Analog Devices AD6426XST, AD6426XB Datasheet

a

Enhanced GSM Processor

Preliminary Technical Information

FEATURES Complete Single Chip GSM Processor Channel Codec Subsystem including

Channel Coder/Decoder Interleaver/De-interleaver Encryption/Decryption

Control Processor Subsystem including

16-bit Control Processor (H8/300H) Parallel and Serial Display Interface Keypad Interface EEPROM Interface SIM-Interface Universal System Connector Interface Interface to AD6425 Control of Radio Subsystem Programmable backlight duty cycle Real Time Clock with Alarm Battery ID Chip Interface

DSP Subsystem including

16-bit DSP with ROM coded firmware for Full rate Speech Encoding/Decoding (GSM 06.10) Enhanced Full Rate Speech

Encoding/Decoding (GSM 06.60) Equalization with 16-state Viterbi (Soft Decision) DTMF and Call Progress Tone Generation

Power Management of Mobile Radio Slow Clocking scheme for low Idle Mode current Ultra Low Power Design On-chip GSM Data Services up to 14.4 kbit/s JTAG Test Interface

2.4V to 3.3V Operating Voltage 144-Lead LQFP and 144-Lead PBGA packages

APPLICATIONS GSM 900 / DCS1800 / PCS1900 Mobile Stations (MS) Compliant to Phase 1 and Phase 2 specifications

GENERAL DESCRIPTION

The AD6426 Enhanced GSM Processor (EGSMP) is the central component of the highly integrated AD20msp425 GSM Chipset. Offering a low total chip count, low bill of materials cost and long talk and standby times, the chipset offers designers a straightforward route to a highly competitive product in the GSM/DCS1800 market.

The EGSMP performs all the baseband functions of the Layer 1 processing of the GSM air interface. This includes all data encoding and decoding processes as well as timing and radio sub-system control functions.

The EGSMP supports full rate and enhanced full rate speech traffic as well as a full range of data services including F14.4.

In addition, the EGSMP supports both A5/1 and A5/2 encryption algorithms as well as operation in non-encrypted mode.

The EGSMP integrates a high performance 16-bit microprocessor (Hitachi H8/300H), that supports all the GSM terminal software, including Layer 1, 2 and 3 of the GSM protocol stack, the MMI and applications software such as data services, test and maintenance.

The use of the standard H8 processor allows the use of HIOS, the Hitachi real time kernel, as well as a full range of software development tools including C compilers, debuggers and incircuit emulators. The EGSMP also integrates a high performance 16-bit Digital Signal Processor (DSP), which provides speech transcoding and supports all audio functions in both transmit and receive. In receive it equalizes the received signal using a 16-state (Viterbi) soft decision equalizer.

The EGSMP interfaces with all the peripheral sub-systems of the terminal, including the keypad, memories, display driver, SIM, DTE and DTA data services interface and radio. It also has a general purpose interface that can be used to support an external connection to a car kit or battery charger.

The EGSMP interfaces with the AD6425 or the AD6421 Voiceband/Baseband Codec through a dedicated serial port.

ORDERING GUIDE

UNIVERSAL

SYSTEM CONN.

INTERFACE

TEST

INTERFACE

SIM

INTERFACE

EEPROM

INTERFACE

MEMORY

INTERFACE

Figure 1. Functional Block Diagram

Model Temperature Range Package AD6426XST -25°C to +85°C 144-Lead LQFP

AD6426XB -25°C to +85°C 144-Lead PBGA

CHANNEL

CODEC

DSP

CHANNEL

EQUALIZER

SPEECH

CODEC

CONTROL

PROCESSOR

AD6426

VOICEBAND /

BASEBAND

CODEC

INTERFACE

DISPLAY

INTERFACE

RADIO

INTERFACE

ACCESSORY

INTERFACE

KEYPAD / BACKLIGHT INTERFACE

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 1 - Confidential Information

Preliminary Technical Information

AD6426

USCRI

SYSTEM

CONNECTOR

ACCESSORY

SIM

EEPROM

BACKLIGHT BACKLIGHT

KEYPAD

FLASH

ROM

SRAM

DISPLAY

POWER

SUB-

SYSTEM

USCRX USCTX USCCTS USCRTS

GPIO [9:0] GPCS GPPWRCTL

SIMCARD SIMDATAOP SIMDATAIP SIMCLK SIMRESET SIMPROG SIMSUPPLY

EEPROMEN EEPROMDATA EEPROMCLK

KEYPADROW [5:0] KEYPADCOL [3:0]

FLASHPWD ROMCS ADD [20:0] DATA [15:0]

RAMCS

RD WR HWR LWR

LCDCTL DISPLAYCS

VDDRTC PWRON

IRQ6 RESET BOOTCODE

ENHANCED

GSM

PROCESSOR

AD6426

VDD(10) GND(10)

CLKIN

OSC13MON

OSCIN

OSCOUT JTAGEN

TCK TMS

TDI

TDO

CLKOUT

VBCRESET

ASDO

ASOFS

ASCLK

ASDI

BSDO

BSOFS

BSCLK

BSDI

BSIFS

VSDO

VSDI

VSCLK

VSFS

RXON

TXENABLE

TXPHASE

TXPA

CALIBRATERADIO

RADIOPWRCTL

SYNTHEN0 SYNTHEN1

SYNTHDATA

SYNTHCLK

AGCA AGCB

VCTCXO

JTAG

PORT

VBC / EVBC AD6421 / 25

MCLK RESET

ASDI ASDIFS ASDOFS ASCLK ASDO

BSDI BSDIFS BSCLK BSDO BSDOFS

MODE

VSDI VSDO VSCLK VSFS

RXON TXON

RADIO

Figure 2. External Interfaces of the AD6426

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 2 - Confidential Information

Preliminary Technical Information

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 3 - Confidential Information

Preliminary Technical Information

PIN FUNCTIONALITY ( Normal Mode)

Group Pin Name Pins I/O Default / Alternative Function(s) *

General CLKIN 1 I 13 MHz Clock Input

RESET 1 I Reset input IRQ6 1 I / I Interrupt Request # 6 / Non-Maskable Interrupt (NMI) * OSC13MON 1 O 13 MHz Oscillator Power Control Signal BOOTCODE 1 I Boot Code Enable VDD 10 Supply Voltage

GND 10 Ground Memory ADD19 : 0 20 O Processor Address Bus Interface GPO10 1 O / O General Purpose Output 10 / Address (20) *

DATA15 : 0 16 I/O Processor Data Bus

RD 1 O Processor Read Strobe

HWR 1 O Processor High Write Strobe / Upper Byte Strobe

LWR 1 O Processor Low Write Strobe / Lower Byte Strobe

WR 1 O Processor Write Strobe

FLASHPWD 1 O / I /OFLASH Power Down / WAIT / General Purpose Output

11* RAMCS 1 O External RAM Chip Select ROMCS 1 O External ROM Chip Select

SIM SIMCARD 1 I /

I/O

Interface SIMDATAOP 1 O SIM Data Output

SIMDATAIP 1 I SIM Data Input SIMCLK 1 O SIM Clock SIMRESET 1 O SIM Reset SIMPROG 1 O /

I/O

SIMSUPPLY 1 O SIM Supply Enable

EEPRROM EEPROMDATA 1 I/O EEPROM Data Interface EEPROMCLK 1 O EEPROM Clock / High Speed Logger Clock

EEPROMEN 1 O EEPROM Enable / High Speed Logger Frame Sync

Display / DISPLAYCS 1 O Display Controller Chip Select / Chip Enable Backlight / LCDCTL 1 O LCD Control / Serial Display Data Output Keypad BACKLIGHT 1 O Backlight Control Interface KEYPADROW5 : 0 6 I Keypad Row Inputs

KEYPADCOL3 : 0 4 O Keypad Column Strobes (open drain, pull low)

SIM Card Detect / General Purpose I/O 16 *

SIM Program Enable / General Purpose I/O 15 *

AD6426

* Note: Functionality of these pins can be changed under software control.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 4 - Confidential Information

Preliminary Technical Information

Pin Functionality ( NORMAL MODE)

Group Pin Name Pins I/O Default / Alternative Function(s) *

EVBC Interface CLKOUT 1 O Clock Output to EVBC

EVBCRESET 1 O EVBC Reset Output (also for Display reset)

ASPORT ASDO 1 O EVBC Auxiliary Serial Port Data Output

ASOFS 1 O EVBC Auxiliary Serial Port Output Framing Signal ASCLK 1 O EVBC Auxiliary Serial Port Clock Output ASDI 1 I EVBC Auxiliary Serial Port Data Input

BSPORT BSDO 1 O EVBC Baseband Serial Port Data Output

BSOFS 1 O EVBC Baseband Serial Port Output Framing Signal BSCLK 1 I EVBC Baseband Serial Port Clock Input BSDI 1 I EVBC Baseband Serial Port Data Input BSIFS 1 I EVBC Baseband Serial Port Input Framing Signal

VSPORT VSDO 1 O EVBC Voiceband Serial Port Data Output

VSDI 1 I EVBC Voiceband Serial Port Data Input VSCLK 1 I EVBC Voiceband Serial Port Clock Input VSFS 1 I EVBC Voiceband Serial Port Framing Signal

Radio Interface RXON 1 O Receiver On

TXPHASE 1 O Switches between Rx and Tx TXENABLE 1 O Transmit Enable / General Purpose Output 14 * TXPA 1 O / O Power Amplifier Enable / General Purpose Output 12 * CALIBRATERADIO 1 O / O Radio Calibration / General Purpose Output 13 * RADIOPWRCTL 1 O Radio Power-Down Control SYNTHEN0 1 O Synthesizer 1 Enable SYNTHEN1 1 O Synthesizer 2 Enable / General Purpose Output 17 * SYNTHDATA 1 O RF Serial Port Data SYNTHCLK 1 O RF Serial Port Clock AGCA 1 O AGC Gain Select / General Purpose Output 18 AGCB 1 O AGC Gain Select / General Purpose Output 19

Universal USCRI 1 1/O USC Ring Indicator / Serial Clock / GPO20 System USCRX 1 I USC Receive Data Connector USCTX 1 O USC Transmit Data / Baseband Serial Port Data Input Interface USCCTS 1 I/O USC Clear to Send / Serial Frame Sync / GPI22

USCRTS 1 O USC Ready to Send / GPO21

AD6426

* Note: Functionality of these pins can be changed under software control.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

Pin Functionality ( NORMAL MODE)

Group Pin Name Pins I/O Default / Alternative Function(s) *

Accessory GPIO0 1 I/O General Purpose Inputs/Output 0 Interface GPIO1 1 I/O General Purpose Inputs/Output 1 / Radio BANDSELECT1

* GPIO2 1 I/O General Purpose Inputs/Output 2 / Radio BANDSELECT0

* GPIO3 1 I/O General Purpose Inputs/Outputs 3 / Serial Display Address

Output * GPIO4 1 I/O General Purpose Inputs/Outputs 4 / Serial Display Clock

Output * GPIO5 1 I/O General Purpose Inputs/Outputs 5 / Battery ID Interface * GPIO6 1 I/O General Purpose Inputs/Output 6 / VBIAS * GPIO7 1 I/O General Purpose Inputs/Output 7 / Antenna Select * GPIO8 1 I/O General Purpose Inputs/Output 8 / DEBUG UART

Transmit Data * GPIO9 1 I/O General Purpose Inputs/Output 9 / DEBUG UART

Receive Data * GPCS 1 O General Purpose Chip Select

Real Time OSCIN 1 I 32.768 kHz Crystal Input Clock OSCOUT 1 O 32.768 kHz Oscillator Output and Feedback to Crystal Interface VDDRTC 1 RTC Supply Voltage

PWRON 1 O Power ON/OFF Control

Test Interface JTAGEN 1 I JTAG Enable

TCK 1 I JTAG Test Clock / HSL Data 0 TMS 1 I JTAG Test Mode Select / HSL Data 1 / DAI Reset TDI 1 I JTAG Test Data Input / HSL Data 3 / DAI Data 1 TDO 1 O JTAG Test Data Output / HSL Data 2 / DAI Data 0

AD6426

* Note: Functionality of these pins can be changed under software control.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

OVERVIEW

The GSM air interface has been formulated to provide high quality digital mobile communication. As well as supporting the traffic channels (speech and/or data), the air interface specifies a number of signaling channels that are used for call set up and communications between the network infrastructure and the mobile. These signaling channels provide the mobile specific features such as handover, as well as a number of other intelligent features.

The GSM system closely follows the OSI 7-layer model for communications. Specifically, GSM defines Layers 1, 2 and 3 of the protocols. The lowest level being Layer 1, or the Physical Layer. It is this part of the network processing for which the EGSMP is responsible, performing some of the Layer 1 functions in dedicated hardware for minimum power consumption and some in software for increased flexibility.

Layer 1 covers those signal processing functions required to format the speech/data for transmission on the physical medium. Data must be structured to allow for identification, recovery and error correction so that the information can be supplied error free to the layer 2 sub-systems and to the traffic sources. In addition, the physical layer processing includes the timing of both transmit and receive data, the encryption of data for security purposes and the control of the Radio subsystem to provide timing and to optimize the radio frequency characteristics. An object code license to Layer 1 software is supplied with the AD20msp425 chipset.

FUNCTIONAL PARTITIONING

This datasheet gives only an overview about the functionality of the EGSMP. The EGSMP consists of three main elements; the Channel Codec and the Control Processor Sub-System including several interfaces and the DSP as shown in Figure

1. The Channel Codec is responsible for the Layer 1 channel

coding and decoding of traffic and control information. The Processor Sub-system supports the software functions of the protocol stack and interfaces with the bus peripheral subsystems of the terminal. The DSP performs the channel equalization and speech transcoding.

Channel Codec Sub-System

The Channel Codec processes data from two principal sources; traffic and signaling. The former is normally continuous and the latter determined on demand. Traffic comes in two forms; speech and user data. The various traffic sources and the signaling sources are all processed differently at the physical layer. Speech traffic data is supplied by the speech transcoder and the remaining data types are sourced from the Control Processor and interfaced via a dedicated data interface. The Channel Codec subsystem functional block diagram is shown in Figure 3.

DSP

INTERFACE

REGISTERS

DECODE

H8

INTERFACE

INTERLEAVEENCODE

DEINTERLEAVE

RADIO / SYNTHESIZER TIMING AND CONTROL

ENCRYPT

DECRYPT

VBC

INTERFACE

TEST

INTERFACE

Figure 3. Channel Codec Subsystem

The transmit and receive functions of the Channel Codec are timed by an internal timebase that maintains accurate timing of all sub-systems. This timebase is aligned with the on-air receive signal and all system control signals, both internal and external, are derived from it.

The physical layer processing can be divided into 4 phases, two each for up- and downlink. The data in the transmit path undergoes an ENCODE phase and then a TRANSMIT phase. Similarly, data in the downlink path is termed the receive data and it undergoes a RECEIVE phase followed by a DECODE phase. The buffer between the ENCODE and TRANSMIT functions is the INTERLEAVE module that holds the data and permits the building of the transmit burst structure. Similarly the DEINTERLEAVE module forms the buffer between the RECEIVE and the DECODE processes.

Each of these four phases is controlled explicitly by the Control Processor via control registers that define the mode of operation of each sub-module and the data source they should process. Typically these control values are updated every TDMA frame in response to interrupts from the internal timebase.

The ENCODE process involves the incorporation of error protection codes. All data is sourced in packets and two forms of error coding applied; block coding (parity or Fire code) and convolution coding. The resultant data block is then written to the INTERLEAVE module where it is buffered in a RAM. Data is read from the interleave buffer memories contiguously but written in non-contiguous manner, thereby implementing the interleaving function. The TRANSMIT process uses a different time structure now associated with the on-air TDMA structure. The data is read from the INTERLEAVE module and formatted into bursts with the requisite timing. This involves adding fixed patterns such as the tail bits and training sequence code. The resultant burst is written to the external Baseband Converter where the modulation is performed and the output timed to the system timebase before transmission.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

A feature of the GSM system is the application, as part of the TRANSMIT process, of data encryption for the purpose of link security. After the INTERLEAVE module the data may be encrypted using the prescribed A5/1 or A5/2 encryption algorithm.

The RECEIVE function requires unmodulated baseband data from the equalizer. As necessary the data is decrypted and written to the DEINTERLEAVE module. This is conducted at TDMA frame rate, although precise timing is not necessary at this stage.

The DECODING process reads data from the DEINTERLEAVE module, inverting the interleave algorithm and decodes the error control codes, correcting and flagging errors as appropriate. The data also includes a measure of confidence expressed as two additional bits per received symbol. These are used in the convolution decoder to improve the error decoding performance. The resultant data is then presented to the original sources as determined by the control programming. The Channel Codec interfaces with the speech transcoder for speech traffic data and with an equalizer for recovered receive data. In the AD6426 the equalizer and speech transcoder are implemented in the DSP.

Processor Sub-System

The Processor Sub-System consists of a high performance 16bit microcontroller together with a selection of peripheral elements. The processor is a version of the Hitachi H8/300H that has been developed to support GSM applications and which is well suited to support the Protocol Stack and Application Layer software.

DSP Sub-System

The DSP Sub-System consists of a high performance 16-bit digital signal processor (DSP) with integrated RAM and ROM memories. The DSP performs two major tasks: speech transcoding and channel equalization. Additionally several support functions are performed by the DSP. The instruction code, which advises the DSP to perform these tasks, is stored in the internal ROM. The DSP sub-system is completely selfcontained, no external memory or user-programming is necessary.

Speech Transcoding

In Full Rate mode the DSP receives the speech data stream from the EVBC and encodes the data from 104 kbit/s to 13 kbit/s. The algorithm used is Regular Pulse Excitation, with Long Term Prediction (RPE-LTP) as specified in the 06-series GSM Recommendations.

In Enhanced Full Rate mode, the DSP encodes the 104 kbit/s speech data into 12.2 kbit/s (speech) +0.8 kbit/s (CRC and repetition bits) as additionally specified in the Phase 2 version of the 06-series GSM Recommendations. In both modes, the DSP also performs the appropriate voice activity detection and discontinuous transmission (VAD/DTX) functions.

Alternatively the DSP receives encoded speech data from the channel codec sub-system including the Bad Frame Indicator (BFI). The Speech decoder supports a Comfort Noise Insertion (CNI) function that inserts a predefined silence descriptor into the decoding process. The resulting data, at 104 kbit/s, is transferred to the EVBC.

Equalization

The Equalizer recovers and demodulates the received signal and establishes local timing and frequency references for the mobile terminal as well as RSSI calculation. The equalization algorithm is a version of the Maximum Likelihood Sequence Estimation (MLSE) using the Viterbi algorithm. Two confidence bits per symbol provide additional information about the accuracy of each decision to the channel codec’s convolutional decoder. The equalizer outputs a sequence of bits including the confidence bits to the channel codec subsystem.

Audio Control

The DSP subsystem is also responsible for the control of the audio path. The EVBC provides two audio inputs and two audio outputs, as well as a separate buzzer output, which are switched and controlled by the DSP. Furthermore the EVBC provides for variable gain and sensitivity which is also controlled by the DSP under command of the Layer 1 software.

Tone Generation

All alert signals are generated by the DSP and output to the EVBC. These alerts can be used for the buzzer or for the earpiece. The tones used for alert signals can be fully defined by the user by means of a description which provides all the parameters required such as frequency content and duration of components of the tone. The tone descriptions are provided by the Layer 1 software.

Automatic Frequency Control (AFC)

The detection of the frequency correction burst provides the frequency offset between the mobile terminal and the received signal. This measure is supplied to the Layer 1 software which then requests a correction of the master clock oscillator frequency via the AFC-DAC in the EVBC. In order to do so the Layer 1 software includes a transfer function for the oscillator frequency against the voltage applied. The DSP provides the measurements for the AFC.

Automatic Gain Control (AGC)

The DSP is also responsible for making measurements of the power in the received signal. This is used for a number of functions including RSSI measurement, adjacent channel monitoring and AGC. The Layer 1 software passes the requested gain level to the DSP, which then analyzes the received signal and generates an AGC control signal. Depending on the radio architecture, this control signal will be used in digital form or, converted by the AD6425 in analog form.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

REGISTERS

The AD6426 contains 88 Channel Codec Control Registers, 69 H8 Peripheral Registers mapped into the Channel Codec address space starting at 8000h. All registers are normally accessed by the Layer 1 software provided with the AD20msp425 chipset. The user is not expected to read or write to any registers other than through the Layer 1 software. Therefore only a limited description of these registers is given here to ease the understanding of the functional behavior of the AD6426. Only registers which can be modified or monitored by the user under control of the Layer 1 software are shown. The Channel Codec Control Registers are listed in Table 1, and the H8 Peripheral Control Registers in Table 3

A description of the Channel Codec Control Register contents is shown in Table 2, and of the H8 Peripheral Registers in Table 4.

Table 1. CC Control Registers

Address Name

0 00 H SYSTEM R/W 2 02 H RADIO CONTROL R/W 4 04 H BSIC R/W 5 05 H TSC R/W 6 06 H TRAFFIC MODE R/W 7 07 H DAI R/W 8 08 H EEPROM R/W

9 09 H KEYPAD COLUMN R/W 10 0A H KEYPAD ROW RD 28 1C H EVBC SERIAL 1 RMW 29 1D H EVBC SERIAL 2 RMW 30 1E H EVBC IF CONTROL R/W 35 23 H RESET R/W 37 25 H SYNTH BIT COUNT R/W 38 26 H SYNTH CONTROL R/W 39 27 H ERROR COUNT RMW 40 28 H SYNTHESIZER 1 WR 41 29 H SYNTHESIZER 2 WR 42 2A H SYNTHESIZER 3 WR 43 2B H SYNTHESIZER 4 WR 44 2C H POWER CONTROL INT R/W 45 2D H POWER CONTROL EXTERNAL R/W 46 2E H SWRESET 1 R/W 47 2F H SWRESET 2 R/W 48 30 H INTERRUPT COUNTER R/W 49 31 H BBC TX ADDRESS R/W 50 32 H BACKLIGHT WR 51 33 H VERSION CONTROL RD

Address Name

72 48 H SYNTHESIZER PROGRAM R/W 73 49 H TXPA OFFSET 1 R/W 74 4A H TXPA OFFSET 2 R/W 75 4B H TXPA WIDTH 1 R/W 76 4C H TXPA WIDTH 2 R/W 77 4D H IRQ ENABLE R/W 78 4E H IRQ LATCH RMW 79 4F H CC GPIO R/W 88 58 H ccGPO R/W

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

Table 2. CC Control Register Contents

# 7 6 5 4 3 2 1 0

0

Autocalibrate Backlight 1 Test Data Enable Calibrate Radio Encryption Type Encrypt Key Load

Tx Monitor

2

Enable

4 5

6 7 8

9 10 28 29 30 35

37

38 39

40 41 42 43

44

45

46

47 48

49 50 51 72 73 74 75 76 77 78 79 88 GPO19 Sel GPO18 Sel

TxPA

Polarity

Isolate

Synthesizer Synthesizer

Enable Polarity

GPO11 Data GPO11 Select IRQ5 Enable IRQ4 Enable IRQ3 Enable IRQ2 Enable FLASHPWD dis. NMI Edge Pol.

Tx Phase

Polarity

INT COUNT[8] OCE OVERRIDE Interrupt Counter

BAND ENABLE NMI Select GPO10 Data GPO10 Select Data Ser. Select DAIRESET

Config. Dynam.

Synthesizer Synthesizer

Enable Type

Coprocessor

Power Control

EVBC Read EVBC Tx Address

Rx Radio Control

Polarity

Synthesizer

Interface active

Synthesizer

Clock Polarity

Backlight Duty Cycle

Output Clock

Enable

Disable Synth.1 Disable Synth. 0 Synt. Enable Sel. Synt. Mode Pin Mode

IRQ5 active IRQ4 active IRQ3 active IRQ2 active

GPIO9 OP En GPIO8 OP En GPIO9 Data GPIO8 Data

Tx Radio Control

Polarity

Override

EEPROM Data

Output Enable

Tx Data Delay EVBC Rx-Buff. full EVBC Tx-Buf.empty

GP Power

Control

INT CNT RST Decode

GPO17 Sel

Tx PHASE

Enable

Base Station Identity Code

Autocalibration

Type

Keypad Row

EVBC Serial Port ( 15 : 8 )

EVBC Serial Port ( 7 : 0 )

EVBC Reset DSP Reset CC Reset

Error Count Synthesizer (31: 24) Synthesizer (23: 16)

Synthesizer (15: 8)

Synthesizer (7: 0)

Encryption

SW-Reset

Version

TD ( 7 : 0 )

TW ( 7 : 0 )

Monitor

Enable

Traffic Frame

Enable

EERPOM

Clock

Keypad Column

Synthesizer Bit Count

Synthesizer

Load Dynamic 1

Synth. Interface

Power Enable

DSP Power

Control

EVBC Interface

SW-Reset

Deinterleave

SW-Reset

Interrupt Counter

Modulate 1 Backlight LED Control

GPO19 GPO18 GPO17

Receive

Enable

Training Sequence Code

Decryption

Enable

EEPROM

Enable

Synthesizer

Load Dynamic 2

DSP Interface Power Enable

Radio Power

Control

DSP Interface

SW-Reset

interleave

SW-Reset

TD ( 9 : 8 )

TW ( 9 : 8 )

Encryption Power

Synthes. Interface

Transmit

Enable

Encryption

Enable

EERPOM

Data

Synthesizer

Clock

Enable

SW-Reset

Encode

SW-Reset

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

Table 3. H8 Peripheral Control Registers

Address Name

0 8000h SMSMR R/W 1 8001h SMBRR R/W 2 8002h SMSCR R/W 3 8003h SMDR W 4 8004h SMSSR R/W 5 8005h SMDR R

6 8006h SMSCMR R/W 10 8010h BUFRBR R 10 8010h BUFTHR W 10 8010h BUFDLL R/W 11 8011h BUFIER R/W 11 8011h BUFDLM R/W 12 8012h BUFIIR R 12 8012h BUFFCR W 13 8013h BUFLCR R/W 14 8014h BUFMCR R/W 15 8015h BUFLSR R/W 16 8016h BUFMSR R/W 17 8017h BUFSCR R/W 18 8018h UIBRBR R 18 8018h UIBTHR W 19 8019H UIBSSR R/W 26 801AH UIBER R 27 801BH UIBTSR R 28 801CH UIBTLR R/W 29 801Dh UIBBLR R 32 8020h FIXRBR R 32 8020h FIXTHR W 32 8020h FIXDLL R/W 33 8021h FIXIER R/W 33 8021h FIXDLM R/W 34 8022h FIXIIR R 35 8023h FIXLCR R/W 36 8024h FIXMCR R/W 37 8025h FIXLSR R/W 38 8026h FIXMSR R/W 39 8027h FIXSCR R/W 48 8030h SCCR R/W 49 8031h SPSSR R/W 50 8032h SDIR1 (MS) R 51 8033h SDIR0 (LS) R 52 8034h SDOR1 (MS) W 53 8035h SDOR0 (LS) W

Address Name

64/65 8040/1h DISPDDR W

66 8042h DISPCR R/W 67 8043h DDOR W 68 8044h DDIR R 69 8045h DRR R/W 72 8048h WDTR W 80 8050h MEM IF R/W 81 8051h PERST R/W 82 8052h PERCR R/W 84 8054h TAR R/W 85 8055h PERCLK R/W 96 8060h RTCTR1 R/W 97 8061h RTCTR2 R/W 98 8062h RTCTR3 R/W

99 8063h RTCTR4 R/W 100 8064h RTCTR5 R/W 101 8065h RTCAR1 R/W 102 8066h RTCAR2 R/W 103 8067h RTCAR3 R/W 104 8068h RTCCR R/W 105 8069h RTCSRZ R/W 106 8074h SERDISPLAY/NMI R/W

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

Table 4. H8 Peripheral Register Contents

# 7 6 5 4 3 2 1 0

0 ODD 1 BRR[3:0] 2 TIE RIE TE RE AE DATEN CLKPOL CLKEN 3 Transmit[7:0] 4 TDRE RDRF ORER ERS PER TEND 5 Receive[7:0]

6 10 RxData[7:0] 10 TxData[7:0] 10 BRR[7:0] 11 EDSSI ELSI ETBEI ERBFI 11 BRR[15:8] 12 FIFO ST FIFO ST InterruptID[2:0] Int Pend 12 RxLevel[1:0] DMA TX FIFO RX FIFO FIFO EN 13 DLAB SET BRK Stick Par. Ev. Parity Parity EN Stop Bits WLS[1:0] 14 Loop Out2 Out1 RTS DTR 15 Error Rx FIFO TEMT THRE Break Interrupt Framing Error Parity Error Overrun Error Data Ready 16 DCD RI DSR CTS DDCD TERI DDSR DCTS 17 SCR[7:0] 18 RxData[7:0] 18 TxData[7:0] 19 MRESET UIB Enable PROC 26 TE RE FE PE BI OE 27 MODEM TX Level RX Time RX Level 28 Tx Trigger Level [3:0] Rx Trigger Level [3:0] 29 Chars in TX Buffer [3:0] Chars in Rx Buffer [3:0] 32 RxData[7:0] 32 TxData[7:0] 32 BRR[7:0] 33 EDSSI ELSI ETBEI ERBFI 33 BRR[15:8] 34 FIFO ST FIFO ST InterruptID[2:0] Int Pend R 35 DLAB SET BRK Stick Par. Ev. Parity Parity EN Stop Bits WLS[1:0] R/W 36 Loop Out2 Out1 RTS DTR 37 Error Rx FIFO TEMT THRE Break Interrupt Framing Error Parity Error Overrun Error Data Ready 38 DCD RI DSR CTS DDCD TERI DDSR DCTS 39 SCR[7:0] 48 TEST RX MODE CLOCK TX ENABLE CROSSPOINT

SWITCH 49 SDORIE SDIROE IE SDIRIE SDOR EMT SDIR OE SDIR FULL 50 Receive[15:8] 51 Receive[7:0] 52 Transmit[15:8] 53 Transmit[7:0]

64/65 Data[7:0]

UCONN

SWITCH

R/W

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

H8 Peripheral Register Contents (Continued)

# 7 6 5 4 3 2 1 0

66 SDISP POL DISP CLKEN CLK FREQ DDREMT 67 Transmit Data [7:0] 68 Receive Data [7:0] 69 Reset Data [7:0] 72 WDT[7:0] 80 TEST CLK Unused Unused UART SEL DALLAS EN RAM SEL7 DISP SRAM16 81 WDT INT RTC INT KEYINT DALLAS INT FA INT UA INT SSINT MONINT 82 WDT IE RTC IE KEY IE DALLAS IE FA IE UA IE SS IE MONIE 84 Test Key[7:0] 85 USCCLK EN BUCLK EN FUCLK EN DSPPLL[2:0] 96 TR[1] 97 TR[2] 98 TR[3]

99 TR[4] 100 TR[5] 101 AR[1] 102 AR[2] 103 AR[3] 104 105 106

INTEN

INT

TIMWEN ALAWEN PWRUEN AGCENN FBENN Unused Unused

TIMER ALARM APWRUP OSCFAIL 32K PRESENT TESTOUT

TXENABLE

NMI

SERDISP MODE

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

GENERAL CONTROL Clocks

Clock Input

The AD6426 requires a single 13 MHz, low level clock signal, which has to be provided at the pin CLKIN. For proper operation a signal level of 250 mVPP minimum is required. This feature eases system design and reduces the need for external clock buffering. Only minimal external components are required as shown in Figure 4.

The internal clock buffer can accept any regular waveform as long as it can find voltage points in the signal, for which a 50% duty cycle can be determined. This condition is met for sinewaves, triangles, or slew-limited square waves. Dedicated circuitry searches for these points and generates the respective bias voltage internally.

The external capacitor (1nF) decouples the bias voltage of the clock signal generated by the oscillator from the internally generated bias voltage of the clock buffer circuitry.

The LC-filter shown is optional. It ensures, that the input signal is “well behaved” and sinusoidal. Additionally it filters out harmonics and noise, that may be on top of the pure 13 MHz signal.

Optional

13 MHz Filter

13 MHz

VCTCXO

OUT

2.2 µH

68 pF

1nF

CLKIN

AD6422

Figure 4. Clock Input Circuitry

Clock Output

The input clock drives both the H8 and the Channel Codec directly. A gated version, controlled by the Output Clock Enable flag in CC Control Register 45, drives the CLKOUT pin of the EVBC interface. The stand-by state of CLKOUT is logic zero. The CLKOUT output will be active on reset.

Slow Clocking

To reduce power consumption of AD20msp425 solutions, a new slow clocking scheme has been designed into the AD6426. This scheme allows the VCTCXO to be powered down between paging blocks during Idle Mode and for a

32.768kHz oscillator to keep the time reference during this period. Only a common 32.768kHz watch crystal is required to take advantage of this scheme. As in previous generations, power consumption is also kept to a minimum using asynchronous design techniques and by stopping all unnecessary clocks.

Layer 1 software and logic built into the AD6426 are responsible for maintaining synchronization and calibration of the slow clock and ensure the validity of the time reference

under all circumstances. The active-high OSC13MON output is prevented from becoming inactive if the 32.768kHz signal is not present. The following table describes the functionality of the relevant pins.

Name I/O Function

OSCIN I 32.768kHz Crystal Input OSCOUT O 32.768kHz Oscillator

Output

OSC13MON O 13 MHz Oscillator Power

Control

PWRON O Power ON/OFF Control

The following table lists the recommended specification for a 32kHz crystal.

Parameter Min Typ Max Units

ESR 50

kΩ

Shunt Capacitance 2 pF Load Capacitance 6 12.5 30 pF Turnover

25 °C

Temperature (To) Parabolic Curvature

0.040 ppm/°C

Constant (K)

Real Time Clock and Alarm

The AD6426 provides a simple Real Time Clock (RTC) using the 32.768kHz clock input. A 40 bit counter allows for more than one year of resolution. The RTC module contains a

32.768kHz on chip oscillator buffer designed for very low power consumption and a set of registers for a timer, alarm, control and status functions.

The RTC circuit is supplied by two sources; a VDDRTC supply pin and the main system VDD. It is the handset designer’s responsibility to provide suitable switching between the main system VDD and a backup supply to ensure the RTC module is permanently powered.

The VDDRTC pin is intended to interface to a backup battery circuit or charge holding network in order for the RTC to maintain timing accuracy when the main battery is removed and the handset is powered down.

The user can set an alarm time at which the handset powers up. If an alarm time is set, the current time matches the alarm time, and the power on alarm feature is enabled, the handset is powered up by asserting the PWRON pin for a period of approximately 2 seconds.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

The VDDRTC was designed to interface with either a:

• Lithium Battery or

• Capacitor in the range of 0.4F (maximum for ~24 hours

standby) to 8mF (~30 minutes standby)

Reset

The AD6426 is reset by setting the RESET pin to GND. This will reset the H8-processor, the Channel Codec, the internal DSP as well as the LCD controller interface and Boot ROM logic. Both the DSP and the Channel Codec will be held in reset until the RESET register is written to by the H8. At least 50 CLKIN cycles must elapse before deasserting the RESET pin and at least a further 100 cycles before writing to the RESET register.

For reset at power up, the DSP must be held in reset for at least 2000 clock cycles to enable the internal PLL to lock.

The RESET CC Control Register 35 contains the following flags:

Bit Function

3

EVBC Reset

2

DSP Reset

0

Channel Codec Reset

The H8 fetches its program start vector from location 0x0000 in segment zero. This can either be from external ROM or internal Boot ROM, depending on the status of the BOOTCODE pin.

Interrupts

The interrupts are controlled by the two CC Control Registers 77 and 78. These registers only apply to Emulation Mode, in that they define which of the interrupts are able to assert CCIRQ2.

Bit IRQ ENABLE CC Control Register 77

5

IRQ 5 Enable

4

IRQ 4 Enable

3

IRQ 3 Enable

2

IRQ 2 Enable

Bit IRQ LATCH CC Control Register 78

5

IRQ 5 active

4

IRQ 4 active

3

IRQ 3 active

2

IRQ 2 active

Additionally 8 functional modules can be reset under control of the two SWRESET registers:

Bit SWRESET 1 CC Control Register 46

3

Encryption Software Reset

2

EVBC Interface Software Reset

1

DSP Interface Software Reset

0

Synthesizer Interface Software Reset

Bit SWRESET 2 CC Control Register 47

3

Decode Software Reset

2

Deinterleave Software Reset

1

Interleave Software Reset

0

Encode Software Reset

The JTAG circuitry is reset by a power-on reset mechanism. Further resets must be done by asserting the TMS input high for at least five TCK clock cycles. When JTAG compliance is re-enabled, the JTAG is reset forcing the AD6426 into its normal mode of operation, selecting the BYPASS register by default.

NMI

The non-maskable interrupt NMI input of the H8 processor is multiplexed with the IRQ6 pin. IRQ6 is the default function, though asserting the NMI Select flag in CC Control Register 7 will select the NMI function. When not selected, NMI will be tied off high internally, though it remains driven by the JTAG port for test purposes. The signal is programmable to be edge or level sensitive. It defaults to falling edge. The edge polarity can be changed by programming the H8. However, if FLASHPWD is used then the same setting must be applied to CC Control Register 77. The default of zero implies falling edge sensitive. This way NMI going active can correctly deassert FLASHPWD. The NMI can be used for test purposes or user defined features. NMI is capable of bringing the control processor out of software standby mode and therefore suitable for functions such as alarm inputs, power management etc. During manufacture the NMI can be used to trigger special test code.

In addition NMI can be generated internally thus freeing up the IRQ6 PIN. In this mode the TXENABLE NMI will occur on the rising edge of the TXENABLE as seen at the pin. The H8 should be set up for a negative edge NMI in this case. Setting bit 5 in the SERDISPLAY/NMI H8 Peripheral Control Register 106 to a ONE enables the TXENABLE NMI. However, the Layer 1 Software must program the external INT pin to INT6 before the register bit is set.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

Wait

The H8 microprocessor WAIT input signal can be controlled externally by programming the FLASHPWD pin to switch to the WAIT input function. Setting the flag FLASHPWD Disable in CC Control Register 77 to 1 and GPO11 Select to 0, transforms the FLASHPWD output pin into a WAIT input pin. External devices driving WAIT must drive high on reset and until the software has changed the FLASHPWD pin to the WAIT function.

Automatic Booting

To allow download of FLASH memory code into the final system, the AD6426 provides a small dedicated routine to transfer code through the Data Interface into the FLASH memory. This routine is activated by asserting the BOOTCODE pin.

Power Control

The AD6426 and Layer 1 software is optimized to minimize the mobile radio power consumption in all modes of operation. Two power control registers are dedicated for activating and deactivating functional modules:

Bit POWER CONTROL INTERNAL CC Control

Register 44

2

Synthesizer Interface Power Enable

1

DSP Interface Power Enable

0

Encryption Power Enable

Bit POWER CONTROL EXTERNAL CC Control

Register 45

5

Output Clock Enable (will reset to 1)

4

General Purpose Power Control

2

DSP Power Control

1

Radio Power Control

INTERFACES

The GSM Processor provides eleven external interfaces for dedicated purposes:

1. Memory Interface

2. EEPROM Interface

3. SIM Interface

4. Accessory Interface

5. Universal System Connector Interface

6. Keypad / Backlight / Display Interface

7. Battery ID Interface

8. Voiceband/Baseband Converter (EVBC) Interface

9. Radio Interface

10. Test Interface

11. Debug Interface

Memory Interface

The memory interface of the AD6426 serves two purposes. Primarily, it provides the data, address, and control lines for the external memories (RAM and ROM / FLASH Memory). Secondly, the data and address lines are used to interface with the display. The pins of the memory interface are listed in Table 5.

Table 5. Memory Interface

Name I/O Function

ADD20 : 0 O Address bus DATA15:0 I/O Data bus RD O Read strobe HWR O High write strobe / Upper

Byte Strobe

LWR O Low write strobe / Lower

Byte Strobe WR O Write Strobe RAMCS O RAM chip select ROMCS O FLASH / ROM chip select FLASHPWD O FLASH Powerdown

The HWR and LWR pins can be configured to function as UBS and LBS, respectively, by setting the SRAM16 bit (bit 0) of the MEMIF H8 Peripheral Control Register 80. This bit is reset at power-up. When configured as UBS and LBS, these pins facilitate access of 16-bit SRAM in conjunction with the Read/Write Strobes.

The pin FLASHPWD is automatically asserted low when the H8 enters the Software Standby Mode, and de-asserted when an interrupt causes the H8 to exit the Software Standby Mode. This allows the use of “deep power down mode” for certain FLASH memories. Also the entire data bus is driven low during software standby mode.

EEPROM Interface

The AD6426 provides a 3-wire interface to an external EEPROM by using three GPIOs of the control processor. Table 6 shows the functionality of these three pins.

Table 6. EEPROM Interface

Name I/O Function

EEPROMDATA I/O EEPROM data EEPROMCLK O EEPROM clock EEPROMEN O EEPROM enable

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

The EEPROM interface is controlled entirely through software via the EEPROM register. This allows support for every desired timing and protocol.

Bit EEPROM CC Control Register 8

4

EEPROM Data Output Enable

when set to 1, the content of bit 0 will be written to the pin.

2

EEPROM Clock

Connected to the EEPROMCLK pin

1

EEPROM Enable

Connected to the EEPROMENABLE pin

0

EEPROM Data

Connected to the EEPROMDATA pin

SIM Interface

The AD6426 allows direct interfacing to the SIM card via a dedicated SIM interface. This interface consists of 7 pins as shown in Table 7. Some applications may not require SIMPROG and SIMCARD; thus SIMPROG and SIMCARD can be re-used as additional general purpose I/O-pins.

Table 7. SIM Interface

Name I/O Function

SIMCARD I SIM card detect SIMDATAOP O SIM data output SIMDATAIP I SIM data input SIMCLK O SIM clock SIMRESET O SIM reset SIMPROG O SIM program enable SIMSUPPLY O SIM supply enable

Accessory Interface

The AD6426 provides 12 interface pins listed in Table 8 for control of peripheral devices such as a car kit. However, two general purpose I/O-pins of the Accessory Interface are proposed to be used for additional control of the radio section as described in the Radio Interface chapter.

Table 8. Accessory Interface

Name I/O Function

GPIO9:0 I/O General purpose

inputs/outputs

GPCS O General purpose chip select

All GPIO pins start up as inputs. GPIO8 and GPIO9 are controlled by flags in CC Control Register 79. When the GPIOn OP Enable flag is set to 0, the GPIOn Data flag

reflects the input pin state when read and writing to GPIOn

Data has no effect.

When the GPIOn OP Enable flag is set to 1, the GPIOn Data flag returns when read the last value written to it and controls the GPIOn pin when written to it.

Additional general purpose inputs and outputs are available under software control. The following pins shown in Table 9 become general purpose inputs/outputs or outputs.

Table 9. Additional GPIO / GPO Pins

Pin Name I/O New Function

SIMCARD I/O GPIO16 SIMPROG I/O GPIO15 ADD20 O GPO10 FLASHPWD O GPO11 TXPA O GPO12 CALIBRATERADIO O GPO13 TXENABLE O GPO14 SYNTHEN1 O GPO17 AGCA O GPO18 AGCB O GPO19 USCRI O GPO20 USCRTS O GPO21 USCCTS I GPI22

If the pins SIMCARD and SIMPROG are not required in the application, they can be used as additional H8 programmable general purpose inputs or outputs.

Setting GPO10 Select (CC Control Register 7) to 1, will transform the pin ADD20 into a general purpose output allowing the pin to be directly controlled via GPO10 Data.

By setting GPO11 Select (CC Control Register 77) to 1 and FLASHPWD Disable to 1, the pin FLASHPWD becomes a general purpose output. The pin state is toggled by setting the GPO11 Data flag.

To increase the flexibility of the AD6426, three pins in the Radio Interface are multiplexed within GPO functions. The pins multiplexed are: SYNTHEN1, AGCA and AGCB, with the default function being the Radio Interface. The mode of these pins is controlled by the Channel Codec Register ccGPO.

The GPO[n]Sel bit selects the function of the pin. Setting GPO[n]Sel to one will enable the pin to be controlled by the GPO[n] bit. The GPO[n]Sel bit will override any other pin function selection.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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AD6426

To transform the TXPA pin into a general purpose output, set TXPA Width = 0 (CC Control Register 75 and 76), then use TxPA Polarity flag (CC Control Register 6) to toggle pin state.

To use the CALIBRATERADIO pin as a general purpose output, set the AUTOCALIBRATE flag to zero and use the CALIBRATERADIO flag to toggle pin state.

Universal System Connector Interface

A typical GSM handset requires multiple serial connections to provide data during normal phone operation, manufacturing, testing, and debug. In an ideal case many of these functions could be combined into a single multi-purpose system connector. For example, the USC port can be used for:

• Flash code download for manufacturing and updates

• Booting - UART interface used to download programs to

H8 memory

• DAI Acoustic mode testing - connects System Simulator

(SS) directly to EVBC

• DAI Transcoding mode - connects SS to 6426 for speech

codec testing

• External DTA (Data Terminal Adapter) - asynchronous

link for MSDI interface

• RS232 port - for on-board data services

• H8 debug / monitor

• Hands-free operation - time shared VBC and H8 port

• Receive I/Q monitoring

The Universal System Connector (USC) of the 6426 is designed such that no external glue logic is required to achieve this multi-purpose functionality. Furthermore, since the USC’s function is related to the voiceband and I/Q data serial ports, the USC block is also responsible for the correct configuration of these serial data streams.

The actual system connector has the minimum number of pins to achieve the needed functionality. This save system pins, and allows for a more reliable connector from a manufacturing and mechanical standpoint. The USC defines a 5 pin connector that multiplexes asynchronous, synchronous, and modem control signals as needed:

Name I/O Function

USCRX USCTX USCRTS USCCTS USCRI

I Receive Data O Transmit Data O Ready to Send

I/O Clear to Send / Transmit Frame Sync

1/O Ring Indicator / Serial Clock

Operating modes of the USC Buffered UART Mode (Booting/Data Services)

This mode attaches the H8/DSP buffered UART to the USC, bringing out either the serial bit rate clock or the Modem Control Signal RI. This is the default mode when the phone is powered up.

The BOOTCODE pin will be latched on RESET high. If BOOTCODE is high at RESET, execution begins from the Boot ROM which will configure the buffered UART to download the FLASH programming code into RAM. The FLASH program itself is also downloaded via the UART.

An external Data Terminal Adapter can also be used. In this case Data Services are done external to the phone and then transferred to and from the H8. With the external Data Terminal Adapter, the serial bit rate clock output is selected for USCRI pin.

This mode can be used for a variety of H8 debug tasks as the UART can be used to simply shift debug information out.

Note that when in this mode if the handshake signals and serial bit clock are not required, the RTS and RI pins can be used as extra GPO, and the CTS pin used as an extra GPI.

Time-shared Mode (Multi-switch)

This mode allows time multiplexed communication with both the H8 and DSP. This is most useful as a hands-free solution, but can be used for other purposes also e.g., DAI Transcoding Testing. This mode is used for DAI testing of the DSP’s speech transcoder in which the DSP’s SPORT0 is connected to the USC through the Multi-switch.

DAI Acoustic Mode Testing

This mode is used for DAI testing of the 6425’s phone’s acoustic properties. The VSPORT of the 6425 connects to the USC through the Multi-switch.

IQ Monitoring

This mode is used for testing the RF receive path and allows access to the I and Q samples from the AD6425. The AD6425 signals are simply routed to the USC. This means that the clock and frame sync are provided by the 6425 as well.

16 bit Mode

This mode connects the synchronous data path to the SDIR/SDOR H8 Peripheral Control Registers, giving the H8 full access to the synchronous port bandwidth. This allows a fast synchronous communication to an external device, and is intended to be used for a fast download mechanism.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Keypad / Backlight / Display Interface

This interface combines all functions of display and keyboard as shown in Table 10.

Table 10. Keypad / Backlight / Display Interface

Name I/O Function

KEYPADROW5 : 0 I Keypad row inputs KEYPADCOL3 : 0 O Keypad column strobes BACKLIGHT O Backlight control DISPLAYCS O Display Controller chip

select

LCDCTL O LCD Control / Serial Display

Data Output GPIO3 O Serial Display Data Output GPIO4 O Serial Display Clock Output

By providing 4 keypad-column outputs (open drain, pull low) and 6 keypad-row inputs the AD6426 can monitor up to 24 keys. Additionally, an extra column can be implemented by using the “ghost column” method for a total of 30 keys. The H8 processor is interrupted whenever a key is pressed. The KEYPADCOL pins are connected to the Keypad Column3-0 flags in the KEYPAD COLUMN CC Control Register 9.

Bit KEYPAD COLUMN CC Control Register 9

3 : 0

Keypad Column 3-0

The six KEYPADROW pins are connected to the Keypad Row 5-0 flags in the KEYPADROW CC Control Register 10.

Bit KEYPADROW CC Control Register 10

5 : 0

Keypad Row 5-0

One backlight control output (BACKLIGHT) is provided, which can be modulated to provide the same perceived brightness for a reduced average current. Switching frequency as well as duty cycle can be modified to compensate for ambient lighting levels and changing battery voltage.

AD6426

Bit BACKLIGHT CC Control Register 50

2

Modulate 1

1: 0

Backlight LED Control (1:0)

The frequency is determined by the flags Backlight LED Control (1:0) in the same register as shown in Table 11.

Table 11. Backlight Frequency

Bit 1 Bit 0 Frequency

0 0 6.3475 kHz 0 1 12.695 kHz 1 0 25.390 kHz 1 1 50.780 kHz

Duty cycle can be selected between 0 and 124/128 in 32 steps of 4/128 by programming the Backlight Duty Cycle (4:0) flags in the POWER CONTROL INTERNAL CC Control Register

44.

Bit POWER CONTROL INTERNAL CC Control

Register 44

7 : 3

Backlight Duty Cycle (4:0)

The active period is determined according to the formula:

Active (high) Period =

The 6426 offers both parallel and serial interfaces for connecting to LCD display controllers.

The parallel interface to a LCD controller is provided by two dedicated control signals (LCDCTL and DISPLAYCS) and parts of the address and data bus. A typical interface is shown in Figure 5.

Backlight Duty Cycle (4:0) × 4

128

LCD

ControllerAD6426

The BACKLIGHT output is activated by setting the Backlight1 flag in the SYSTEM CC Control Register 0.

Bit SYSTEM CC Control Register 0

5

Backlight 1

Once activated, an internal PWM circuit can control the

DATA (15:8)

HWR

LCDCTL

ADD(0)

DISPLAYCS

DATA (7:0) R/W E RS CS

frequency and the duty cycle of the output signal. The PWM circuit is enabled by the Modulate1 flag in the BACKLIGHT CC Control Register 50. To switch the backlight continuously on, enable the Backlight 1 flag and disable the Modulate 1

flag.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

The on-chip control circuit automatically generates wait states for interfacing to external display devices.

Figure 5. Parallel Display Interface

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Preliminary Technical Information

AD6426

Serial Display Interface

The serial display interface is compatible with display drivers by Motorola and Seiko-Epson. The display driver by Motorola uses an SPI serial bus which requires an inverted or delayed clock in comparison to the Seiko-Epson type display driver.

In the Motorola mode the data is delayed by one half clock cycle such that the data is driven on the rising edge of SCLK instead of on the falling edge.

The serial display interface consists of four pins; a serial data output (DISPD0), clock (DISPCLK), chip enable (DISPEN) and address (DISPA0). These pins are multiplexed with GPIO4, GPIO3, LCDCTL and DISPLAYCS.

Bit 1 (DISP) of the MEMIF H8 Peripheral Control Register 80 controls the configuration of the display interface. With this set to 0, the parallel display interface is used. Setting this bit to one enables the use of the serial display interface. This bit is set to 0 on reset.

Bit 4 (SERDISP MODE) of the SERDISPLAY/NMI H8 Peripheral Control Register 106 controls the serial display mode. The default setting is Seiko-Epson mode. To enable the Motorola mode the user must set the register bit to ONE.

Display Reset

No dedicated pin is used to reset the display sub system. It is recommended that the VBCRESET pin is used for this function by connecting the Reset input on the display and the Reset input on the VBC to the AD6426 VBCRESET pin. The VBC and display cannot be reset independently. However one of the GPIO pins can be used to reset the display separately.

Battery ID Interface

The AD6426 provides a single-wire interface compatible with the Dallas Semiconductor DS2434or DS2435 Battery Identification chip. The communication protocol supports three operations: RESET, READ and WRITE. These operations permit reading the present status off the battery and writing updated information to the ID chip. The interface is available as the BATID function multiplexed on the GPIO5 pin.

Bit 3 (DALLAS EN) of the MEMIF H8 Peripheral Control Register 80 controls the enabling of the battery ID interface module. Setting this bit to zero enables the interface, resetting the bit disables it. This bit is set to one on reset.

EVBC Interface

The AD6426 interfaces directly to the Enhanced Voiceband Baseband Converter AD6425 through the pins shown in Table

12.The communication is performed through three serial ports:

the Auxiliary Serial Port (ASPORT), the Baseband Serial Port (BSPORT) and the Voiceband Serial Port (VSPORT). Layer 1 software enables/disables the clock output in order to reduce system power consumption to a minimum if operation of the AD6425 is not required. Figure 6 shows the interface between the AD6426 and the AD6425 as well as to the AD6432 IF chip.

Table 12. EVBC Interface

Name I/O Function

CLKOUT O Clock Output to EVBC EVBCRESET O Reset Output to EVBC

ASPORT

ASDO O Data Output ASOFS O Output Framing Signal ASCLK O Clock Output ASDI I Data Input

BSPORT

BSDO O Data Output BSOFS O Output Framing Signal BSCLK I Clock Input BSIFS I Input Framing Signal BSDI I Data Input

VSPORT

VSDO O Data Output VSDI I Data Input VSCLK I Clock Input VSFS I Input/Output Framing Signal

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

CLKIN

RADIOPWRCTL

GPIO7

TXPHASE

ANTENNASELECT

CLKOUT VBCRESET

ASDO ASOFS

ASCLK ASDI

BSDO BSOFS BSCLK BSDI BSIFS

VSDO VSDI VSCLK VSFS

RXON

TXENABLE

GPIO2 GPIO1

SYNTHCLK

SYNTHDATA

SYNTHEN0

TXPA

BANDSELECT0 BANDSELECT1

MCLK RESET

ASDI ASDIFS ASDOFS ASCLK ASDO

BSDI BSDIFS BSCLK BSDO BSDOFS

MODE

VSDI VSDO VSCLK VSFS

AD6425

RXON TXON

AFC

BREFOUT

AGC

ITXP ITXN

QTXP QTXN

IRXP

IRXN

QRXP

QRXN

RAMP

13 MHz

XTAL

TCOR RFCLK

GREF

AD6432

GAIN

ITXP ITXN

QTXP QTXN

IRXP IRXN

QRXN QRXP

OSEN RXPU TXPU

MXOP

RFHI

RFLO

MODP

MODM

IFHI

FILTER

RMX_OUT FREF

TX_IN

DUALBAND

RF FRONT-END

RXON TXON GSM_ON DCS_ON

GSM_ON DCS_ON

DCLK DATA ENB

SYNTHESIZERS

TMX_OUT

LNA-IN

RFLO

VCOs

+

RFCLK

PAs &

Control

AD6426

TX

FILTERS

RX

Figure 6. EVBC and Radio Interface

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

Radio Interface

The AD6426 Radio Interface has been designed to support direct connection to the ADI IF-Chips AD6432, while providing full backwards compatibility to existing radio designs interfacing to the AD20msp410 and AD20msp415. Additionally the AD6426 Radio Interface supports radio architectures based on Siemens, TTP/Hitachi or Philips RF chipsets.

The Radio Interface of the AD6426 consists of 16 dedicated output pins listed in Table 13. Together with two optional general purpose I/O-pins they provide a flexible interface to a variety of radio architectures for both 900 MHz and 1800/1900 MHz operation.

Dual Band Control

To support dual band handsets BANDSELECT[1:0] signals are provided. BANDSELECT0 is multiplexed with GPIO[2], with the default function of this being GPIO[2]. BANDSELECT1 is multiplexed with GPIO[1], the default function being GPIO[1].

For Dual Band solutions requiring a single band select bit, the BANDSELECT0 function is enabled by asserting the BAND EN bit. In order to set BANDSELECT0 high/low and cause the radio module to operate in the appropriate band, the least significant bit (bit 0) of the relevant 32 bit register for Dynamic Synthesizer 1 must be written, i.e. different values may be set for Rx, Tx and Monitor but only for Dynamic Synthesizer 1.

BANDSELECT0 is sampled internally and is valid from the beginning of data serialization, both for on demand (immediate) loading and ordinary interrupt driven loading. The BANDSELECT0 signal will remain in this known state until the next time there is any serialization of data for Dynamic Synthesizer 1, when a new sample will be taken of the least significant bit of the 32 bit synthesizer register currently being serialized.

Full control is provided over the number of bits to be shifted out to the synthesizer and so it is intended that this bit count will always be less than 32 when using the BANDSELECT0 feature in order to prevent shifting the control bit out. BANDSELECT0 is gated with RADIO POWER CONTROL to ensure that whenever the RADIO is off, BANDSELECT0 is forced to a low state.

For Dual Band Solution requiring two band select bits, one for GSM900, and one for DCS1800, then both BANDSELECT0 and BANDSELECT1 are enabled by asserting both the BAND EN and DCSSEL EN bits. The BANDSELECT0 output is driven as in the single enable mode (described above), and the BANDSELECT1 output is the inverted output of the raw BANDSELECT0 output (prior to gating with RADIO POWER

CONTROL), gated with RADIO POWER CONTROL to force a low output when the Radio is off.

In order to increase the flexibility of the AD6426, three pins in the Radio Interface are multiplexed with GPO functions. The pins multiplexed are: SYTHEN1, AGCA and AGCB, with the default function being the Radio Interface.

The mode of these pins is controlled by the new ccGPO Channel Codec Register:

The GPO[n]Sel bit selects the function of the pin. Setting GPO[n]Sel to one will enable the pin to be controlled by the GPO[n] bit. The GPO[n]Sel bit will override any other pin function selection.

Generic Pins

The following three pins have the same functionality in all types of radio architectures:

RADIOPWRCTL This output signal is typically used to power down the oscillators and prescalers during Idle mode and is directly controlled by the Radio Power Control flag in the POWER CONTROL EXTERNAL CC Control Register 45.

Bit POWER CONTROL EXTERNAL CC Control

Register 45

1

Radio Power Control

Table 13. Radio Interface

Name I/O Function

GPIO1 O BANDSELECT1 GPIO2 O BANDSELECT0 RADIOPWRCTL O Radio Powerdown Control GPIO6 O VBIAS GPIO7 O ANTENNASELECT TXPHASE O Switches PLLs (Rx / Tx) TXENABLE O Transmit Enable TXPA O Power Amplifier Enable RXON O Receiver on CALIBRATERADIO O Radio Calibration SYNTHEN0 O Synthesizer 0 Enable SYNTHEN1 O Synthesizer 1 Enable SYNTHDATA O Synthesizer Port Serial Data SYNTHCLK O Synthesizer Port Clock AGCA O AGC Control A AGCB O AGC Control B

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

GPIO6 - VBIAS This general purpose I/O pin can be used to control the powering up/down of a separate voltage converter, which may be needed to provide the supply voltage for GaAs RF Power Amplifiers. Significant turn-on time of the voltage converter requires an early power-up signal, which is provided by GPIO6. This control is achieved entirely through a software driver, without hardware support. Since this function is not needed for all radio solutions, the GPIO pin can be used for other functions if not required.

GPIO7 - ANTENNASELECT This general purpose I/O pin can be used to switch between two different antennas, as required, when the mobile radio is used in conjunction with a car-kit with external antenna. This control is achieved entirely through a software driver, without hardware support. Since this function is not needed for all radio solutions, the GPIO pin can be used for other functions if not required.

Tx Timing Control

The following 5 radio interface pins serve different functions depending on the radio architecture:

TXPHASE The purpose of this signal is to switch PLLs between Rx and Tx modes. The signal is generated under control of the flags TXPHASE Enable and TXPHASE Polarity of the RADIO CONTROL CC Control Register 2.

Bit RADIO CONTROL CC Control Register 2

6

TXPHASE Polarity

Controls the polarity of the output TXPHASE. When set to 1, TXPHASE is active low; When set to 0, TXPHASE is active high.

3

TXPHASE Enable

Enables the output pin TXPHASE if set to 1.

0

Transmit Enable

Enables the output pin TXENABLE if set to 1.

TXPA This signal is used as a power amplifier (PA) enable and/or as a control signal for the PA control loop. This allows the PA to be isolated from the supply outside the Tx-slot to save current. In the PA control loop it can be used to control the dynamics of the loop. The flag Tx Pa Polarity in the TRAFFIC MODE CC Control Register 6, provides independent control for the TXPA signal.

Bit TRAFFIC MODE CC Control Register 6

7

Tx Pa Polarity; active high, when reset

TXPA is derived from the leading edge of TXENABLE signal shown in Figure 7.

TXENABLE

TXPA

T

D

T

W

Figure 7. Timing of TXPA

The parameter TD is a programmable delay (0 to 1023 Q

BIT

) to accommodate the EVBC settling time. TD is therefore a 10 bit value, accessed via the TXPA OFFSET 1 CC Control Register 73 and the TXPA OFFSET 2 CC Control Register 74.

Bit TXPA OFFSET 1 CC Control Register 73

1 : 0

TD (9:8)

Bit TXPA OFFSET 2 CC Control Register 74

7 : 0

TD (7:0)

The parameter TW is a programmable width (0 to 1023 Q

BIT

) which defines the PA enable time. TW is therefore a 10 bit value, accessed via the TXPA WIDTH 1 CC Control Register 75 and the TXPA WIDTH 2 CC Control Register 76.

In radios based on the TTP/Hitachi solution, this signal can be used to switch the VCO´s. In radios based on the Siemens or Philips solution, this signal

Bit TXPA WIDTH 1 CC Control Register 75

1 : 0

TW (9:8)

can be used for control switching PLLs, or band switching UHF PLLs.

TXENABLE

Bit TXPA WIDTH 2 CC Control Register 76

7 : 0

TW (7:0)

This signal enables the RF modulator and transmit chain including the PA, and controls the TXON-pin of the AD6425.

If TW is set to zero, then TXPA will be disabled.

The signal is generated under control of flag Transmit Enable of the RADIO CONTROL CC Control Register 2.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

Rx Timing Control

RXON The signal at the output pin RXON is generated by the function Receive Enable OR Monitor Enable of the RADIO CONTROL CC Control Register 2. It can be used to enable the RF receiver and controls the RXON-pin of the AD6425. In radios based on the Siemens solution this signal would be connected to the RXON1 input. Additional RXON derived signals are provided to support this solution.

Bit RADIO CONTROL CC Control Register 2

2

Monitor Enable

1

Receive Enable

CALIBRATERADIO The 4 modes of the Autocalibrate signal (Type 0 & 1, AutoCal on/off) are provided as required by the ADI or Philips solution and shown in Figure 8.

RXON

RxEnable Start (late)

RxEnableEndAutoCalibrateEnd

TYPE=0, AUTOCAL=0

TYPE=0, AUTOCAL=1

TYPE=1, AUTOCAL=0

TYPE=1, AUTOCAL=1

RxEnable Start (early)

Figure 8. Autocalibration

Synthesizer Control

The radio interface of the AD6426 supports 2 dynamic synthesizers, with each capable of downloading data on demand. The two Synthesizer Load Dynamic flags located in the SYNTH CONTROL CC Control Register 38, will set the synthesizer interface to load 3 consecutive long-words from Layer 1.

Bit SYNTH CONTROL CC Control Register 38

7

Synthesizer Enable Polarity

Selects the polarity of the SYNTHEN outputs. If set to 0, SYNTHEN is an active low signal, if set to 1, SYNTHEN is an active high signal.

6

Synthesizer Enable Type

Selects the active period of the SYNTHEN outputs. When set to 0, SYTHEN is active for all data values determined by SYNTHESIZER BIT COUNT; when set to 1, SYNTHEN goes active after the last bit for one SYNTHCLK period.

2

Synthesizer Load Dynamic 1 (SLD1)

1

Synthesizer Load Dynamic 0 (SLD0)

When using the Configure Dynamic Synthesizer flag in the SYNTH BIT COUNT CC Control Register 37, the downloadon-demand function is applied to the synthesizer selected by SLD0 or SLD1.

Bit SYNTH BIT COUNT CC Control Register 37,

6

Configure Dynamic Synthesizer

The flags Autocalibrate and Calibrate Radio in the SYSTEM CC Control Register 0 are OR´ed and connected to the output pin CALIBRATERADIO.

Each dynamic synthesizer is comprised of three 32-bit word registers, for the Rx, Tx and Monitor phases. The download on demand uses the Rx register only for the respective synthesizer.

Bit the SYSTEM CC Control Register 0

7

Autocalibrate

Enables the autocalibrate function if set to 1;

3

Calibrate Radio

Bit SYNTHESIZER 1 CC Control Register 40

7 : 0 Synthesizer (31:24)

Bit SYNTHESIZER 2 CC Control Register 41

The type of autocalibration is set in the TRAFFIC MODE CC Control Register 6

Bit TRAFFIC MODE CC Control Register 6

3

Autocalibration Type

In radios based on the Siemens chipset, this signal would connect to the RXON2 input. The required behavior is enabled by selecting the Type 1 CalibrateRadio function.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

7 : 0 Synthesizer (23:16)

Bit SYNTHESIZER 3 CC Control Register 42

7 : 0 Synthesizer (15:8)

Bit SYNTHESIZER 4 CC Control Register 43

7 : 0 Synthesizer (7:0)

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Preliminary Technical Information

The two dynamic synthesizers are programmable as follows, while each synthesizer may be independently disabled, through the two Disable Synthesizer flags in the SYNTHESIZER PROGRAM CC Control Register 72.

Bit SYNTHESIZER PROGRAM CC Control Register

72

5

Disable Synthesizer 1

4

Disable Synthesizer 0

3

Synthesizer Enable Select

2

Synthesizer Mode

1 : 0

Pin Mode (1:0)

SYNTHEN0 : 1 The AD6426 provides enable signals for two independent synthesizers. These signals are available at the output pins SYNTHEN0 and SYNTHEN1. The polarities of these signals are individually programmable; i.e. bit 7 of CC Control Register 38 is applied to the synthesizer selected by either bit 2 or bit 1 of the same register.

SYNTHDATA and SYNTHCLK Three Modes can be selected to support different radio architectures. The selection of the Pin-Mode is done by the two Pin Mode flags in the SYNTHESIZER PROGRAM CC Control Register 72 as shown in Table 14.

Table 14. Pin Mode

Bit 1 Bit 0 Mode

0 0 Mode 1 (default) 0 1 Mode 1 1 0 Mode 2 1 1 Mode 3

AD6426

Bit SYNTH CONTROL CC Control Register 38

5

Synthesizer Clock Polarity

Selects the edge, on which synthesizer data and enable will be clocked out. Negative edge, when set to 0; positive edge, when set to 1.

0

Synthesizer Clock; selects the frequency of SYNTHCLK output. SYNTHCLK = 1.625 MHz if set to 0 (default), SYNTHCLK = 6.5 MHz if set to 1.

In Modes 2 and 3, the outputs of these two pins are multiplexed with flags of the internal DSP as indicated in Table 16. The function of DSPFLAG1 ô Synthesizer Data is defined as: The output is that of DSPFLAG1 except when the synthesizer interface is active. In this case the synthesizer output has priority. The same applies to DSPFLAG2 ô Synthesizer Clock.

Table 16. Pin Function in Modes 2 and 3

AD6426 Pin Function

SYNTHDATA DSPFLAG1 ô Synthesizer Data SYNTHCLK DSPFLAG2 ô Synthesizer Clock

AGC Control

AGC programming is achieved in one of three ways:

The first is a gain select approach, whereby the DSPFLAG0 and DSPFLAG1 are used as a 2-bit gain selector (AGCA, AGCB). This is available in Mode 1 and the flags are under direct control of the internal DSP and are timing independent of the synthesizer interface.

Table 17. Pin Function in Mode 1

The default is Mode 1, which supports TTP/Hitachi Bright and Philips radio architectures. Mode 2 also supports a Philips architecture, while Mode 3 supports a Siemens architecture. In Mode 1, the pins SYNTHDATA and SYNTHCLK have their original functionality; i.e. SYNTHDATA is the data output and SYNTHCLK is the clock output of the serial synthesizer interface. Clock polarity and frequency are programmed in the SYNTH CONTROL CC Control Register 38.

Table 15. Pin Function in Mode 1

AD6426 Pin Function

SYNTHDATA Synthesizer Data SYNTHCLK Synthesizer Clock

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

The second is through the DSP combined with the serial synthesizer interface, as defined in Mode 2. The function of DSPFLAG0 ô SYNTHEN1 is defined as: The output is that of DSPFLAG0 except when the synthesizer interface is active.

To support the Philips chipset whereby the AGC and the PLL are programmed over the same enable line, the AGCA pin is multiplexed to provide a SYNTHEN1 gated with DSPFLAG0. This pin would be wired instead of the SYNTHEN1 pin. Since the DSP would program the AGC during RXON, and the synthesizers are reprogrammed following the end of the active phase, no conflict can occur.

AD6426 Pin Function

AGCA DSPFLAG0 AGCB DSPFLAG1

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Preliminary Technical Information

In Modes 2 and 3, PLL programming occurs on any of Rx, Tx and MonEnableEnd through the synthesizer interface. Additionally, AGC programming, controlled via the DSP, is performed during RXON.

Table 18. Pin Function in Mode 2

AD6426 Pin Function

AGCA DSPFLAG0 ô SYNTHEN1 AGCB DSPFLAG1

The third mode is for support of the Siemens chipset, providing an independent AGC enable from SYNTHEN using the DSP Flag 0. The same serial interface constraints from Mode 2 apply. Additionally, the output OCE is provided. This is the Offset Correction Enable, derived from the RxEnableStartEarly and RxEnableStartLate timing signals as shown in Figure 9.

Table 19. Pin Function in Mode 3

AD6426 Pin Function

AGCA DSPFLAG0 AGCB OCE

AD6426

RxEnableStartEarly

RxEnableStartLate

RXON

OCE

Figure 9. OCE Signal

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 26 - Confidential Information

Preliminary Technical Information

AD6426

TEST INTERFACE

The AD6426 provides a complete JTAG test interface. The functionality of these pins are shown in Table 20. Furthermore, these pins can assume a different functionality described in detail in the chapter MODES OF OPERATION.

Table 20. Test Interface

Name I/O Function

JTAGEN

I JTAG enable (internal pull

down resistor)

TCK TMS TDI TDO

I JTAG test clock input I JTAG test mode select I JTAG test data input

O JTAG test data output

JTAG Port

The AD6426 provides full IEEE 1149.1 compliance. The JTAG Port must be run at a frequency of 5 MHz or less.

The JTAG Port is explicitly enabled through JTAGEN. When disabled, the corresponding pins are re-used for the AD6426 Feature Modes. The JTAG interface implements four registers shown in Figure 10. The content of the Instruction register selects one of these four registers.

Boundary Register

3161

162 2

163 1

T D I

8

Bypass Register

Bist Register

7

6

Instruction Register

1

T D O

1

2

3

45

14

23

Table 21. JTAG Instructions

Instr. Register

Code Comments

4 3 2 1 0 0 0 0 ExTest Public Instruction

0 0 0 1 Clamp Optional Public Instruction 0 0 1 0 Sample/PreLoad Public Instruction

0 0 1 1 DoBist

0 1 0 0 0 1 0 1

0 1 1 0 Mode D

Private Instruction Engineering Mode Test

Reserved

Private Instruction

H8 Emulation 0 1 1 1 Reserved 1 0 0 0 -

1 1 1 0

Bypass

1 1 1 1 Bypass

Public Instruction

Selects Mode A

Public Instruction

Selects Mode A (default)

ExTest Instruction

The ExTest instruction is used to force input or output conditions on the boundary scan cell.

Clamp Instruction

This optional public instruction is similar to the Bypass instruction, except that once loaded, it will force the values held in the boundary scan chain onto the corresponding outputs of the device. This enables all output and bidirectional pads to be fixed, allowing other parts on the PCboard to be tested without interference from the AD6426, while at the same time selecting the Bypass register for the shortest possible scan path.

All input activity to the AD6426 will be ignored during this time, since all inputs are driven from the preloaded values in the boundary scan chain. Typically therefore this instruction would be preceded by the Sample/Preload instruction. This instruction is only valid during the normal operation of the AD6426; i.e. in Mode A.

Figure 10. JTAG Registers

The instruction register contains 4 bits, and supports the instructions listed in Table 21.

Sample/Preload Instruction

The Sample/Preload instruction is fully IEEE compliant.

Boundary Register

The boundary cell structure is based on the I/O definition in Mode A, and hence pins which are outputs only in this mode,

Instruction register values 01XX all select the bypass register when JTAG compliance is enabled. Values 00XX control the AD6426 I/O as defined in Mode A, and therefore should not

but become inputs in another mode, do not support input scan cells, and vice versa. Table 22 shows the complete Boundary register.

be used in any other mode.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 27 - Confidential Information

Preliminary Technical Information

#

Cell Name

1

SIMCARD

B

#

Cell Name

44

DATA8

O

#

Cell Name

87

USCCTS

I

#

Cell Name

130

GPIO6

O

Table 22. Boundary Scan Path

TDO

AD6426

2 SIMCARD O 3 SIMCARD I 4 SIMCLK O 5

SIMDATAOPEN

6 SIMDATAOP O 7 SIMDATAIP I 8 SIMRESET O

9 SIMPROG B 10 SIMPROG O 11 SIMPROG I 12 SIMSUPPLY O 13

GPIO0EN

14 GPIO0 O 15 GPIO0 I 16

GPIO1EN

17 GPIO1 O 18 GPIO1 I 19 WR O 20 FLASHPWD B 21 FLASHPWD O 22 FLASHPWD I 23

DATA0 : 7EN

24 DATA0 O 25 DATA0 I 26 DATA1 O 27 DATA1 I 28 DATA2 O 29 DATA2 I 30 DATA3 O 31 DATA3 I 32 DATA4 O 33 DATA4 I 34 DATA5 O 35 DATA5 I 36 DATA6 O 37 DATA6 I 38 DATA7 O 39 DATA7 I 40 LBS O 41 UBS O 42 RD O 43

DATA8 : 15 EN

Notes: The boundary scan supports only pin functionality and signal directions of Normal Mode (A); see chapter “Modes of Operation”. Cells can be input (I) or output cells (O) which correspond to the pins with the same name, or internal control cells shown in ITALIC. Control cells are either bi-directional control cells (B), or tri-state output control cells (T). When type-B cells are loaded with 0, the referred pins become driving output pins, otherwise the pins are inputs. When type-T cells are loaded with 1, the referred pin will be tri-stated, otherwise the pin is an output.

T

B

45 DATA8 I 46 DATA9 O 47 DATA9 I 48 DATA10 O 49 DATA10 I 50 DATA11 O 51 DATA11 I 52 DATA12 O 53 DATA12 I 54 DATA13 O 55 DATA13 I 56 DATA14 O 57 DATA14 I 58 DATA15 O 59 DATA15 I 60 ROMCS O 61 RAMCS O 62 ADD0 O 63 ADD1 O 64 ADD2 O 65 ADD 3 O 66 ADD4 O 67 ADD5 O 68 ADD6 O 69 ADD7 O 70 ADD8 O 71 BOOTCODEEN I 72 ADD9 O 73 ADD10 O 74 ADD11 O 75 ADD12 O 76 ADD13 O 77 ADD14 O 78 ADD15 O 79 ADD16 O 80 ADD17 O 81 ADD18 O 82 ADD19 O 83 ADD20 O 84 USCRTS I 85

USCCTSEN

86 USCCTS O

88

USCTX

89

USCRXEN

90 USCRX O 91 USCRX I 92 USCRI I 93

GPIO9EN

94 GPIO9 O 95 GPIO9 I 96

GPIO8EN

97 GPIO8 O 98 GPIO8 I

99 IRQ6 I 100 RESET I 101 KEYPADROW0 I 102 KEYPADROW1 I 103 KEYPADROW2 I 104 KEYPADROW3 I 105 KEYPADROW4 I 106 KEYPADROW5 I 107

KEYPADCOL0EN

108 KEYPADCOL0 O 109

KEYPADCOL1EN

110 KEYPADCOL1 O 111

KEYPADCOL2EN

112 KEYPADCOL2 O 113

KEYPADCOL3EN

114 KEYPADCOL3 O 115 GPCS O 116 OSC13MON O 117 BACKLIGHT O 118 DISPLAYCS O 119 LCDCTL O 120

GPIO3EN

121 GPIO3 O 122 GPIO3 I 123

GPIO4EN

124 GPIO4 O 125 GPIO4 I 126

GPIO5EN

127 GPIO5 O

B

128 GPIO5 I 129

GPIO6EN

O B

B

T

B

131 GPIO6 I 132

GPIO7EN

133 GPIO7 O 134 GPIO7 I 135 CLKIN I 136 TXENABLE O 137 RADIOPWRCTL O 138 CALIBRATERADIO O 139 TXPA O 140 AGCB O 141 AGCA O 142 SYNTHCLK O 143 SYNTHDATA O 144 SYNTHEN0 O 145 SYNTHEN1 O 146 PWRON O 147 OSCIN I 148

GPIO2EN

149 GPIO2 O 150 GPIO2 I 151 TXPHASE O 152 ASDO O 153 ASOFS O 154 ASDI I 155 ASCLK O 156 BSCLK I 157 BSDI I 158 BSIFS I 159 BSOFS O 160 BSDO O 161 CLKOUT O 162 RXON O 163 VBCRESET O 164 VSCLK I 165 VSDI I 166 VSFS I 167

VSDOEN

168 VSDO O 169

EEPROMDATAEN

170 EEPROMDATA O 171 EEPROMDATA I 172 EEPROMCLK O 173 EEPROMEN O TDI

B

T

B

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

DoBist Instruction

This instruction is provided to support engineering mode test. When the instruction is loaded, it will generate an NMI to the H8 processor. This will enable special software to be executed which can be used to test the operation of the device. During this time, the 8-bit DoBist register is selected for scan, enabling a result code for the test to be scanned out. For the duration of the test, all I/O retain their normal function. The test program must therefore cope with undefined inputs, but is able to communicate with other devices to extend the test procedure. This allows the NMI to be generated during normal phone operation. This instruction is only valid during the normal operation of the AD6426; i.e. in Mode A.

Mode D Instruction

This instruction switches the AD6426 into the H8 Emulation Mode (Mode D). It is only valid to switch modes while the AD6426 is held in reset.

Reset

To comply with the IEEE specification, the JTAG interface will be forced to reset whenever the JTAG Port is re-enabled. This will select the Bypass register and force the AD6426 into the Normal Mode (Mode A).

Debug Port Interface

In normal (voice-service) operation, the Universal Serial Port can be used as a monitor port, which allows monitoring internal operation of the channel codec section. However, during the use of GSM Data Services, the USC is engaged in data communication and cannot be used for monitoring. The 6426 provides a Debug Port to enable monitoring and debugging in this case. This is in the form of a simple 2 pin UART. The communication format is fixed at 9600 baud, 8 data bits, one stop bit, no parity, asynchronous communication. Operation of the Debug Port is under control of the Layer 1 software.

Two of the GPIO pins can be programmed to be used as the Debug Port:

Pin Name New Function

GPIO8 TXDATA GPIO9 RXDATA

The serial port can be enabled by asserting the flag DATA SERIAL PORT SELECT in CC Control Register 7.

MODES OF OPERATION

The AD6426 can be switched between two main operating modes, using instructions downloaded via the JTAG interface. This must be done while the AD6426 is held in reset. Once the instruction load is completed the pins are immediately set to reflect the new operating mode. Table 23 shows these modes. The modes B and C are reserved and are not available to the user.

Table 23. Modes of Operation

Mode of Operation A Normal Mode B Reserved C Reserved D Emulation Mode (H8)

Normal Mode (Mode A)

This mode is used during normal operation of the AD6426. All JTAG-pins have their normal functionality, when enabled by JTAGEN and can be used for production test.

Emulation Mode (Mode D)

Selecting Mode D allows the emulation of the internal H8 processor. In this Mode several pins assume a new functionality or are no longer available. Table 24 lists all pins, which have different functionality or direction in the Emulation Mode compared to the Normal Mode.

In Emulation Mode the internal DSP remains active but will not have access to external memory devices. The internal H8 will be switched into hardware stand-by mode; the LCD controller interface and Boot Code ROM remain functional.

CCIRQ0 : 2 are channel codec interrupts to the emulator. CCIRQ2 is defined in CC Control Registers 77 and 78.

Table 24. Pin Functions in Mode D

Pin Name in

Normal Mode (A)

IRQ6 CCCS I ADD19 : 16 - TRI ADD15 : 0 ADD15 : 0 I DATA7 : 0 - TRI RD RD I HWR HWR I LWR - TRI RAMCS - TRI SIMCARD - TRI SIMDATAOP - TRI - O SIMDATAIP - I SIMCLK - O SIMRESET CCIRQ0 O SIMPROG CCIRQ2 O SIMSUPPLY CCIRQ1 O GPIO9 H8CS0 I GPIO8 CCGPIO8 I/O -

Pin Function in

Emulation Mode (D)

TRI

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

Pin Name in

Normal Mode (A)

GPO10 WAIT O GPCS - TRI FLASHPWD Forced High O DISPLAYCS DISPLAYCS I/O GPIO0 Reserved O GPIO1 Forced High/

BANDSELECT1

GPIO2 Forced High/

BANDSELECT0 GPIO3 Forced High/DISPA0 O GPIO4 Forced High/DISPCLK O GPIO5 Forced High/BATID O GPIO6 Reserved O GPIO7 Reserved TRI

FLASHPWD can also be used as WAIT input, in which case it is routed through and gated with the LCDWAIT to be output on the WAIT output pin GPO10/ADD20. If the on-chip LCD controller is not used in emulation, then ADD20 pin can be used as ccGPO(10).

FEATURE MODES

Two additional features can be enabled under software control. These are; DAI Mode (Digital Audio Interface) and HSL Mode (High Speed Logging) used to monitor the operation of the on-chip DSP.

DAI Mode

This mode is selected during type approval, when Digital Audio Interface is required. To enable this feature, the JTAGEN pin must be de-asserted, upon which the JTAG pins TMS, TDI and TDO are re-assigned as shown in Table 25. The default feature mode thus enabled is DAI. In addition, the voiceband serial port signals are made available through the USC to facilitate testing of the speech transcoder as well as the phone’s acoustic properties. The DAI box interface product is available upon request from Analog Devices.

Table 25. DAI Mode

AD6426 Pin Function in DAI Mode I/O

VSCLK MSCLK I VSFS MSFS I VSDO MSRXD O VSDI MSTXD I TMS DAIRESET O TDI DAI1 O TDO DAI0 I

Pin Function in

Emulation Mode (D)

O

High Speed Logging

This mode is selected for monitoring the operation of the internal DSP during the development and field test phase. When the JTAGEN pin is de-asserted and the HSLEnable flag in the TESTADDRESS CC Control Register 33 is set, a high speed logging port is mapped on the JTAG- and EEPROM pins as shown in Table 26. The internal DSP must then be instructed via Layer 1 to output logging messages onto the HSL pins.

Table 26. HSL Mode

AD6426 Pin Function in HSL Mode TCK HSLDO0 O

TMS HSLDO1 O TDO HSLDO2 O TDI HSLDO3 O EEPROMCLK HSLCLK O EERPROMEN HSLFS O

The High Speed Logging port (HSL) is an unidirectional port which supplies nibble-wide synchronous data from the internal DSP to an external data logger. The data logger will be connected to a PC which will be responsible for presenting the data to the user. The PC is able to configure the HSL via either one of the serial interfaces.

The HSL is enabled as follows:

• The JTAGEN pin is set to 0

• The H8 enables the HSL logic by setting the HSLEnable

flag

• On a command issued through the Data Interface, the H8

configures the DSP software to enable HSL

The HSLEnable flag is used to deselect DAIRESET in favor of the HSL onto the JTAG pins, and enable the HSL onto EEPROMCLK and EEPROMEN.

The DSP sends data over the port by writing to address 0x000 in the Data Memory map. The writes are full 16-bit writes, and can occur at a maximum rate of one write per five 39 MHz clock cycles. Five cycles allow time for the HSL circuit to serialize the 16 bits of data onto the 4-bit data bus with one cycle to spare. HSLFS is used to frame the valid data nibbles. Note that HSCLK is free-running , and that HSLFS and HSLDO3-0 are synchronized to the rising edge of HSCLK.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 30 - Confidential Information

Preliminary Technical Information

The mapping of the DSP data bits to the HSL port bits is:

Table 27. Mapping of HSL Port Nibbles

AD6426

HSCLK

HSLFS

HSLDO (3:0)

DSP

Data Bits

HSLDO

Nibble

23 : 20 1 19 : 16 2 15 : 12 3

11 : 8 4

1 2 3 4 1

Figure 11. HSL Timing

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 31 - Confidential Information

Preliminary Technical Information

AD6426

SPECIFICATIONS

Parameter

TA , Ambient Operating Temperature -25 +85 °C VDD , Supply Voltage 2.4 3.3 Volt IDD , Supply Current (Idle Mode) TBD mA @ VDD = 3.0 V IDD , Supply Current (Talk Mode) TBD mA @ VDD = 3.0 V f

, Clock Input Frequency 13 MHz

CLKIN

V

, Clock Input Voltage 0.250 V

CLKIN

R

, Clock Input Resistance (see Note) 19.5

CLKIN

Logic Inputs

VIH , Input High Voltage VDD - 0.8 Volt VIL , Input Low Voltage 0.8 Volt IIH , IIL Input Current -10 10 CIN , Input Capacitance TBD pF

Logic Outputs

VOH , Output High Voltage VDD - 0.4 VOL , Output Low Voltage 0.4 I

, Low Level Output 3-State Leakage Current -10 10

OZL

I

, High Level Output 3-State Leakage Current -10 10

OZH

Min Typ Max Units Comments

sine wave, ac-coupled

PP

kΩ

µA

µA µA

sine wave, ac-coupled

General

Note:

The input impedance of the clock buffer is a function of the voltage and waveform of the clock input signal. For sinusoidal input signals the typical input impedance can be calculated by: RIN [kΩ] = V

CLKIN

[VPP] × 78

ABSOLUTE MAXIMUM RATINGS

VDD to GND ............................................. -0.3V to + TBD V

Digital I/O Voltage to GND................... -0.3V to VDD + 0.3V

Operating Temperature Range ........................ -25°C to +85°C

LQFP Package

Storage Temperature Range.......................... -65°C to +150°C

Maximum Junction Temperature ................................ +150°C

QJA Thermal Impedance..............................................28°C/W

Lead temperature, Soldering

Vapor Phase (60 sec)........................................... +215°C

Infrared (15 sec).................................................. +220°C

Note:

Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. TA= +25°C unless otherwise stated.

ESD SUSCEPTIBILITY

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 volts, which readily accumulate on the human body and on test equipment, can discharge without detection. Although this device features proprietary ESD protection circuitry, permanent damage may still occur on this device if it is subjected to high energy electrostatic discharges. Therefore, proper precautions are recommended to avoid any performance degradation or loss of functionality.

PBGA Package

Storage Temperature Range.......................... -65°C to +150°C

Maximum Junction Temperature ................................ +150°C

QJA Thermal Impedance..............................................30°C/W

Lead temperature, Soldering

Vapor Phase (60 sec)........................................... +215°C

Infrared (15 sec).................................................. +220°C

WARNING!

ESD SENSITIVE DEVICE

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

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Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Parameter Comment Min Typ Max Units

t

1

t

2

t

3

t

4

t

5

t

6

To Ouput

CL

50pF

CLKIN Period (see Figure 13) 76.9 ns CLKIN Width Low 30 45 ns CLKIN Width High 30 45 ns CLKOUT Period (see Figure 14) 76.9 ns CLKOUT Width Low 30 45 ns CLKOUT Width High 30 45 ns

t

100 µA I

t

OL

CLKIN

+2.1V

3

Figure 13. Clock Input

1

t

2

Clocks

100 µA I

OH

Figure 12. Load Circuit for Timing Specifications

CLKOUT

t

6

4

Figure 14. Clock Output

t

5

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 33 - Confidential Information

Preliminary Technical Information

AD6426

TIMING SPECIFICATION

Memory Interface

Parameter Comment ( Timing for 3-state access, see Figure 15 ) Min Max Units

Timing Requirement

t

10b

t

12b

t

17

t

19

Switching Characteristic

t

10a

t

11

t

12a

t

13

t

14

t

15

t

16

t

18

Control Processor read chip select to data valid 158 ns Control Processor read address to data valid 162 ns Control Processor read enable to data valid 129 ns Control Processor data hold 0 ns

Control Processor write chip select setup 10 ns Control Processor chip select hold 5 ns Control Processor write address setup 10 ns Control Processor address hold 5 ns Control Processor write pulse width 111 ns Control Processor data setup 68 ns Control Processor data hold 15 ns Control Processor read pulse width 145 ns

WRITE

CS

ADD 15:0

HWR/LWR

DATA15:0

READ

CS

ADD15:0

RD

DATA7:0

t

10a

t

12a

t

14

t

15

t

10b

t

12b

t

17

t

18

Figure 15. Memory Interface Timing

t

11

t

13

t

16

t

13

t

11

t

19

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 34 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Radio Interface

Parameter Comment ( see Figure 16 ) Min Max Units

t

40

t

41

t

42a

t

42b

t

43a

t

43b

t

44

SYNTHCLK

SYNTHDATA

SYNTHEN[0:1] TYPE 0

Synthesizer clock period 152 615 ns Synthesizer clock high 76 307 ns Synthesizer data setup 60 85 ns Synthesizer data hold 60 85 ns Synthesizer enable delay for Type 0 60 85 ns Synthesizer enable delay for Type 1 -15 10 ns Synthesizer enable width for Type 1 50 90 ns

t

40

t

42a

41

0 1 2 n-2 n-1 n

t

43a

42b

t

40

41

SYNTHCLK

t

42a

SYNTHDATA

0 1 2 n-2 n-1 n

t

42b

t

43b

SYNTHEN[0:1] TYPE 1

t

44

Figure 16. Synthesizer Interface Timing

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 35 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

High Speed Logging Interface

Parameter Comment ( see Figure 17) Min Typ Max Units

t

50

t

51

t

52

t

53

t

54

HSCLK Period 25.6 ns HSCLK Width Low 8.3 ns HSCLK Width High 8.3 ns HSCLK to HSLDO 0 15 ns HSCLK to HSLFS 0 15 ns

t

50

t

51

52

HSCLK

t

54

HSLFS

HSLDO3:0

t

53

1 2 3 4 1

Figure 17. High Speed Logging Interface

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 36 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Data Interface

Parameter Data Interface (see Figure 18) Min Typ Max Units

t

60

t

61

t

62

t

63

Clock Period ns Transmit Data Delay time 100 ns Receive Data Setup time 100 ns Receive Data Hold time 0 ns

t

60

MONCLK

t

61

MONTX

MONRX

t

62

Figure 18: Data Interface Timing

t

63

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 37 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Test Interface

Parameter JTAG Port Min Typ Max Units

t

64

t

65

t

66

*

Note: These parameters have been functionally verified, but not tested.

TCK Period TCK Width Low TCK Width High

*

200 ns

80 120 ns 80 120 ns

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 38 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

EVBC Interface ASPORT

Parameter Comment (see Figure 19) Min Typ Max Units

t

70

t

71

t

72

t

73

t

74

t

75

ASCLK period 384 ns ASOFS setup time before ASCLK high 20 ns ASOFS hold time after ASCLK high 20 ns ASDI setup time before clock low 20 ns ASDI hold time after clock low 20 ns ASDO delay after clock high 0 20 ns

t

70

ASCLK (O)

t

71

t

72

ASOFS (O)

ASDI (i)

ASDO (O)

t

73

74

D9 D8 D7 A2 A1 A0

t

75

D9 D8 D7 A2 A1 A0

Figure 19. EVBC Interface ASPORT Timing

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 39 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

EVBC Interface BSPORT

Parameter Comment (see Figure 20) Min Typ Max Units

t

80

t

81

t

82

t

83

t

84

t

85

t

86

BSCLK period 76.9 ns BSIFS setup time before BSCLK low 4 ns BSIFS hold time after BSCLK low 7 ns BSDI setup time before BSCLK low 4 ns BSDI hold time after BSCLK low 7 ns BSOFS delay after BSCLK high 15 ns BSDO delay after BSCLK high 0 15

t

80

BSCLK (I)

BSIFS (I)

BSDI (I)

BSOFS (O)

BSDO (O)

t

81

t

82

t

83

t

84

D15 D14

t

85

t

86

D15 D14

Figure 20. EVBC Interface BSPORT Timing

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 40 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

EVBC Interface VSPORT

Parameter Comment (see Figure 21) Min Typ Max Units

t

90

t

91

t

92

t

93

t

94

t

95

VSCLK period 76.9 ns VSFS setup time before VSCLK low 4 ns VSFS hold time after VSCLK low 7 ns VSDI setup time before VSCLK low 4 ns VSDI hold time after VSCLK low 7 ns VSDO delay after VSCLK high 0 15 ns

t

90

VSCLK (I)

t

91

92

VSFS (I)

VSDI (I)

VSDO (O)

t

93

94

D15 D14

t

95

D15 D14 D13

Figure 21. EVBC Interface VSPORT Timing

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 41 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Parallel Display Interface

Parameter Comments (see Figure 22) Min Typ Max Units

t

100

t

101

t

102

LCD Control low width (6 CLKIN cycles) 462 ns LCD Control high width (6 CLKIN cycles) 462 ns LCD Control high width read extension (1 CLKIN

77 ns

cycle)

ADD 19:O

DISPLAYCS

RD or HWR

LCDCTL

t

100

Figure 22. Parallel Display Interface Timing

t

101

t

102

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 42 - Confidential Information

Preliminary Technical Information

AD6426

TIMING CHARACTERISTICS

Parameter Comment (see Figure 23) Min Typ Max Units

t

103

t

104

t

105

t

106

t

107

DISP_CLK Period t1*8 DISP_CS Low to Data Valid 0.25 *t DISP_CLK Low to Data Valid 5 ns DISP_CLK Low to DISP_CS high 0.25 *t Data Valid to DISP_CLK High 0.25 *t

t

103

or t1

Serial Display Interface

*16 ns

+ 5 ns

103

- 5 ns

103

DISP_CLK

//

106

DISP_D0

DISP_CS

t

107

D7 D6 D0

t

104 t

t

105

ns

DISP_A0

Figure 23. Serial Display Interface

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 43 - Confidential Information

Preliminary Technical Information

PACKAGING

LQFP Pin Locations

# Pin Name # Pin Name # Pin Name # Pin Name

1 USCRI (MONCLK) 37 DATA12 73 TDI 109 AGCB 2 USCRX (MONRX) 38 DATA11 74 JTAGEN 110 TXPA 3 USCTX (MONTX) 39 DATA10 75 EEPROMEN 111 CALIBRATERADIO 4 USCCTS (ADD20) 40 DATA9 76 EEPROMCLK 112 RADIOPWRCTL 5 USCRTS (GPIO9) 41 DATA8 77 EEPROMDATA 113 TXENABLE 6 GPO10 (GPIO8) 42 RD 78 GND 114 GND 7 ADD19 43 GND 79 VDD 115 CLKIN 8 ADD18 44 VDD 80 VSDO 116 VDD

9 ADD17 45 UBS (HWR) 81 VSFS 117 GPIO7 10 ADD16 46 LBS (LWR) 82 VSDI 118 GPIO6 11 ADD15 47 DATA7 83 VSCLK 119 GPIO5 12 ADD14 48 DATA6 84 VBCRESET 120 GPIO4 13 ADD13 49 DATA5 85 RXON 121 GPIO3 14 ADD12 50 DATA4 86 CLKOUT 122 LCDCTL 15 ADD11 51 DATA3 87 BSDO 123 DISPLAYCS 16 GND 52 DATA2 88 BSOFS 124 BACKLIGHT 17 VDD 53 DATA1 89 BSIFS 125 VDD 18 ADD10 54 DATA0 90 BSDI 126 GND 19 ADD9 55 GND 91 BSCLK 127 OSC13MON (GPPWRCTL) 20 BOOTCODE (GND) 56 VDD 92 ASCLK 128 GPCS 21 ADD8 57 FLASHPWD 93 ASDI 129 KEYPADCOL3 22 ADD7 58 WR (GPIO2) 94 ASOFS 130 KEYPADCOL2 23 ADD6 59 GND 95 ASDO 131 KEYPADCOL1 24 ADD5 60 VDD 96 TXPHASE 132 KEYPADCOL0 25 ADD4 61 GPIO1 97 GPIO2 (CPPWD) 133 GND 26 ADD3 62 GPIO0 98 VDD (GND) 134 KEYPADROW5 27 ADD2 63 SIMSUPPLY 99 GND (VDD) 135 KEYPADROW4 28 ADD1 64 SIMPROG 100 OSCIN (SAMCS) 136 KEYPADROW3 29 ADD0 65 SIMRESET 101 OSCOUT (CPFS) 137 KEYPADROW2 30 RAMCS 66 SIMDATAIP 102 VDDRTC (CPDO) 138 KEYPADROW1 31 GND 67 SIMDATAOP 103 PWRON (CPDI) 139 KEYPADROW0 32 VDD 68 SIMCLK 104 SYNTHEN1 140 VDD 33 ROMCS 69 SIMCARD 105 SYNTHEN0 141 RESET 34 DATA15 70 TCK 106 SYNTHDATA 142 IRQ6 35 DATA14 71 TMS 107 SYNTHCLK 143 GPIO8 (BOOTCODE) 36 DATA13 72 TDO 108 AGCA 144 GPIO9 (H8MODE)

AD6426

Note: pin names in ( ) are the AD6422 pin names from the AD20msp415 chipset.

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 44 - Confidential Information

Preliminary Technical Information

C11

SYNTHEN0

F11

ASOFS

J11

VSFS

M11

TCK

C12

OSCIN

F12

ASCLK

J12

VSDI

M12

TDI

AD6426

PBGA Pin Locations

# Pin Name # Pin Name # Pin Name # Pin Name

A1 USCR1 D1 ADD16 G1 BOOTCODE K1 GND A2 IRQ6 D2 ADD17 G2 ADD7 K2 ROMCS A3 KEYPADROW0 D3 USCCTS G3 ADD9 K3 DATA10 A4 KEYPADROW4 D4 GPIO8 G4 ADD4 K4 DATA9 A5 KEYPADCOL1 D5 VDD G5 ADD1 K5 VDD A6 GPCS D6 GND G6 ADD11 K6 DATA6 A7 VDD D7 BACKLIGHT G7 DATA3 K7 GND A8 VDD D8 GPIO5 G8 ASDI K8 VDD A9 CLKIN D9 SYNTHCLK G9 BSOFS K9 SIMRESET A10 GND D10 PWRON G10 VBCRESET K10 EEPROMEN A11 TXPA D11 OSCOUT G11 BSDI K11 EEPROMDATA A12 AGCB D12 VDD G12 BSIFS K12 GND B1 USCRX E1 ADD13 H1 ADD6 L1 DATA15 B2 GPIO9 E2 ADD12 H2 ADD3 L2 DATA13 B3 RESET E3 ADD18 H3 ADD5 L3 DATA8 B4 KEYPADROW1 E4 ADD15 H4 VDD L4 UBS B5 KEYPADROW5 E5 ADD19 H5 GND L5 DATA4 B6 KEYPADCOL2 E6 KEYPADROW3 H6 FLASHPWD L6 DATA0 B7 GND E7 KEYPADCOL3 H7 SIMPROG L7 WR B8 GPIO3 E8 LCDCTL H8 VDD L8 GPIO0 B9 GPIO7 E9 SYNTHEN1 H9 VSCLK L9 SIMDATAIP B10 TXENABLE E10 TXPHASE H10 VSDO L10 SIMCARD B11 AGCA E11 GND H11 CLKOUT L11 TDO B12 SYNTHDATA E12 ASDO H12 RXON L12 JTAGEN C1 GPIO10 F1 VDD J1 ADD2 M1 DATA12 C2 USCRTS F2 ADD10 J2 RAMCS M2 DATA11 C3 USCTX F3 ADD14 J3 ADD0 M3 RD C4 KEYPADROW2 F4 GND J4 DATA14 M4 LWR C5 KEYPADCOL0 F5 ADD8 J5 DATA7 M5 DATA5 C6 OSC13MON F6 DISPLAYCS J6 DATA2 M6 DATA1 C7 GPIO4 F7 BSDO J7 GPIO1 M7 VDD C8 GPIO6 F8 VDDRTC J8 SIMCLK M8 GND C9 RADIOPWRCTL F9 GPIO2 J9 TMS M9 SIMSUPPLY C10 CALIBRATERADIO F10 BSCLK J10 EEPROMCLK M10 SIMDATAOP

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 45 - Confidential Information

Preliminary Technical Information

GPIO9

GPIO8

IRQ6

RESET

VDD

KEYPADROW0

KEYPADROW1

KEYPADROW2

KEYPADROW3

KEYPADROW4

KEYPADROW5

GND

KEYPADCOL0

KEYPADCOL1

KEYPADCOL2

144

1

USCRI

USCRX

USCTX USCCTS USCRTS

GPIO10

ADD19 ADD18 ADD17 ADD16 ADD15 ADD14 ADD13 ADD12 ADD11

GND

VDD

ADD10

ADD9

BOOTCODE

ADD8 ADD7 ADD6 ADD5 ADD4 ADD3 ADD2 ADD1 ADD0

RAMCS

GND

VDD

ROMCS DATA15 DATA14 DATA13

36

37

TOP VIEW

(PINS DOWN)

KEYPADCOL3

GPCS

OSC13MON

GND

VDD

AD6426

BACKLIGHT

DISPLAYCS

LCDCTL

GPIO3

GPIO4

GPIO5

GPIO6

GPIO7

VDD

CLKIN

GND

TXENABLE

RADIOPWRCTL

CALIBRATERADIO

TXPA

AGCB

109

72

108

73

AD6426

AGCA SYNTHCLK SYNTHDATA SYNTHEN0 SYNTHEN1 PWRON VDDRTC OSCOUT OSCIN GND VDD GPIO2 TXPHASE ASDO ASOFS ASDI ASCLK BSCLK BSDI BSIFS BSOFS BSDO CLKOUT RXON VBCRESET VSCLK VSDI VSFS VSDO VDD GND EEPROMDATA EEPROMCLK EEPROMEN JTAGEN TDI

DATA12

DATA11

DATA10

DATA9

DATA8

RD

GND

VDD

UBS

LBS

DATA7

DATA6

DATA5

DATA4

DATA3

DATA2

DATA1

DATA0

GND

VDD

WR

VDD

GND

FLASHPWD

GPIO1

GPIO0

SIMPROG

SIMRESET

SIMDATAIP

SIMSUPPLY

TCK

SIMCLK

SIMCARD

SIMDATAOP

TMS

TDO

Figure 24: LQFP Pin Locations

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 46 - Confidential Information

Preliminary Technical Information

LQFP Outline Dimensions

AD6426

A

L

144

1

D

1

109

108

TQFP 144

E

TOP VIEW

(PINS DOWN)

1

∩∩

A

1

A

2

36

37

e

B

73

72

MILLIMETERS INCHES

DIM

MIN TYP MAX MIN TYP MAX

A 1.60 0.063

A

1

A

2

0.05 0.15 0.002 0.006

1.35 1.40 1.45 0.053 0.055 0.057

D, E 21.80 22.00 22.20 0.858 0.866 0.874

D1 , E

1

19.90 20.00 20.10 0.783 0.787 0.791

L 0.5 0.6 0.75 0.019 0.024 0.030

e 0.50 0.020

B 0.17 0.22 0.27 0.007 0.009 0.011 Ç

0.08 0.003

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 47 - Confidential Information

Preliminary Technical Information

A

BCD

EFGH123456789101112JKLMeD2D

E2

EeE1

D1

b

0.10

A2cA1

A

//

cccC-C-

//

cccCaaa

C

AD6426

TOP VIEW

(Pins Down)

PBGA Outline Dimensions

AD6426

MILLIMETERS INCHES

DIM MIN TYP MAX MIN TYP MAX

A 1.42 1.65 1.80 0.05591 0.06496 0.07087 A1 0.30 0.40 0.50 0.01181 0.01575 0.01968 A2 0.75 0.90 0.97 0.02953 0.03543 0.03819

D 12.85 13.00 13.15 0.50590 0.51181 0.51772 D1 11.00 BSC 0.43307 BSC D2 9.95 10.75 11.55 0.39173 0.42323 0.45472

E 12.85 13.00 13.15 0.50591 0.51181 0.51772 E1 11.00 BSC 0.43307 BSC E2 9.95 10.75 11.55 0.39173 0.42323 0.45472

b 0.45 0.55 0.65 0.17716 0.02165 0.02559 c 0.27 0.35 0.43 0.01063 0.01378 0.01693 e 1.00 BSC 0.03937 BSC

aaa 0.15 0.00591

bbb 0.20 0.00787

ccc 0.25 0.00984

NOTE:

1. BSC - Between Spacing Centers

This Information applies to a product under development. Its characteristics and specifications are subject to change without notice. Analog Devices assumes no obligation regarding future manufacture unless otherwise agreed to in writing. No responsibility is assumed by Analog Devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Revision Preliminary 2.3 (June 9, ´98) - 48 - Confidential Information

AD6426 Data Sheet Change Summary

AD6426 Preliminary Revision 2.3

(Changes from Revision 1.0)

Number Date Description of Change

1 5/19/98 Motorola Serial Display mode added. 2 5/19/98 TXENABLE NMI function freeing up the IRQ6 pin added. 3 5/19/98 Dimensional tolerances for BGA package outline drawing added. 4 5/19/98 Memory I/F timing specs separated into characteristics and requirements. 5 5/19/98 Dual band control signals renamed- BANDSELECT0 is multiplexed with GPIO[2], BANDSELECT1

is multiplexed with GPIO[1]. For DB radios requiring a single Bandselect bit, BANDSELECT0 is enabled. For DB radios requiring 2 Bandselect bits then both BANSELECT0,1 can be enabled.

These signals were previously referred to as BANDSELECT and DCSSEL. 6 5/19/98 VBC and radio I/F diagram in Figure 6 updated to show a generic DB radio I/F. 7 5/19/98 DAI I/F Pins updated to be consistent with DAI Box users manual. 8 5/19/98 GPIO[7:0] Pin functions in Mode D (Table 24) were incorrectly listed as being all Tristate outputs.

The correct function is GPIO7 = TRI and GPIO[6:0] = O. 9 5/20/98 Requirements for 32kHz crystal for slow clocking added.

10 5/20/98 Pin functions in Emulation mode GPO 0,6,7 in Table 24 are renamed to reserve. 11 5/20/98 Memory Interface Timing Specification: read timing specs changed to max with the exception of

Control Processor data hold and Parameters broken out separately into requirements and

characteristics.

12 6/9/98 In Fig 24 the following pins were incorrectly labeled and thus changed;

a) Pin 45 from HWR to UBS b) Pin 46 from LWR to LBS c) Pin 98 from GND to VDD d) Pin 99 from VDD to GND

June 10, 1998 Page 1 of 2

AD6426 Data Sheet Change Summary

AD6426 Preliminary Revision 1.0

(Changes from Revision 0.1)

Number Date Description of Change

1 1/15/98 Dallas I/F added to Feature list. 2 1/15/98 Dallas I/F enable bit polarity changed from logic 1 to 0. 3 1/15/98 Dual Band control section added describing BANDSELECT and DCSSEL signals. 4 1/15/96 Serial Display Interface Timing Characteristics and Diagram added as Figure 23. 5 1/15/98 General Description: F7.2 data services deleted, this is not supported on the EGSMP. 6 1/15/98 General Description: AD6421/25 interfaces to the EGSMP. 7 1/15/98 Serial Display Reset signal removed from Figure 2.

Display driver chip reset input is connected to the AD6425 VBC Reset Input and both are driven by

the AD6426 VBC reset output. 8 1/15/98 Pin Functionality: VBCRESET added note, also used for Display Reset. 9 1/15/98 Pin Functionality: GPIO1 added note, alternate function DCS_ON.

10 1/15/98 CC Control Registers: Interrupt counter (Addr. 48) changed from 7 to 8 bits. 11 1/15/98 SIM Interface timing characteristics deleted - SIM signals are completely asynchronous with respect

to SIMCLK.

12 1/15/98 Plastic Ball Grid Array (PBGA) Package pinout and outline drawing added. 13 2/16/98 EVBC and radio Interface block diagram in Figure 6 updated with dual band control signals. 14 2/16/98 V 15 2/16/98 Added scan registers USCRX (O), USCRXEN (B), and VSDOEN (T)

16 2/16/98 Added H8 Control registers and register contents in Tables 3 and 4. 17 2/16/98 Buffered UART Register Contents added in Table 5. 18 2/26/98 19 2/26/98 20 2/26/98

21 2/26/98 Absolute Max ratings broken out separately for PBGA package. 22 2/26/98 Control Processor Data setup time changed from 10 to 68 ns. 23 2/26/98 Radio interface section: a reference to the TTP/Hitachi radios added “AD6426 Radio Interface

24 2/27/98 Pin Functionality: OSC13MON pin moved from RTC section to general section. 25 2/27/98 Memory interface timing diagram replaced with one used in 6422 data sheet. 26 2/27/98 CC register 46 bits 4-7 SIMCLOCK Polarity, SIMCLOCK off. SIMCLOCK Control, STBYCLKON

27 3/9/98 CC registers 80-87 slow clocking control removed from Table 1 & 2 per TTP’s request. 28 3/9/98 Peripheral registers 83, 106-109 removed from Table 3 & 4 per TTP’s request. 29 3/9/98 All Buffered UART registers removed per TTP’s request.

, Clock Input Voltage for ac-coupled sine wave input changed from 100 mVPP to 250 mV

CLKIN

Corrected output polarity in Notes to active-low (0=output).

IIH, IIL Input Current spec min -10, max 10 µA added.

I

, Low Level Output 3-State Leakage Current min 10, max 10 µA I

OZL

, High Level Output 3-State

OZH

Leakage Current min 10, max 10 µA.

supports radio architectures based on Siemens, Philips, and TTP/Hitachi RF chipsets”.

removed no longer used on 6426.

PP.

June 10, 1998 Page 2 of 2

Analog Devices AD6426XST, AD6426XB Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual

GENERAL DESCRIPTION

ORDERING GUIDE

Figure 1. Functional Block Diagram

Figure 2. External Interfaces of the AD6426

Table of Contents

PIN FUNCTIONALITY ( Normal Mode)

OVERVIEW

FUNCTIONAL PARTITIONING

Channel Codec Sub-System

Figure 3. Channel Codec Subsystem

Processor Sub-System

DSP Sub-System

Speech Transcoding

Equalization

Audio Control

Tone Generation

Automatic Frequency Control (AFC)

Automatic Gain Control (AGC)

REGISTERS

Table 1. CC Control Registers

Table 2. CC Control Register Contents

Table 3. H8 Peripheral Control Registers

Table 4. H8 Peripheral Register Contents

Clock Input

Clock Output

Slow Clocking

Real Time Clock and Alarm

Reset

Interrupts

Wait

Automatic Booting

Power Control

INTERFACES

Memory Interface

Table 5. Memory Interface

EEPROM Interface

Table 6. EEPROM Interface

SIM Interface

Table 7. SIM Interface

Accessory Interface

Table 8. Accessory Interface

Table 9. Additional GPIO / GPO Pins

Universal System Connector Interface

Time-shared Mode (Multi-switch)

DAI Acoustic Mode Testing

IQ Monitoring

16 bit Mode

Keypad / Backlight / Display Interface

Table 10. Keypad / Backlight / Display Interface

Table 11. Backlight Frequency

Figure 5. Parallel Display Interface

Serial Display Interface

Display Reset

Battery ID Interface

EVBC Interface

Table 12. EVBC Interface

Figure 6. EVBC and Radio Interface

Radio Interface

Dual Band Control

Generic Pins

Table 13. Radio Interface

Tx Timing Control

TXENABLE

TXPA

Rx Timing Control

RXON

Figure 8. Autocalibration

Synthesizer Control

Calibrate Radio

Table 14. Pin Mode

Table 16. Pin Function in Modes 2 and 3

AGC Control

Table 17. Pin Function in Mode 1

Table 15. Pin Function in Mode 1

Table 18. Pin Function in Mode 2

Table 19. Pin Function in Mode 3