Nokia 434 System Module 03

PAMS Technical Documentation

NHN±5NT Transceiver

Chapter 3

System Module JF5

Originat 05/98

Copyright 1998 Nokia Mobile Phones. All rights reserved.

NHN±5NT	PAMS
System Module JF5	Technical Documentation

AMENDMENT RECORD SHEET

Amendment	Date	Inserted By	Comments
Number

Page 3 ± 2

Originat 05/98

PAMS	NHN±5NT
Technical Documentation	System Module JF5

CONTENTS

Transceiver NHN±5N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 5
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 5
Baseband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 6
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 6
Baseband Technical Summary . . . . . . . . . . . . . . . . . . . . . . .	± 6
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 6
Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 7
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 7
Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 7
UIF Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 9
System Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 10
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 11
CTRLU Control Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 12
Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 14
Main Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 16
PWRU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 19
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 19
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 19
Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 20
Block Diagram of MUUMI ASIC . . . . . . . . . . . . . . . . . . . . . .	± 22
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 22
AUDIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 24
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 24
Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 24
Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 25
Block description, Audio Processor . . . . . . . . . . . . . . . . . .	± 28
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 30
RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 31
Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 31
List of Submodules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 31
Specification and Functional Description . . . . . . . . . . . . . . . . .	± 31
Characteristics of the Module . . . . . . . . . . . . . . . . . . . . . . . .	± 32
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 32
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 34
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 37
Functional description , RF section . . . . . . . . . . . . . . . . . . . . . .	± 38
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 38
RF Key components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 39
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 39
RX Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	± 39

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System Module JF5	Technical Documentation
RF Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 41
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 41
RX Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 42
RX loop filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 42
TX Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 43
TX Loop Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 43
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 43
Regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 43
AFC function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . ± 44
Parts List of JF5 system module . . . . . . . . . . . . . . . . . . .	. . . . . ± 45

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Technical Documentation	System Module JF5

Transceiver NHN±5N

Introduction

Functional Description

The NHN±5N transceiver electronics consists of the UI module PCB and the RF/system PCB. The UI module is connected to the system module with a connector. The system and RF submodules are interconnected with PCB wiring. The phone can be connected to accessories with a bottom system connector, which includes charging and accessory control.

Block Diagram

The NHN±5N consist of 2 PCB's: JF5 system module and GN4 user interface module.

The JF5 consists of 2 submodules, BASEBAND and RF. BASEBAND consist of 3 functional blocks: PWRU, CTRLU and AUDIO; RF also consists of 3 modules: RX, SYNT, TX; while the GN4 is the User Interface module (UIF±module, kindly refer to section 4.).

		RX	ANT
PWRU
		SYNT	DUP
CTRLU	AUDIO	TX
BASEBAND±submodule		RF±submodule

	UIF±module	BUZZER
		MIC,EAR

LCD LCD Driver

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System Module JF5	Technical Documentation

Baseband

Introduction

The baseband submodule controls the internal operation of the phone. It controls the user interface, i.e. LCD driver, keyboard and audio interface functions. The module performs all signalling towards the system and carries out audio±frequency signal processing. In addition, it controls the operation of the transceiver and stores tuning data for the phone.

Baseband Technical Summary

All functional blocks of the baseband are mounted on a single multi layer printed circuit board. This PCB contains also the RF±parts. The chassis of the radio unit contains separating walls for baseband and RF. All components of the baseband are surface mounted and soldered by reflow.

The connections to accessories are fed through the CAP (Common Accessory Platform) bottom connector of the radio unit. The connections to User Interface ±module (UIF) are fed through a board to board connector. There is no physical connector between RF and baseband.

Modes of Operation

The module has three operating modes: stand±by, listening and conversation mode.

Standby mode:

MCU clock is switched off, only NIPA timer is running to enable battery save timings.

If a charger is connected, the MCU doesn`t go to standby mode.

Listening mode:

In the listening mode some blocks of the audio IC (NIPA) are in standby state.

Conversation mode:

In the conversation mode all ICs are active.

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PAMS

NHN±5NT

Technical Documentation

System Module JF5

Maximum Ratings

Parameter

Value

Operating temperature range

±25 ... +55 deg. C

Storage temperature range

±40 ... +85 °C

VBAT max.

8.8 V (TX off)

VBAT max.

7.5 V (TX on)

VC max.

16 V.

Battery charging is enabled

+5 ... +45 °C

DC Characteristics

Pin / Conn.

Line Symbol

Minimum

Typical /

Maximum

Unit / Notes

Nominal

VCS

11.0V

12.0V

16.0V

Slow charger

9.8V

10.3V

10.8V

Fast charger

VBAT

5.3V

6.0V

8.8V

VRF

5.3V

6.0V

8.8V

VBAT for RF mod-

ule

VA

3.2V

3.3V

3.42V

Imax = 40mA

VL

3.2V

3.3V

3.42V

Imax = 40mA

VL3

4.5V

4.75V

5.0V

Imax = 180mA

VREF

3.2V

3.3V

3.42V

Imax = 5mA

Signals

Pin /

Line Symbol

Mini-

Typi-

Max-

Notes

Conn.

mum

cal /

i-

Nomi-

mum

nal

6/system

M2BUS

0V

0.7V

Input low level

Isink<5m

ABaud

2.3V

5.25

Input high level

rate 9600

V

bits/s.

0V

0.2V

0.35

Output low level

V

4.1V

4.5V

5.0V

Output high level

10/sys-

HOOK

0V

0.5V

Input low level

Hook

tem

2.4V

3.2V

Input high level

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NHN±5NT						PAMS
System Module JF5					Technical Documentation
Pin /	Line Symbol	Mini-	Typi-	Max-	Notes
Conn.		mum	cal /	i-
			Nomi-	mum
			nal
2/system	VOUT	0V	0.2V	0.4V	Output low, power	HDA de-
					off	vice pow-
						er on/off
		4.1V	4.5V	5.0V	Output high, power
					on
5/system	BOOST0		0V		booster detect /	RF
					power control º0º	booster
						detection
			3.3V		booster detect /
						/ power
					power control º1º
						select
11/sys-	BOOST1		0V		booster detect /	RF
tem					power control º0º	booster
						detection
			3.3V		booster detect /
						/ power
					power control º1º
						select
12/sys-	VCS	9.8V		16V	Isink < 730mA
tem
2/battery	BSI		1.95V		400mAh Li±ION	A 47k
						pull±up
			0.45V		550mAh NiMH
						resistor in
			1.95V		1500mAh Li±ION	HP.
3/battery	BTEMP		1.0V		47k , B=4050 NTC between
					BTEMP and ground in battery
					pack.
					A 47k pull±up resistor in HP.
					Vibrator control output (AC±
					controlled)
3,4/UIF	BACKLIGHT		0mA		backlights off	Back-
						light±
			40mA		backlights on	ing for
						keymat
17±24/UI	LD(0:7)	0V		0.7V	Output/Input low	LCD I/O,
F						keypad
		2.3V		3.3V	Output/Input high
						output
7±9/UIF	ROW(0:2)	0V		0.7V	Input low	Keypad
						input
		2.8V		3.3V	Input high

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PAMS									NHN±5NT
Technical Documentation									System Module JF5
Pin /	Line Symbol		Mini-		Typi-			Max-	Notes
Conn.			mum		cal /			i-
					Nomi-			mum
					nal
25/UIF	LCDREG		0V					0.7V	Output low	LCD
										data/con-
			2.8V					3.3V	Output high
										trol
26/UIF	LCDCS		0V					0.7V	Output low	LCD chip
										select
			2.8V					3.3V	Output high
27/UIF	LCDRESET		0V					0.7V	Output low	LCD re-
										set
			2.8V					3.3V	Output high
11/UIF	XNWR		0V					0.7V	Output low	LCD write
			2.8V					3.3V	Output high
28/UIF	XNRD		0V					0.7V	Output low	LCD read
			2.8V					3.3V	Output high
10/UIF	LCDCLK		0V					0.7V	Output low	LCD
										clock
			2.8V					3.3V	Output high
12/UIF	XPWRON		0V					0.7V	Input low	Power
										ON but-
			2.8V					3.3V	Input high
										ton
UIF Connector
Signal Name			Pin						Notes
VL		1					Logic supply voltage 3.3V
CALLLED		2					Call LED
BACKLIGHT		3,4					Backlights on/off
VNEG		6					Negative voltage for LCD module
ROW0,1,2		7±9					Lines for keyboard read
LCDCLK		10					LCD Driver clock
XNWR		11					LCD Driver write selection input
XPWRON		12					Power on control from keyboard
GND		13,14,15,16					Ground
LD(0:7)		17±24					Parallel data for LCD driver
LCDREG		25					LCD Driver control/data select

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NHN±5NT		PAMS
System Module JF5		Technical Documentation
Signal Name	Pin	Notes
LCDCS	26	LCD Driver chip select
LCDRESET	27	LCD Driver reset
XNRD	28	LCD Driver read selection input
System Connector
Signal Name	Pin	Notes
GND	1, 8	Power supply ground.
XMIC	3	External audio input from accessories
		or handsfree microphone. There is a
		pull±down resistor in accessory for
		identification
M2BUS	6	Serial bidirectional data and control be-
		tween the handphone and accessories.
		A 10k pull±up resistor in HP.
BOOST0,1	5,11	RF booster detection lines / RF power-
		level control.
HOOK	10	HOOK±indication. The phone has a
		47k pull±up resistor.
VOUT	2	Hand±free device power on/off.
XEAR	9	External audio output to accessories or
		handsfree speaker. There is a DC volt-
		age control for HF unit mute control.
BGND	BGND	Battery connector
BTEMP	BTEMP	Battery connector, Battery temperature
BSI	BSI	Battery connector
VBAT	B+	Battery connector
VCS	12,CH+,	Battery charging voltage
	DC+

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Technical Documentation	System Module JF5

Connections

Charging Connectors

Battery Connector

4

3

2

1

12	7
+ 3	4 ±	1	2
1	6
	Locking
RF±connector
(not used)	System Connector

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System Module JF5	Technical Documentation

CTRLU Control Block

The Control block controls all phones functions and it includes modem and SIS±processor too.

CTRLU internal signals, input

Signal Name	Notes	From
VL	Logic supply voltage, 3.3V.	PWRU
VL3	Logic supply voltage, 4.75V.	PWRU
VREF	Reference voltage 3.3V 3%. Max.	PWRU
XRES	Reset line from MUUMI	PWRU
PWRON	Power on signal from MUUMI	PWRU
VCHARG	Charger voltage to A/D converter	PWRU
VBATSW	Battery voltage to A/D converter.	VCHARG
CLKMCU	Clock signal from NIPA.	AUDIO
NMI	No maskable Interrupt reques from NIPA	AUDIO
XINT	Interrupt reques from NIPA.	AUDIO
HOOK	HOOK±indication	SYSTEM
BTEMP	Battery temperature	SYSTEM
BSI	Battery size indication	SYSTEM
M2BUS	Serial interface	SYSTEM
RFTEMP	RF temperature	SYNT
RSSI	Received signal strenght indication	RX
TXI	Transmitter output power level indication	TX
XPWRON	Power buttom from UIF.	UIF
ROW0	Line for keyboard read.	UIF
ROW1	Line for keyboard read.	UIF
ROW2	Line for keyboard read.	UIF
ACCDET	Accessory detection line	SYSTEM

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PAMS		NHN±5NT
Technical Documentation		System Module JF5
CTRLU internal signals, output
Signal Name	Notes		To
CSW	Charger control		PWRU
VOUT	Headset±adapter powersupply		SYSTEM
M2BUS	Common serial clock (NIPA,sis)		SYSTEM
AGC	Gain control		RX
RXE	RX Circuit power on/off		RX
SCLK	Synchronous data clock for synthesizers		SYNT
SDAT	Synchronous data for synthesizers /		SYNT, TX
	TX duplex filter current control 2 (option)
SLE	Synthesizer data latch enable		SYNT
TXE	Transmitter control (on/off)		TX
TXC	Transmitter Power Control		TX
XNCS	NIPA chip select signal		AUDIO
XNWR	NIPA/LCD write control signal		AUDIO.UIF
XNRD	NIPA/LCD read control signal		AUDIO,UIF
NA0±3	NIPA/LCD address bus		AUDIO,UIF
ND0±7	NIPA/LCD data bus		AUDIO,UIF
EARENA	Ear amplifier enable		AUDIO
KBINT	Keyboard interrupt		AUDIO
MBUSINT	MBUS interrupt		AUDIO
MBUSOUT	MBUS out		PWRU
LIGHTS	Backlights on/off		UIF
LCDCS	LCD Driver chip select		UIF
LCDRESET	LCD Driver reset		UIF
XEARON	External ear amplifier enable		SYSTEM
XEARDC	PHF5 DC mute control		SYSTEM

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System Module JF5	Technical Documentation

Block Description

± CTRLU ± PWRU

MCU controls the watchdog timer in the MUUMI ASIC. It sends a positive pulse approximately once every 1 s to the XPWROFF pin of the MUUMI to keep the power on. If the CTRLU fails to deliver this pulse, the MUUMI will remove power from the system. The CTRLU controls also the charger on/off switching in the PWRU block. When power off is requested, the CTRLU leaves the MUUMI watchdog without reset. After the watchdog has elapsed the MUUMI cuts off the supply voltages from the phone. Battery charging is controlled by CSW line.

VBATSW , Battery voltage measurement

Battery voltage can be measured from 5.4 V to 10.3 V nominal with 3.3 V reference voltage. The absolute accuracy is low because of the reference 3 % accuracy and A/D±converter +/± 8 LSB accuracy . This battery voltage measurement offset error must be calibrated with input voltage

6.0 V and 8.2 V. The A/D conversion result can be calculated from the following equation:

A/D readout = 1024 * (VBATSW* ( 47/147)) / VREF

VREF=3.3 V

For example:
8.2 V	results	814	= 32EH
6.0 V	results	595	= 253H

VCHARG , Charger voltage measurement

Charger voltage can be measured up to 18.3 V nominal. The A/D±conversion result can be calculated from equation :

A/D readout = 1024 * (VCSW*(22/122)) / VREF VREF=3.3 V

For example:
12.0 V	gives	671 = 29FH
6.0 V	gives	336 = 150H

BSI , Battery size indication

Battery type can be defined with the BSI resistor value. A NiMH battery has a different BSI resistor compared with a Li±ION battery. Different sizes of the Li±ION batteries cannot be identified.

BTEMP , Battery temperature measurement

Battery temperature measurement is implemented with a 47 kohm NTC with N value of 4050 and 47 kohm pullup resistor. The A/D conversion readout can be calculated from equation:

A/D readout= 1024* ( RNTC /( RNTC+47k))

For example:
45	C	gives	?
25	C	gives	?
5 C		gives	?
0 C		gives	?

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Technical Documentation	System Module JF5

Battery voltage is measured over the VBATSW and charging voltage over the VCHARG. Battery temperature is measured over the BTEMP line.

Battery size is determined by reading the BSI line. This is pulled to +3,3V by a 47kohm resistor. In the battery pack a ºsizeº resistor is connected between BSI and GND. Battery charging is controlled by the CSW line. Muumi watchdog is refreshed by controlling XPWROFF line.

± CTRLU ± AUDIO

Interface between the MCU and the NIPA circuit is a bidirectional 8±bit data bus with 4 address lines. Address, data and control lines are used in the MCU as I/O±port pins. The data lines direction is controlled with the MCU data direction register. The interface includes address outputs

NA0±3, data inputs (read) / outputs (write) ND0±7, chip select control output XCS , read control output XRD, write control output XWR and interrupt input XINT. When the MCU is in sleep state, the control signals XRD and XCS must be in '0' state and the address output NA0±3 and NWR in '1' state and data lines ND0±7 must be in `0` state.

± CTRLU ± UIF

The keyboard is connected directly to the controller. ND0±6 are the output lines and ROW0±2 are the input lines. Keyboard scanning is done by driving one ND line to 0 V at the time. If any key is pressed, then the corresponding ROW line goes to 0V and the phone knows which key is pressed.

Data to the LCD Driver is written and read by ND(0:7) lines. XNRD/

XNWT are the read / write selection lines and NA0 is the instruction / data register selection line. LCDCS line enables the LCD driver.

ND(0:7) lines are in 0 V state when phone is in sleep mode so that any key pressing can be indicated.

Keyboard and LCD lights are controlled by LIGHTS signal.

± CTRLU ± RX

RX circuit power is switched on/off by RXE signal.

The received signal strength is measured over the RSSI and the intermediate frequency is measured over the IF.

± CTRLU ± SYNT

RF temperature is measured over the RFTEMP. Frequency is controlled by the AFC signal. The synthesizer is controlled via the synchronous serial bus SDAT/SCLK. The data is latched to the synthesizer by the positive edge of SLE line. The TX synthesizer power on/off (TXS/port P3) line is controlled via PLL circuit.

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System Module JF5	Technical Documentation

± CTRLU ± TX

The transmitter output power level is measured over the TXI. TXE line activates the power module. The power is controlled via TXC line which is a PWM±controlled output port.

Main Components

± MCU

The phone MCU H8/3092 is a CMOS MCU. All the memory needed (128 kB ROM, 4 kB RAM) except the EEPROM, is located in the controller. MCU operating clock (7.3728 MHz) is generated on the NIPA.

MCU Pins are listed in the table:

Pin No	Port	Signal	Description
1	PB0	SISCLK	Clock for SIS prosessor
2	PB1	SISDATA	Serialdata to SIS prosessor
3	PB2	EDATA	Serial data to EEPROM
4	PB3	RXD	Serial interface (M2BUS)
5	PB4	SCLK	Serial clock for synthesiz
6	PB5	HOOK	Handset hook signal
7	PB6	PWRON	Power button
8	PB7	SLE	RX/TX synthesizer latch
9	P90	TXD	Serial interface (M2BUS)
10	P92	RXD	M2BUS net free timer input
11	P94	ECLK	Clock to EEPROM
12	Vss	GND	MCU Ground
13±20	P30±P37	ND0±7	Paraller data bus for NIPA,LCD & keys
21	Vcc	VL	Power supply for processor
22	P10	NA0	Address line for NIPA and LCD regis-
			ter
23	P11	NA1	Address line for NIPA
24	P12	NA2	Address line for NIPA
25	P13	NA3	Address line for NIPA
26	P14	XNCS	NIPA chip select
27	P15	XNWR	Read/write control to NIPA
28	P16	XNRD	Read/write control to NIPA
29	P17	LCDCD	LCD chip select
30		GND	MCU Ground

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Technical Documentation	System Module JF5

31	P20	LIGHTS	Backlight control
32±35	P21±P24	ROW0±3	Keypad inputs
36	P25		protoseries indicator, pull±down if pro-
			to
37	P26
38	P27	CALLCNT	Call continue during battery change
39	P50	XPWROFF	Muumi watchdog refresh
40	P51	EARENA	EAR amplifier enable
41	P52
42	P53	LCDRESET	Reset to LCD
43	P60
44	MD0
45	MD1
46
47	STBY
48	RES	XRES	Reset from MUUMI
49	NMI	NMI	Interrupt request from NIPA
50	Vss	GND	Ground
51	EXTAL	EXTAL	External system clock from NIPA
52	XTAL
53	Vcc	VL
54	P63	TXE	Transmitter on/off
55	P64	AGC	Gain control
56	P65	RXE	RX circuit power on/off
57	RESO
58	AVcc
59	P70	VBATSW	Battery voltage
60	P71	VCHARG	Charger voltage
61	P72	RSSI	Received signal strength
62	P73	TXI	Transmitter power monitor
63	P74	BTEMP	Battery temperature
64	P75	BSI	Battery size indication
65	P76	RFTEMP	RF temperature
66	P77	ACCDET	Accessory detection
67	Vref	Vref	Reference voltage for processor
68	AVcc	Vref	Reference voltage for processor

Originat 05/98

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