Datasheet MX93032-M1 Datasheet (MXIC)

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MX93032

1.0 GENERAL DESCRIPTIONS

• MX93032-M1 is an engine chip on which digital an­swering machine (DAM) with full duple x speaker phone
is implemented. Besides, CAS tone detection capa­bility and FSK decoder for Caller-ID service has also
been implemented as well.

• It provides speech processing / management mod­ules, including speech compression/decompression,
silence management, telephone line signal process­ing, Macronix MX29F16A FLASH management, line

echo cancellation and acoustical echo cancellation,
etc.

• The MX93032-M1 has built-in DSP mode and MCU
mode. In DSP mode, users do not need external mi­croprocessors and can effectively reduce the overall
system cost in DAM with full-duplex speakerphone
system. In MCU mode, the MX93032-M1 is controlled
by an MCU (micro controller) via a 8 bit parallel or
serial interface.

2.0 FEATURES

• Switchable 4.8kbps/12.8kbps speech compression/
decompression algorithm for message recording/play­back.

• Minimum 15 or 40 minutes of recording time for one
16M bits MX29F16A FLASH based on 12.8K or 4.8K
compression rate, respectively.

• Low (4.8kbps) or High (12.8kbps) compression rate
with silence management technique for voice prompt
making. V oice prompt can be stored in Flash memory .

• Support total 127 messages, maximum 7 OGMs and
maximum 8 personal mailboxes.

• DTMF generation and detection with near-end echo
cancellation.

• Provide single low crystal solution (FLL).

• Built-in DSP mode and MCU mode. In DSP mode,

user can mask the system code into the MX93032­M1. In MCU mode, user can control the MX93032-M1
via MCU (micro controller).

• Provide standard sample program written by 8051
assemble for customer development.

• Full duplex speakerphone with both acoustical echo
canceller (AEC) and line echo canceller (LEC)

• Built-in CAS signal detector for monitoring the pres­ence CPE alerting signal in Calling Identity Delivery
on Call W aiting.

• FSK decoder for Calling Identity Delivery on CID T ype
I and CID Type II

• Caller ID Type II can be turned on under speaker phone
mode

• Auto detecting MCU mode and DSP mode

APPLICATION NOTE [M1 VERSION]

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MX93032

3.0 BLOCK DIAGRAM

DSP MODE

MCU MODE

Dis play

MX93032 -M1

Commands

FLASH

Keyp ad

MX93002

DAA

Spea ker

Microphone

Telephone Line

Display

MX93032-M1

Commands

FLASH

MCU

Commands

Keypad

MX93002

DA A

Speaker

Microphone

Telephone L ine

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MX93032

4.0 PIN CONFIGURATIONS

4.1 MCU MODE

EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDD
EAD15
NMI\
INT1\/SCKL
PHILO
CDR0
PHRD\
CMCK
CFS
CDX0
PHWR\
PHDB0
PHDB1

ED11
ED12
ED13

VDD

GND
ED14
ED15

X1\VDD

X2\GND

A19
A18
A17

IPT8
FCE2\
FCE1\

RST\
EROM
SDEN\
SDATA

A16

A15

OPT9

OPT8

OPT7

OPT6

OPT5

OPT4

OPT3

OPT2

OPT1

OPT0

X32I

X32O

PACK\

CDR1

PDN

IPT5

IPT4

IPT3

P/S

IPT1

IPT0

VDD

GND

SI/PHDB7

SO/PHDB6

PHDB5

PHDB4

PHDB3

PHDB2

ED10

ED9

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDD

ED0

HOLD\

CDX1

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

EAD2

EAD3

EAD4

EAD5

EAD6

FLLEN\

GND

EAD7

EAD8

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4.2 DSP MODE

EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDD
FAD15
NMI\
INT1\
A16
CDR0
A15
CMCK
CFS
CDX0
OPT16PHDB0
PHDB1

ED11
ED12
ED13

VDD

GND
ED14
ED15

X1\VDD
X2\GND

A19
A18
A17

IPT8
FCE2\
FCE1\

RST\
EROM
SDEN\
SDATA

OPT11

OPT10

OPT9

OPT8

OPT7

OPT6

OPT5

OPT4

OPT3

OPT2

OPT1

OPT0

X32I

X32O

XF\

CDR1

IPT6

IPT5

IPT4

IPT3

IPT2

IPT1

IPT0

VDD

GND

BIO7

BIO6

BIO5

BIO4

BIO3

BIO2

ED10

ED9

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDD

ED0

HOLD\

CDX1

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

EAD2

EAD3

EAD4

EAD5

EAD6

FLLEN\

GND

EAD7

EAD8

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5.0 PIN DESCRIPTIONS

POWER/CLOCK/CONTR OL PINS :

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

VD D 23, 43, 69, 84 5V power source
GND 24, 44, 53, 70, 85 Ground
X1/VDD 88 32.256MHz crystal input/Connect to VDD in single low X'tal mode
X2/GND 8 9 32.256MHz crystal output/Connect to GND in single low X'tal mode
RST\ IS 96 Po wer-on reset
XF\ OA 14 External flag if UPMODX=1. This pin can be directly written by one

DSP instruction. Default inactive (5V output)
HOLD\ IS 67 Hold DSP clock down and release bus
EROM IS 97 Disable internal ROM, use external ROM only
NMI\ IS 41 Non-maskable interrupt pin
INT1\ IS 40 Interrupt pin
X32O 13 32.768KHz crystal output
X32I 12 32.768KHz crystal input
FLLEN\ IS 54 1 : Dual X'tal mode

0 : Single low X'tal mode
P/S IS 20 1:Parallel interf ace in MCU mode

0:Seriall interface in MCU mode
PDN IS 1 6 0:POWER DOWN

CODEC INTERF ACE PINS :

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

CFS OA 3 5 Codec frame sync, 8KHz (9.6KHz). Output low in power down mode.
CMCK OA 36 Codec master clock, 1.536MHz. Output low in power down mode.
CDX0 OA 3 4 Codec data transmit
CDR0 IS 38 Codec data receive
CDX1 OA 66 Codec data transmit
CDR1 IS 15 Codec data receive
SDEN\ OB 9 8 Serial data enable(for MXIC codec family)
SD ATA OB 99 Serial data transmit(for MXIC codec family)

IPT : Input port

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

IPT4-IPT5, IS 18-17,93 Input port
IPT8
IPT0-IPT3 ISH 22-19 Input port with internal pull high resistor (R=30KW)

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MX93032

OPT : Output port

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

OPT0-OPT9 OB 2-11 Output to pin, all output values are registered and may be read back

when read by "IN" instruction.

OPT10-11 OB 1, 100 Output to pin, all output values are registered and may be read back

when read by "IN" instruction. Only available for DSP mode

MEMORY INTERF A CE PINS :

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

EAD0-EAD15 OA/Z 61-55, 52-45, 42 External memory address bus.
ED0-ED15 IT/OA/ZR 68, 71-83, 86-87 External memory data bus. With soft latch feed back current is 250

u

A
EDCE\ OA/Z 6 5 External data chip enable
EPCE\ OA/Z 6 4 External program chip enable
ERD\ OA/Z 63 SRAM/ROM/IO external read
EWR\ OA/Z 62 SRAM/ROM/IO external write
A15 0A 37 (DSP MODE) address bus for FLASH

1 (MCU MODE)

A16 OA 39 (DSP MODE) address bus for FLASH

100 (MCU MODE)
A17 OA 9 2 address bus for FLASH
A18 OA 9 1 Address bus for FLASH
A19 OA 9 0 Address bus for FLASH
FCE1\, FCE2\ OB 95, 94 FLASH chip enable

u

P Parallel Interface (MCU MODE)
SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

PHDB0-PHDB7 IS/OA/Z 25-32 Parallel data bus
PHILO IS/OA/Z 39 Select High or low byte. 1: high byte , 0: low byte
PHRD\ IS/OA/Z 37 HOST read enable
PHWR\ IS/OA/Z 33 HOST write enable
P A CK\ OA 14 Response is ready

uP Serial Interface (MCU MODE)

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

SCLK IS 40 Synchronous clock
SI OA/Z 25 HOST serial data in
SO IS/Z 2 6 HOST Serial data out

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MX93032

BIO: Bi-directional I/O (DSP MODE)

SYMBOL PIN TYPE PIN NUMBER DESCRIPTION

BIO7-BIO0 IT/OA 25-32 Input/output port when UPMODX = 1. Direction is controlled by

BIO15-BIO8 (see BIOR).

NOTE :

IT :TTL level input
IS :CMOS level Schmidt trigger input (hysteresis : 2V~3V)
ISH :CMOS level Schmidt trigger input with internal pull high resistor (~30KW)
OA :8mA drive level output
OB :16mA drive level output
Z :high impedance state
ZR :high impedance state with soft latch

MUL TIPLEX PINS:

PIN NUMBER PIN NAME DSP MODE PIN NAME MCU MODE

25~32 BIO(7:0) Input/output port PHDB(7:0) Host data bus
39 A16 Flash address PHILO High low data select
37 A15 Flash address PHRB\ Host read
33 OPT16 Output port PHWR\ Host write
14 XF\ External flag PACK\ Acknowledge to host
100 OPT11 Output port A16 Flash address
1 OPT10 Output port A15 Flash address

PIN NUMBER PIN NAME FLLEN\=1 (Dual X'tal) PIN NAME FLLEN\=0 (Single X'tal)

88 X1 32.256MHz crystal input VDD P o wer V DD
89 X2 32.256MHz crystal output G N D Po wer ground

NOTE FLLEN\: pin 54

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MX93032

6.0 FUNCTIONAL DESCRIPTIONS

HOST INTERF ACE (MCU MODE)

The command and response of the MX93032-M1 are made up by a 16-bit code. The protocol that one command sent
and one response received must strictly be obeyed by HOST ; otherwise, dead lock will occur. Meanwhile, both
parallel interface and serial interface are provided by the MX93032-M1.

8-bit parallel :

A 16-bit code can be accessed by HOST two times via setting PHILO pin. For writing operation, the HOST write the
low byte of the command into the register of DSP, when PHILO is pulled to low , DSP does nothing but latches data.
Following, PHILO is set to high and high byte of command is written into register , then DSP will perform the command
issued by HOST and send out the response. DSP will pull PACK\ to be low to indicate that response is ready . HOST
must read the low byte and then high byte sequentially. PACK\ will reset to high when the high byte is read b y HOST.
All of the description given above will be illustrated by the following timing chart.

PHILO

PHDB 0 - 7

PHWR\

PACKB\

PHRD\

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MX93032

Synchronous Serial :

The protocol of synchronous serial interface will be interpreted by the timing chart given below .

16 PULSES

SCLK

SI

Tget

16 PULSES

SCLK

SO

Tput

0 R15 R14 R1 R0

C15

C14

C1 C0START

0

…

…

…

…

Note: SCLK : synchronous clock sent by HOST,

SI : HOST serial in,
SO : HOST serial out,
Tget and Tput should be larger than 200 uS

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MX93032

Decision Rules between MCU mode and DSP Mode:

1 . The contents located on 0xE000 and 0xE001 are 0x1234 and 0x5678, It will be considered as external DSP mode.

This configuration is used for developing customer’s control codes on MXIC’s MX93032-M1 IC with standard
code.

2 . The contents located on 0x680E and 0x680F are 0x5678 and 0xA988, it will be considered as MCU mode. This is

the only one configuration for MCU mode under developing and mass production.

3 . Either the content located on 0x680E and not 0x5678 or that located on 0x680F are not 0xA988, it will be consid-

ered as DSP mode. The configuration is used for mass production f or DSP mode adopted.

4 . The decision priority depends on the items order. That is , the item labeled with smaller number has higher priority .

CONTROL CODE CONFIGURA TION (DSP MODE)

There are two configurations for customer development or production.

Configuration 1 :

In this configuration, the BIOS+ALGORITHM and control codes are all running in the external high-speed EPROMs
or SRAMs. The MX93032-M1 pin 97 (EROM) m ust be set to high.

26K words

6K words

0000H

6800H

7FFFH

External high-speed EPROMs or SRAMs

BIOS+ALGORITHM

c

(address 0000H - 67

F

cont rol co de
(address 6800H - 7F

This configuration is mainly used in the development stage and the access time of high-speed EPROMs or SRAMs
must be less than 30ns.

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MX93032

Configuration 2 :

In this configuration, the BIOS+ALGORITHM code is running in the MX93032-M1 internal ROM and the control code
running in the external low-speed EPROMs. The MX93032-M1 pin 97 (EROM) must be set to low .

26K words

0000H

6800H

7FFFH

DSP in t e rnal RO M

BIOS+ALGORITHM

c

(address 0000H - 67

F

Ext er n al l ow -sp e ed EPRO M s

0000H

E000H

FFFFH

ex t e rnal voi ce prom p
data address 1000H

ex t e rnal voi ce prom p
program address 80

0

1000H

max. 8K words

8000H

co ntrol code
(address E000H - F

F

This configuration can be used at the development stage or f or production. The control code must start with two words
1234H and 5678H.

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MX93032

Configuration 3 :

In this configuration, the BIOS+ALGORITHM and control codes are all running in the MX93032-M1 internal ROM. The
MX93032-M1 pin 97 (EROM) must be set to low .

26K words

6 K words

00 00H

6800H

7FFFH

DSP internal ROM

BIOS+ALGORITHM

c

(addres s 0000H - 67

F

cont rol co de
(addres s 6800H - 7F

0000H

8000H

FFF FH

External low-speed EPROMs

exter nal voice promp
data address 1000H

exter nal voice promp
program address 80

0

1000H

This configuration is used for production.
T o set the v oice prompt configuration, see the MX93032-M1 Mode 7.

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MX93032

MX93032-M1

The MX93032-M1 provides DSP embedded functional
modules, including speech compression/decompression,
telephone line signal processing, ROM voice prompt,
Macronix MX29F16A Flash management, time keeping
and full duplex speaker phone.

In MCU mode, the MX93032-M1 service is requested
via a command call with 16 bits parameter sent by Micro
controller, and answered 16 bits sent by DSP. In DSP
mode, user's system control program can be masked-in
the MX93032.

The MX93032-M1 supports 16 modes of service and
responses useful to operational information about tim­ing, FLASH utilization, detected DTMF, etc.

Hereafter , HOST means "external micro-controller" f or
MCU mode, and it means "system control program"
for DSP mode.

FLASH MANAGEMENT

The MX93032-M1 uses MXIC's MX29F16A FLASH as
storage device for message and/or voice prompt data.
Up to two MX29F16A can be supported by the MX93032­M1 service command.

The MX29F16A is a 16M-bit FLASH memory organized
as 1M word x 16. It includes 16 sectors (each sector is
64K words) and some of these sixteen sectors are bad.
T o manage the MX29F16A, the MX93032-M1 will detect
and then give up bad sectors and only utilize the good
sectors. For the purpose of storage efficiency , each good
sector is further divided into 32 blocks (each block con­tains 2K words). Each block can store speech data of
about 6.8 seconds for 4.8kbps compression algorithm
and 2.55 seconds for 12.8kbps compression algorithm.

MESSAGE RECORDING AND ST ORAGE

The MX93032-M1 provides high quality speech compres­sion techniques for recording and playback functions. It
can permit over 15 minutes or 40 minutes of speech
storage in each 16M bit of MXIC's MX29F16A FLASH
device based on 12.8K or 4.8K compression rate, re­spectively.

The MX93032-M1 supports up to 127 variable length in-

coming and outgoing messages that are labeled as Msg
ID 1 to 127. Although ICM could range from Msg 1 to
127, Msg IDs 127 to 121 are the only places for outgoing
messages (OGM) storage so that the deletion and re­covery of old OGM are easier to maintain. The Msg IDs
of incoming messages are labeled chronologically and
rearranged automatically after recording or deleting. ICM
with Msg ID 1 is the oldest recorded incoming message.
Each message can be recorded by either 4.8K or 12.8K
compression rate depending on system programmer’s
assignment.

During recording, the MX93032-M1 also monitors the
telephone line signal to detect the presence of DTMF,
Call Progress Tone and Continuous T one and responses
to the control program. The HOST can stop recording,
and delete the last n*400ms/200ms from the memory
using a Record command with assigned Tail Cut factor.
The MX93032-M1 can generate a desired tone during
recording voice message, which allows the application
such as two-way recording. During recording, Record
Pause function is provided.

The recording voice signal, received through the CODEC
input, is transmitted back to the CODEC output by the
MX93032-M1 service commands.

OUTGOING MESSAGE (OGM) RECORD

The MX93032-M1 provides flexible recording ways for
outgoing message. The HOST can select to delete the
old OGM before a new one is recorded or to abort the
new OGM record without losing the old OGM.

NEW/OLD MESSAGE

For the control program to manipulate incoming mes­sages more handily , the MX93032-M1 keeps an internal
record of the ICM to identify the new/old status of mes­sages.

Before playback, the status of ICM is considered as
"new". All incoming messages that have been played
could change their status to "old" by issuing Real Del bit
on Delete command. After Real Del is issued, all new/
old ICM Msg IDs will be rearranged. The functions , Play
New or Delete All Old messages , are provided by the
MX93032-M1 in the command set.

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MX93032

MESSAGE PLAYBACK

Random access for playback of any new message or
message with specified Msg ID is supported by the
MX93032-M1. During playback, the MX93032-M1 also
monitors the telephone line signals, and Play P ause func­tion is provided. The MX93032-M1 is ab le to fast-forw ard
the playback of a recorded message, and the playing
speed will be up to 33 %.

MESSAGE DELETION

The MX93032-M1 provides two ways to delete recorded
ICMs. One is the two-step method - the combination of
Del Mark and Real Del on Play and Delete command,
and the other is the immediate method - Delete com­mand. The two-step method enab les the control program
to handle the deletion more flexibly, while the immediate
method deletes a specified message directly .

VOICE PR OMPT

For high-quality voice prompt playback, the MX93032­M1 utilizes the built-in speech decoder and external
EPROM/ROM or FLASH to store the vocabulary. The
MX93032-M1 also supports up to a 32K-word external
EPROM/ROM that allows minimum 1.8 minutes of voice
prompt storage. If voice prompt data is stored in FLASH,
space of maximum 60K words (minimum 3.4 minutes) is
permitted. The external (upper part) voice prompt is also
allowed. But if FLASH voice prompt is enabled, the ex­ternal voice prompt will be disabled. The v ocabulary sup­ports up to 255 phrases. Giv en a phrase number in the
V oice Prompt command from the HOST, the MX93032­M1 outputs the corresponding utterances to the Codec
interface. The starting address of external voice prompt
data could be located at data address 1000H, or pro­gram address 8000H.

During playback of the voice prompt, the MX93032-M1
monitors the telephone line signals.

PERSONAL MAIL

The MX93032-M1 supports up to 8 mailboxes that may
be used for personal mail application. Each mailbox has
its own ICM/MEMO Msg ID . The total Msg.ID is 127 for
all of mailbox. Before recording, playing or deleting mes-

sages, the HOST should set the corresponding mailbox
number first with Personal Mail command.

TIME KEEPING

There is a timer clock in the MX93032-M1. The HOST
can issue Set Time and Get Time commands to get time
services. The cloc k also supports system to stamp time
to the recorded incoming message.

DTMF DETECTION

For remote control operation of the answering machine,
the MX93032-M1 monitors the incoming telephone line
signal to detect the presence of DTMF signal.

TONE GENERA TION

Up to double tones can be generated by the MX93032­M1. The levels and frequencies are programmable by
the HOST .

CALL PROGRESS T ONE DETECTION

The MX93032-M1 supports the detection of call progress
tone within the band of 300 - 640 Hz for the incoming
telephone line signal. The tone detector is implemented
with a bandpass filter. Indication of the presence of call
progress tone is responded to the control program, and
could be used to terminate recording.

NEAR END ECHO CANCELLA TION

The MX93032-M1 implements a near end echo cancel­ler in software to enhance the detection of DTMF and
Call Progress Tone during Playback and Voice Prompt
mode.

FSK Decoder

All of the services, Calling Number Delivery (CND), Call­ing Name Delivery (CNAM) and Calling Identity Delivery
on Call Waiting (CIDCW), exploit the Frequency Shift
Keying (FSK) method to tr ansmit the desired data from
the SPCS to CPE. Depending on the specific service,

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MX93032

data transmission may occur with the CPE in an on­hook state or in an off-hook state. The specifications f or
data transmission are given on SR-TSV-002474 which
are classified into three layers, ph ysical lay er, data link er
layer and message assemble layer. The MX93032-M1
only takes the responsibility to decode physical layer.
For Data link layer (Check Sum) and Message Assemble
layer (the meaningful data), system should take care.
The performance test associated with physical layer
based on SR-3004 will be given on Appendix A.

Note: CPE: Custom Premises Equipment

SPCS: Stored Program Controlled Switching
System

CAS Detection

For Calling Identity Deliv ery on Call Waiting, the MX93032­M1 will monitor the presence of CPE alerting signal ac­cording to the specification given on Bellcore Special
Report SR-TSV-002476.

VOX DETECTION (DIGITAL VOICE ACTIVATED RE­CORDING)

The speech detection is implemented on the MX93032­M1 to indicate whether the recording signal level is above
the VOX threshold. If the control prog r am sets the VO X
Record bit on Initial command, the recording of the speech
would start when the voice activity is detected. The HOST
has to set V O X threshold by issuing command Mode 13.
Hexadecimal numbers f or V OX threshold are listed in T able

6.

SPEAKERPHONE

The speaker system provided by the MX93032-M1 con­tains two adaptive filters which are called as acoustical
echo canceller (AEC) and line echo canceller (LEC). The
purpose of AEC is used to cancel the acoustical echo
between microphone and speaker which is caused by
the sound reflection within space. A LEC cancels the
echo resulted by the 4 to 2 wire telephone line connec­tion and impedance mismatches between customer pre­mises and the central office.

When speakerphone is activated, the algorithms associ­ated with AEC and LEC not only reduce the echo heard

on the both ends, but also prevent feedback instability
(singing) from occurring. Moreove r, the MX93032-M1 pro­vides automatic gain control (AGC) for microphone chan­nel which helps the outgoing voice to keep at a desired
level especially f or a moving talk er, and speak er volume
control which allows the user to adjust the speaker vol­ume for his need. In addition, DTMF/Tone generations
and call-progress tone detection are also provided.

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MX93032

DAA CONSIDERA TION FOR SPEAKER PHONE

It should be emphasized that DAA circuit pla ys an important role on improving the performance of speakerphone. This
sub section gives some guides on how the D AA circuit may be "tuned". A diagram of D AA circuit must be given for
simplifying the flowing interpretation.

Referring to figure given above, we have 4 analog amplifiers which are

1.Microphone Pre-Gain (MIC GAIN)

2.Line Out Gain (LINE DRV)

3.Line in Pre-Gain (LINE GAIN)

4.Speaker amplifier (SPK DRV)

Obviously, the 4 amplifiers together with the Line Out volume, Speaker Volume, receive attenuator , transmit attenu­ator, two volume compensators, acoustical coupling function Hac(f) and line coupling function Hlin(f) compose a
closed loop system. The AEC and LEC will pro vide additional attenuation to the loop gain one they con verge .

To have a better performance on speaker phone, w e strongly recommend that analog gain of D AA must satisfy the
following two criteria:

1.As the near end (Microphone side) speaks only , the lev el at Codec 2 should fulfill that, "codec 2 input must
be less than Codec 2 output due to electrical echo". This meaning can be e xpressed as

LINE_DRV * Hlin(f) * LINE_GAIN < 1

2.As the far end (Line Side) speaks only, the level at Codec 1 should fulfill that, "Codec 1 output must be
greater than Codec 1 input resulting from acoustical echo". This meaning can be expressed as

SPK_DRV * Hac(f) * MIC_GAIN < 1

By considering the criterion 1, it should pay more attention that minimum echo should be reached by improving the
telephone line interface ( that is, reducing Hlin(f)) and not by reducing LINE_GAIN due to that the MX93032-M1 must
obtain the high enough signal to process. For the same reason for criterion 2, the low echo should be achieved by
good acoustical and mechanical decoupling rather than by decreasing MIC_GAIN.

The ultimate target for hardware design is to create one system which not only satisfies two criteria given above, but
also provides a desirable volume to both speaker and telephone.

CODE C1

MX93032-M1

SPK
DR V

MIC

GAIN

AC OU STIC
COUP L ING

CODE C2

LINE

GAIN

LINE

DR V

4 - 2 WIRE
COUPLING

LINE

COUPLING

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MX93032

QUER Y AND REPORT

The MX93032-M1 is capable of reporting to the control program about the query of the current status , such as the
number of recorded messages, the number of new messages, the number of old messages, the available recording
time of FLASH, the time of recorded message, and the FLASH good/bad check.

POWER DO WN

With the power of backup batteries, the MX93032-M1 is capable of keeping messages and data stored in the FLASH
during power failure. In power down mode, the MX93032-M1 will run at a lower clock rate to reduce power consump­tion.

CRYST AL CONNECTION

The MX93032-M1 allows two ways of crystal connections :

1. Normal approach: use both high crystal (32.256 MHz) and low crystal (32768 Hz). T o enab le this mode, the FLLEN\
(54) pin must be connected to VDD. In this mode, the DSP high clock is gener ated from the high crystal directly,
and the low crystal is mainly used in power down mode.

2. FLL (F requency-Lock ed-Loop) approach: use only low crystal (32768 Hz). To enable this mode, the FLLEN\ (54) pin
and X2 (89) pin must be connected to ground and the X1 (88) pin to VDD . In this mode , the low crystal is to generate
all the DSP system clocks and the high crystal can be saved to reduce the overall system cost.

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MX93032

7.0 OPERATIONAL DESCRIPTIONS

When the system is powered up, the RST\ pulse will make the MX93032-M1 to run programs from address 0. After
check sum of internal ROM codes checked and some essential initialization of DSP are finished. In MCU mode, the
MX93032-M1 is ready to poll the command issued by the HOST and indicate the HOST by setting PACK\ or SI\ to be
low . The HOST should poll the indication sent b y the MX93032-M1 and read out the pseudo response first. F ollowing
some necessary initialization given below must be set by HOST .

1. Set telephone data configuration

2. FLASH initialization depending on the FLASH good/bad check

3. Codec initialization if necessary

4. Setting V oice prompt configuration

5. Setting Silence threshold

6. Setting VO X level

8.0 MODES OF OPERATION

The MX93032-M1 supports 16 modes of operations, which are listed as follows :

Command Mode Mode Name

0 Idle Mode
1 Record
2 Play
3 Message Status
4 DTMF Generator
5 Line Monitor
6 Delete Message
7 Set Current Time/Voice Prompt/Silence Threshold
8 Get Current Time
9 Initial and Test Memory
10 Get Record Message Information
11 V oice Prompt
12 Speaker Phone
13 Personal Mail
14 T elephone Data
15 CAS Detection

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MX93032

IDLE :

This command is allowable to be issued within any other operation which is processing. As soon as the MX93032-M1
receives Idle command, the original operation will be stopped automatically .

RECORD

When Record command is received from the HOST, the MX93032-M1 performs speech compression, stores the
message into FLASH, and monitors telephone line. If the V O X Record bit had been set to 1 on Initial and Test Memory
command, recording of the speech will start upon the voice activity detected, else the MX93032-M1 starts recording
immediately after Record command is received.

Clearing Marked Record (bit 8-10) to 0, if it is recording ICM. When recording OGM, the HOST should set Marked
Record (bit 8-10) to desired number other than 0 as OGM ID .

Setting bit 5 (Annc Del) to 1 on Initial and Test Memor y command, the HOST can choose to delete the old OGM
before a new one is recorded. If that bit is cleared to 0, the ne w OGM recording can be aborted without losing the old
OGM by issuing Mark Fail (bit 11) on Record command.

During recording, the HOST can pause the recording by setting Pause (bit 7) to 1 and resume recording b y clearing
that bit. Line monitoring will continue during pause.

The HOST can stop recording by setting Stop (bit 6) to 1, and delete the last n*400ms/200ms from the memory by
using a Record command with assigned Tail Cut factor (bit 0-5).

While system memory is full, MX93032-M1 will stop message recording, show the status in response word (bit 7,
Mfull).

During Record mode, the HOST can instruct the MX93032-M1 to generate a tone by issuing the DTMF Generator
command. Setting Stop bit on DTMF Generator command will stop tone generating.

The MX93032-M1 will terminate Record mode when Stop bit on Record command is set to 1.
Note: The MX93032-M1 supports up to 127 incoming and outgoing messages recording which are labeled as Msg ID

1-127. The Msg IDs of incoming message are labeled chronologically and rearranged automatically after record­ing. Although ICM could range from Msg ID 1 to 127, Msg IDs 127 to 121 are the only places for outgoing
message storage. So, it is strongly suggested that the HOST should keep an upper bound of the number of
ICM. (For example, upper bound of ICM = 127 - maximum OGM number that will be applied in user's specifica­tion.)

PLA Y

When Play command is received from the HOST, the MX93032-M1 performs message playback and line monitoring.
The Msg ID (bit 0-6) is set by the HOST to specify which message to play. To playback new message (non-played
one), set Play New (bit 10) to 1, then the MX93032-M1 will search to play the non-played message with specified Msg
ID. During playing, the HOST can pause playback by setting Pause (bit 8) to 1 and resume playing from the same
point by clearing that bit. Line monitoring will continue during pause. To fast playback a recorded message, set Fast
Play (bit 11) to 1 and the playing speed will be up to 33%.

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MX93032

To delete and stop the playing message, the HOST can set Del Mark (bit 7) on Play command. After being tagged a
"Del Mark" the marked message is not really deleted until a Real Del (Delete Message mode bit 8) is set. The Real Del
command not only deletes the messages that have been tagged a "Del Mark" but also changes the status of those
ICMs that have been pla yed to old. The ICMs that ha ve not been play ed before are regarded as "new". After Real Del
is issued, all new/old ICM Msg IDs will be rearranged.

For the HOST, it is used to issue the Real Del after the user terminates the manner of playback.
The response word contains the information of tones detected from the line, playing time spent (bit 8-15) and End of

play flag (bit 6), which indicates the end of the current message. When the Pla y End bit is 1, the MX93032-M1 stops
playback.

The MX93032-M1 will terminate Play mode when Stop bit or Del Mark bit is set to 1 on Play command.

MESSAGE ST ATUS

In this mode, there are 6 request codes for the HOST to get message information;

1. Get the number of personal recorded messages (request code = 0)

2. Get the number of personal new messages (request code = 1)

3. Get the number of personal old messages (request code = 2)

4. Get the available recording time with unit of second (request code = 3)

5. Get the number of total recorded messages (request code = 8)
The result will be reported in the response word.

DTMF GENERA TOR

In this mode, up to double tones can be generated by the MX93032-M1. The tone levels and frequencies are program­mable and controlled by the HOST. The DTMF Gener ator command defines the output gains in bit 0-3 for the 1st tone,
and bit 4-7 for the 2nd tone. Each tone can be programmed from 3 dB (gain code 0000) to -25 dB (gain code 1110) with
2 dB resolution. For DSP mode, the frequencies are defined in the variables BUF1 and BUF2. For MCU mode, three
steps of commands should be issued, first, DTMF sent and signal Gain should be set, following the corresponding
two frequencies should be specified. The frequency code and its frequency represented is according to the f ollowing
relationship :

frequency code = desired frequency (Hz) * 8.19
f(n) = 32767 * cos (2*pi*f_code*n/(8000*8.19))
where f_code is the input frequency code, n is sequence index and 8000 is the sampling rate

For single tone, Codec outputs the signal s(n) :

s(n) = gain * f(n)

For dual tone, Codec outputs the signal s(n) :

s(n) = 0.5 * (gain1*f1(n) + gain2*f2(n))

To generate a single tone, the gain code of the other tone should be set to 1111. The MX93032-M1 star ts tone
generation only after receiving the start command.

The MX93032-M1 will terminate DTMF Generator when Stop bit is set to 1 on DTMF Generator command.

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MX93032

LINE MONITOR

In this mode the MX93032-M1 monitors the telephone line signal for the detection of DTMF, Call Progress Tone, V O X,
and/or Continuous Tone. The MX93032-M1 keeps monitoring the line until Stop bit is set to 1.

The MX93032-M1 returns to the HOST a response word that reflects the flag of Call Progress Tone, VO X, Continuous
Tone and the index of DTMF signal that has been detected :

INDEX DTMF CODE INDEX DTMF CODE
CAS DTMF CAS DTMF
0 0000 No T one 0 1001 9
0 0001 1 0 1010 *
0 0010 2 0 1011 0
0 0011 3 0 1100 #
0 0100 4 0 1101 A
0 0101 5 0 1110 B
0 0110 6 0 1111 C
0 0111 7 1 1111 D
0 1000 8 1 0000 CAS TONE

The MX93032-M1 will terminate Line Monitor mode when Stop bit is set to 1 on Line Monitor command.

DELETE MESSAGE

This mode provides an immediate way to delete messages as follows;

1. To delete a specified message, set its Msg ID in bit 0-6 and clear bit 11, 10 and 7 to zero.

2. T o delete a specified ne w ICM, set Del New Msg (bit 10) to 1, give the New Msg ID in bit 0-6, clear bit 11, 7 to z ero.

3. To delete all old ICM, set Del All Old (bit 7) to 1 and clear bit 11, 10 to zero. (Bit 0-6 is ignored)

4. T o erase the "Del Mark" from a specified ICM ("Del Mark" is a tag set on Play command f or deletion), set Del Mark
Clr (bit 11) to 1, give the Msg ID in bit 0-6 and clear bit 7 to zero .

SET CURRENT TIME/V OICE PROMPT/SILENCE THRESHOLD

In this mode the HOST can set the current time to the timer clock of the MX93032-M1. The time inf ormation includes
second, minute, hour and week. The timer in the MX93032-M1 will be used to stamp time and data to the recorded
message.

1. To set second, put the data in bit 0-7 and use request code (bit 8-11) 0000.

2. To set minute, put the data in bit 0-7 and use request code (bit 8-11) 0001.

3. To set hour, put the data in bit 0-7 and use request code (bit 8-11) 0010.

4. To set week, put the data in bit 0-7 and use request code (bit 8-11) 0011.

5. To set voice prompt configuration, put the selection data in bit 0-1 and use request code (bit 8-11) 0110.

6. To set silence threshold level, put the data in bit 0-3 and use request code (bit 8-11) 0111.

7. T o set output port OPT0-7, put data in bit0-7(Request Code=0100)

8. T o set codec MX93002 registers in bit10-8 and put data in bit0-7(Request Code=1xxx)

9. To write link index and data in bit0-7(Request Code=0101), refer to mode10 to specify Msg. ID .

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MX93032

GET CURRENT TIME

In this mode the HOST can get the current time from the timer clock of the MX93032-M1. The time infor mation
includes second, minute, hour and week.

1. T o get second, use request code (bit 8-11) 0000.

2. To get minute, use request code (bit 8-11) 0001.

3. T o get hour , use request code (bit 8-11) 0010.

4. T o get w eek, use request code (bit 8-11) 0011.

The requested data will be reported in the response word.

INITIAL AND TEST MEMOR Y

In this mode there are 9 functions for the control program to define;

1. FLASH Re-Initialization

The HOST can re-initialize the FLASH by setting FLASH Re-Init (bit 0) to 1. After receiving this command, the
MX93032-M1 will erase all the messages and data stored in the FLASH and then re-format the FLASH to establish
the management structure. The response word reported to the control program contains the information of FLASH bit
size (bit 0-3) , FLASH address size (bit 4-7), FLASH good/bad status (bit 8) and FLASH good rate (bit 9-15). After re­initialization, all messages and data in the FLASH are lost.

2. FLASH Initialization or Error Correction

The HOST can perform FLASH first-time initialization or error correction by setting FLASH Init (bit 1) to 1. First-time
initialization is to format a new FLASH and then establish the management structure, while error correction is to
correct the problems that may result from pow er loss during operation. This function is normally used after first power­up of the system. The response word reported to the control program contains the inf ormation of FLASH bit size (bit
0-3) , FLASH address size (bit 4-7), FLASH good/bad status (bit 8) and FLASH good rate (bit 9-15).

3. FLASH Garbage Collection

Due to the characteristics of MX29F16A FLASH and the management structure, when messages are deleted, the
data regions occupied by them will not be released to be av ailable immediately . To free out such regions, the MX93032­M1 provides a two-step mechanism. First is to check the FLASH garbage collection recommendation status by
Message Status command and, if garbage collection is recommended, then to issue bit 2 (Garbage Collect) on this
command to perform the corresponding garbage collection actions.

4. Line On/Off

The HOST should set Line On/Off (bit 3) to 1 if the system is logged in from telephone line, and clear that bit to 0 if
in local keypad operation. Failing to set this bit properly will degrade the performance of echo cancellation.

5. V O X On/Off Record

If the HOST turns on the V OX Record function (b y setting bit 4 to 1) on this command, speech recording will start upon
the voice activity detected, else recording will start immediately after Record command is issued.

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MX93032

6. OGM Deletion

By setting bit 5 (Annc Del) to 1 on this command, the HOST can choose to delete the old OGM before recording a new
one. If that bit is cleared to 0, the old OGM is not deleted until the new OGM recording is completed. With this option,
the new OGM recording can be aborted without losing the old OGM by issuing Mark Fail (bit 11) on Record command.

7. New/Old Select

By setting New/Old Select (bit 6), the HOST can decide which condition a new message will be changed to an old one.
There are two options. When this bit is set to 1, the new message that has been played (even not played end) is
regarded as an old message. If this bit is cleared to 0, the new message that has been played end is regarded as an
old one.

8. Tail Cut Unit

By setting Tail Cut Unit (bit 7) to 1, the HOST can choose the tail cut unit length to be 200 ms. If this bit is cleared to
0, the unit length is 400 ms.

9. Old Mark Set

By setting Old Mark Set (bit 8) to 1, the HOST can disable that new messages change to be old ones even though
they have been played (end). If this bit is cleared to 0, new to old change will be enabled and the change criterion is
according to the setting of New/Old Select bit (bit 6).

GET RECORD MESSAGE INFORMA TION

In this mode, there are 10 request codes for the control program to get the related information about a specified
message.

Given the Msg ID (bit 0-6) and New Msg flag (bit 7), the MX93032-M1 can provide message recording time, recording
length, attribute and "Del Mark" status according to the Request Code (bit 8-11) as follows :

1. Get the recording time - second. (Request Code = 0000)

2. Get the recording time - minute. (Request Code = 0001)

3. Get the recording time - hour. (Request Code = 0010)

4. Get the recording time - week. (Request Code = 0011)

5. Get the recording length (sec.). (Request Code = 0100)

6. Get the timer status. (Request Code = 0101). The response word is 1 if the MX93032-M1 timer has been set before

with Set Current Time command. Otherwise, the response w ord is 0.

7. Get the message ICM/MEMO attribute. (Request code = 0110). T o sho w the specified message is of MEMO type

(response word = 1) or ICM type (response word = 0).

8. Get the Del Mark status (Request Code = 0111). To check if the specified message has been tagged a Del Mark

(response word = 1) or not (response word = 0).

9. Get the message new/old status. (Request Code = 1000). To check if the specified message has been tagged an

Old Mark (response word = 1) or not (response word = 0). A new message will be tagged an Old Mark when it has
been played/played end and changes to old messages as Real Del command is issued.

10.Get the OGM existing status (Request Code = 1111). To check if the specified OGM exists (response word = 1) or

not (response word = 0). Msg ID could only range from 127 to 121.

11.T o get link index data(Request Code=1001),refer to mode7

12.T o set the Msg. ID for reading/writing Link-index-data.(Request Code=1010)

All the results are reported in the response word.

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MX93032

VOICE PROMPT

In this mode the MX93032-M1 plays back a speech segment that the corresponding phrase number is given in
command bit 0-7. Up to 255 speech segments , previously stored in voice prompt R OM or Flash memory , are provided
by the MX93032-M1 and pronounced using the speech decompression algorithm. The HOST can pause the playbac k
by setting Pause (bit 8) to 1 or resume from pause b y clearing Pause bit to 0. Fast forward playback of v oice prompt
is also provided by setting F ast Play (bit 11) to 1. During Voice Prompt mode, the MX93032-M1 keeps monitoring the
line signal and sends the results in response word to the control program.

The MX93032-M1 will terminate Voice Prompt mode when Stop bit is set to 1 on V oice Prompt command.

SPEAKERPHONE

Regarding to speakerphone related function is comprised of three types which are parameter setting, DTMF/Tone
generation and free run. Two Codecs are necessary for speakerphone operation. One Codec labeled as Codec 1 is
used for microphone and speaker , and the other labeled as Codec 2 is used for telephone line input and output. In this
mode, there are seven functions whose detail will be given as follows:

1. Free run which performs both filtering operation and updating operation on LEC and AEC one time for each Codec

interrupt triggered (Request Code = 0x0000)

2. Setting the gain for DTMF/T one generation (Request Code = 0x0001)

3. Generating DTMF/T one according to pre-defined table (Request Code = 0x0010)

4. Setting both the echo return-loss on speaker side (ERL_AEC) and echo return loss on line side (ERL_LEC)

(Request Code = 0x0100)

5. The T/R and R/T ratio are used to decide which side is speaking by comparing the transmitting and receiving

energy .(Request Code=0x0110)

6. Set the volume gains to control the speaker out and line out signal levels(Request Code=0x1000)

7. The loop attenuation is to control the total receive and transmit attenuators (Request Code = 0x1001)

8. setting the tone table which require 3 steps : Index set, F req_Lo set and F req_Hi set.

PERSONAL MAIL

Five functions are provided in this command as follows :

1. Set the personal mailbox number

In this mode the HOST can select one out of eight mailboxes (setting in bit 0-2) for recording messages, playing
recorded messages and retrieving message time. Each mailbox manages its own messages and Msg IDs.
Make sure to set the desired mailbox bef ore issuing the message related commands such as Record, Pla y, Delete
Message and Get Record Message Information.

2. Set the recording message attribute

Before recording a message, the HOST can set the attribute of that message to be MEMO or ICM. Clear bit 3 to zero
for recording a message as an ICM or set bit 3 to one for recording a message as a MEMO .

3. Set the digital loop back control

The HOST can enable or disable the DSP digital loop back path in Record or Line Monitor operation. By setting Loop
Back bit to 1, the loop back path is disabled and the signal received from the codec input will not be transmitted back

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MX93032

to the codec output. When this bit is cleared to 0, loop back is enabled and the receiv ed signal will be transmitted back
to the codec output. The default status is the latter.

4. Set the output level

The HOST can set the level difference between the output (playback) speech and the corresponding input (recorded­in) speech. By setting the Output Level bit to 1, the output speech level is equal to the input speech level, and clearing
this bit to 0, the output speech level is about 5dB less than the input speech level. The default status is the latter.

5. Set the codec data format

The HOST can select one of two Codec data formats by setting the Codec Format bit. When Codec F ormat is cleared
to 0, 8-bit m-law data format is selected, and set to 1, 16-bit linear data format is enabled. At present, MXIC’s Codec
family provide both m-law and linear f ormats, and the latter is suggested because of the better speech quality. The
default format is 8-bit m-law.

6. Set Voice Activity

In this mode the HOST can set the VOX threshold in bit 0-11. The hexadecimal numbers for VOX le vel are listed in
T ab le 6.

7. Set Telephone Data Configuration

This command should be issued before Aflash initialization.

CAS Detection

The MX93032-M1 provides 2 output modes for CAS detection, which are continuous response and one time re­sponse.
For continuous response, the MX93032-M1 will respond CAS detected after 45± 5ms since CAS occurs in CPE.
Regarding to response one time, the information of CAS detected will be responded after both the CAS is disappeared
on the line and the duration for CAS appearance between 45ms to 95 ms.

FSK Detection

The output of FSK detector can be divided into two mode which are Raw data mode and Cooked data buffer. The
buffer length f or Ra w data mode and Cooked Data mode are 8 b ytes and 60 bytes long, respectiv ely. For Raw data
mode, the data ready bit will be set on one bytes data ,in which start bit and stop bit are not included, received
correctly . If the host’ s speed can not catch up the FSK baudrate , buffer ov erflow will occur . Therefore , when the serial
interface is adopted, we do not recommend to select Raw data mode to receive FSK data. Cooked data mode
concerned, the data ready bit will be set after all of the data, in which checksum is included, received. During the
operation for Cooked data mode, the second data byte following the mark data will be considered as the total data
length, the other data will not be recognized by MX93032-M1.

LINKAGE BETWEEN CID D A T A AND V OICE MESSAGE

1. Set the link index which can be also considered as CID data number (Request code = 0x7500 | link index)

2 . Get the link index (Request code = 0xA900 | msg_no)
3 . write the link index specified by 0x7500 into message (Request code = 0xAA00 | msg_no)

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MX93032

TELEPHONE DA T A

In this mode the HOST can write/read telephone or user-assigned data to/from the FLASH with the sequence of
telephone data command as follows :

1. Write T elephone Data

The first command defines the telephone record ID (bit 0-7) and set bit 11, 10 to 0, 0.
Following command specifies the one-byte data to be stored under that ID.
While the current record ID is full, the MX93032-M1 BIOS will show the status in response word (bit 0, Full).
The MX93032-M1 BIOS will terminate Telephone Data mode when Stop (bit 9) is set to 1 on Telephone Data com­mand.

2. Read Telephone Data

The first command defines the telephone record ID (bit 0-7) and set bit 11, 10 to 0, 1. The telephone data will be put
on the response word. Following command puts the one-byte data on the response word to the control program.
The response word contains the byte-data (bit 0-7) and Read End (bit 8). When the Read End bit is 1, the byte-data is
invalid.
The MX93032-M1 BIOS will terminate Telephone Data mode when Stop (bit 9) is set to 1 on Telephone Data com­mand.

If host want to write/read more than 2 Tel. Record IDs at the same time, Before writing/reading an ne w T el. ID, host
should set STOP bit to 1 f or the current T el. ID.

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9.0 COMMAND FORMAT AND PROTOCAL

Mode 0. IDLE MODE

(15-12)

0000

CONF

00000000000

0000000000000000

0000000000000000

STOP

(11-1)

0

(15-12)

RESP

(11-1)

0

Mode 1. RECORD MODE

(15-12) (11) (10-8) (7) (6)

0001

MARK

FAIL

MARKED
RECORD

P A USE STOP

CONF

TAIL CUT

(5-0)

TAIL CUT : 0 ~ 63 units. One unit length can be 400ms or 200ms (set by Mode 9).
ST OP = 1 : stop recording.
PAU SE = 0 : continue recording.

= 1 : pause recording.

MARKED RECORD

= 000 : record a general message.
= 001 : record OGM1 and store it in message 127.
= 010 : record OGM2 and store it in message 126.
= 011 : record OGM3 and store it in message 125.
= 100 : record OGM4 and store it in message 124.
= 101 : record OGM5 and store it in message 123.
= 110 : record OGM6 and store it in message 122.
= 111 : record OGM7 and store it in message 121.

MARK FAIL =1 : give up and stop recording of the new OGMx and recover the original OGMx. If Mode 9 ANNC

DEL=1, this bit will be ignored.
When MARKED RECORD = 000, do not set this bit.

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(15-9) (8) (7) (5)(6) (4)

RECORD TIME (sec) CAS MFULL

VOX

TONE

CONT
TONE

RESP

DTMF

(3-0)

DTMF : the detected DTMF value during recording.
CONT TONE = 1 : continuous tone is found.
T O NE = 1 : call progress tone is found.
VOX = 1 : the input speech po wer le v el is under the VOX LEVEL (set b y Mode 12).
MFULL = 1 : ARAM is full and no further recording is possible. In this case, one more

STOP command is needed to completely stop the recording action.
RECORD TIME : recording time until now, 0 ~ 127 sec.
CAS : CAS detection for CIDCW (detail see mode 15 )

If CAS tone and DTMF D are existed at the same system, the Host should Check if bit8(CAS) == 1

and bit3-0(DTMF) =0000, and then that's a real CAS Tone. Refer to the f ollowing table .

DTMF Reference T able:

INDEX DTMF CODE INDEX DTMF CODE
CAS DTMF CAS DTMF
0 0000 No Tone 0 1001 9
0 0001 1 0 1010 *
0 0010 2 0 1011 0
0 0011 3 0 1100 #
0 0100 4 0 1101 A
0 0101 5 0 1110 B
0 0110 6 0 1111 C
0 0111 7 1 1111 D
0 1000 8 1 0000 CAS TONE

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MX93032

Mode 2. PLAY MODE

(15-12) (11) (10) (9) (8) (7)

0010

FAST
PLA Y

PLA Y
NEW

P AUSE STOPSTOP

CONF

MSG ID

(6-0)

(15-9) (8) (7) (5)(6) (4)

PLA Y TIME (sec) CAS 0

PLA Y

END

TONE

0

RESP

DTMF

(3-0)

MSG ID = 1 ~ 127 can be assigned for playing.
DEL MARK = 1 : stop playing and mark the current message with a "Del Mark". This message will not be deleted

until the Mode 6 REAL DEL command is done.
PAU SE = 0 : continue playing.

= 1 : pause playing.
ST O P = 1 : stop playing.
PLAY NEW = 0 : the MSG ID is related to total messages.

= 1 : the MSG ID is related to new messages.
F AST PLAY = 0 : normal play speed.

= 1 : play speed will be up to 33%.

DTMF and T ONE : see RECORD MODE.
PLA Y END = 1 : the current message is played end.
PLAY TIME : playing time until now, 0 ~ 239 sec.
CAS : CAS detection for CIDCW (detail see mode 15 and mode1)

Mode 3. MESSA GE ST ATUS MODE

(15-12)

0011

CONF

00000000000

DATA

REQUEST CODE

(11-4)

(15-0)

(3-0)

RESP

REQUEST CODE:

REQUEST CODE STA TUS D A TA

0000 number of personal total messages 0 ~ 127
0001 number of personal new messages 0 ~ 127
0010 number of personal old messages 0 ~ 127
0011 available time 0 ~ 65535
0101 garbage collection recommendation 0 or 1
1000 number of total messages 0 ~ 127

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MX93032

Mode 4. DTMF GENERA T OR MODE

For DSP mode:

GAIN1, GAIN2 : 0 ~ 14 denote 3dB ~ -25dB (2dB/one step), 15 denotes no related signal.
T O =0 OUTPUT CHANNEL CODEC 0.

=1 OUTPUT CHANNEL CODEC1.
ST OP = 1 : stop the DTMF generation.
START = 1 : start the DTMF generation. When this bit is set, GAIN1 and GAIN2 must be also set and

Frequency 1 is put in BUF1 (data address 7) and Frequency 2 in B UF2 (data address 8).

16-bit Frequency = target frequency * 8.192
Note :

For single-tone signals (GAIN1 = 15 or GAIN2 = 15), the output level is according to GAIN1 or GAIN2. But for dual­tone signals, the output level is equal to half of sum of two individual signals. Doing this can avoid saturation of output
signals.

(15-12) (11) (10) 9 8 (7-4)

0100

ST ART

STOP

0 GAIN2TO

CONF

GAIN1

(3-0)

0000000000000000

(15-0)

RESP

For MCU mode:

(15-12) (11) (10) 9 8 (7-4)

0100

ST ART

STOP

0 GAIN2TO

CONF

GAIN1

(3-0)

GAIN1, GAIN2 : 0 ~ 14 denote 3dB ~ -25dB (2dB/one step), 15 denotes no related signal.
T O =0 OUTPUT CHANNEL CODEC 0.

=1 OUTPUT CHANNEL CODEC1.
ST OP = 1 : stop the DTMF generation.
START = 1 : start the DTMF generation. When this bit is set, GAIN1 and GAIN2 must be also set and

Frequency 1 and F requency 2 is put in the f ollowing command.

16-bit Frequency = target frequency * 8.192
Note :
For single-tone signals (GAIN1=15 or GAIN2=15), the output level is according to GAIN1 or GAIN2. But for dual-tone
signals, the output level is equal to half of sum of two individual signals. Doing this can avoid saturation of output
signals.

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MX93032

Frequency 1

(15-0)

CONF

(15-0)

RESP

0000000000000000

0000000000000000

Frequency 2

(15-0)

CONF

(15-0)

RESP

0000000000000000

(15-0)

RESP

(15-12) (11-8) (7) (6-1)

0101

0000

PAUSE 000000

CONF

STOP

(0)

(15-9) (8) (7) (6) (5) (4)

0000000

0CAS

VOX

CONT
TONE

TONE

RESP

DTMF

(3-0)

Mode 5. LINE MONIT OR MODE

ST OP = 0 : start and continue the line monitor mode.

= 1 : stop the line monitor mode.

DTMF, CONT TONE, TONE, PAUSE, V O X and CAS: see RECORD MODE.

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MX93032

Mode 6. DELETE MESSA GE MODE

MSG ID : 1 ~ 127.
DEL ALL OLD = 1 : delete all old messages. (in this case, the MSG ID field is ignored)
REAL DEL = 1 : delete the messages that have "Del Mark" and change the new messages that have been

played to be old messages.

(in this case, the MSG ID filed is ignored)
DEL NEW MSG = 0 : the MSG ID is related to total messages.

= 1 : the MSG ID is related to new messages.
DEL MARK CLR= 1 : clear the message "Del Mark" (set by Mode 2 DEL MARK=1).

(15-12) (11) (10) (9) (8) (7)

0110

DEL

MARK

CLR

DEL
NEW
MSG

DEL
ALL
OLD

REAL

DEL

0

CONF

MSG ID

(6-0)

(15-12)

0110

RESP

000000000000

(11-0)

Mode 7. SET CURRENT TIME/VOICE PR OMPT/SILENCE THRESHOLD MODE

(15-12)

0111

RESP

000000000000

(11-0)

(15-12)

0110

CONF

REQUEST CODE DATA

(11-8) (7-0)

REQUEST CODE:

TIME REQUEST CODE D ATA

SECOND 0000 0 ~ 59
MINUTE 0001 0 ~ 59
HOUR 0010 0 ~ 23
WEEK 0011 0 ~ 6
SET OUTPUT PORT 0100 00 ~ FF H
SET LINK INDEX 0101 00 ~ FF H
VOICE PROMPT CONFIG 0110 0 ~ 7
SILENCE THRESHOLD 0111 0 ~ F H
SEND MX93002 CMD 93993000(A) CMD 1xxx 00 ~ FF H

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MX93032

Request Code = 0110 (set voice prompt configuration),

(15-12)

0110

CONF

0110

00000

FVOP

SELECT

EVOP

SELECT

IVOP

SELECT

(11-8) (7-3) (2) (1) (0)

IVOP SELECT (internal voice prompt setting),

= 0 : internal voice prompt not selected.
= 1 : internal voice prompt selected and test.

EVOP SELECT (e xternal voice prompt setting),

= 0 : external voice prompt not selected.
= 1 : external voice prompt selected and test.

FVOP SELECT (FLASH voice prompt setting),

= 0 : FLASH voice prompt not selected.
= 1 : FLASH voice prompt selected and test.

(15-5)

00000000000

RESP

EVOP

ADDR

EVOP

STATUS

IVOP

STATUS

(4) (3) (2) (1) (0)

EVOP

UNIT

FVOP

STATUS

IVOP STA TUS (internal voice prompt test status),

= 0 : test fail.
= 1 : test ok.

EVOP STATUS (external voice prompt test status),

= 0 : test fail.
= 1 : test ok.

FVOP STA TUS (FLASH voice prompt test status),

= 0 : test fail.

= 1 : test ok.
(when EVOP STATUS = 1),
EV OP ADDR = 0 : external voice prompt at data space 1000H.

= 1 : external voice prompt at program space 8000H.
EVOP UNIT = 0 : external voice prompt in byte unit.

= 1 : external voice prompt in word unit.

Request Code = 0111 (set silence threshold level - used by the silence management algorithm),

(15-12) (11-8) (7-4) (3-0)

0111 0111 0000 SILENCE LEVEL

CONF

(15-0)

0000000000000000

RESP

SILENCE LEVEL : 0 ~ 15, the larger the level is, the more speech will be recognized as silence.

0 denotes no silence management.

Please refer to Table 7 for Silence Threshold Le vel.

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MX93032

Mode 8. GET CURRENT TIME MODE

REQUEST CODE, 0000 ~ 0011 : see Mode 7.

Mode 9. INITIAL AND TEST MEMORY MODE

(15-12) (11-8) (7-0)

1000 REQUEST CODE 00000000

CONF

(15-0)

DATA

RESP

(15-12) (11-9) (8) (7) (6) (5) (4) (3) (2) (1) (0)

1001 000

OLD

MARK

SET

TAIL
CUT
UNIT

NEW/

OLD

SELECT

ANNC

DEL

VOX

ON/OFF

RECORD

LINE

ON/
OFF

GARBAGE

COLLECT

FLASH

INIT

FLASH

RE-INIT

CONF

FLASH RE-INIT = 1 : re-initialize the FLASH. The information of FLASH size and FLASH good rate will be responded

in RESP. (Before this command is issued, Tel. Data Config., BIOS Mode 13 Sub-mode 3, should be
set properly .)

FLASH INIT = 1 : do FLASH first-time initialization or error correction after power loss. The information of FLASH

size and FLASH good rate will be responded in RESP. (Bef ore this command is issued, Tel. Data
Config., BIOS Mode 13 Sub-mode 3, should be set properly .)

GARBAGE COLLECT

= 1 : perform FLASH garbage collection. After garbage collection, more deleted (but not released)
data regions will be free out for further use.

LINE ON /OFF = 0 : not in remote line operation.

= 1 : in remote line operation.

VO X ON/OFF RECORD

= 0 : record the starting silence.
= 1 : not record the starting silence which power le vel is under VO X LEVEL.

ANNC DEL = 0 : delete the old OGMx after the new OGMx is recorded.

= 1 : delete the old OGMx before the new OGMx is recorded.

NEW/OLD SELECT (set the judgment point of message new/old attributes)

= 0 : one message that had been played end is viewed as an old message.
= 1 : one message that has been played (even not played end) is viewed as an old message.

TAIL CUT UNIT (set the tail cut unit)

= 0 : the tail cut unit is 400 ms.
= 1 : the tail cut unit is 200 ms.

OLD MARK SET= 0 : enable setting old mark.

= 1 : disable setting old mark. New messages will not change to be old even they have been played
(end). In this case, NEW/OLD SELECT will be ignored.

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MX93032

(15-9) (8) (7-4) (3-0)

FLASH ADDR SIZE FLASH BIT SIZEFLASH GOOD RATE

FLASH

G/B

RESP

FLASH BIT SIZE : the detected FLASH data bit number in one address access.
FLASH ADDR SIZE : the detected FLASH address space.
FLASH G/B (a conclusion of FLASH initialization or error correction),

= 0 : FLASH is bad.
= 1 : FLASH is good.

FLASH GOOD RATE : 0 ~ 100 %. It is significant when FLASH G/B = 1.

CODE FLASH ADDR SIZE CODE FLASH BIT SIZE
0000 0 M 0000 0
0101 1 M 1111 16
0110 2 M

Mode 10. GET RECORD MESSA GE INFORMA TION MODE

(15-12) (11-8)

(7)

(6-0)

NEW
MSG

MSG ID1010

REQUEST CODE

CONF

MSG ID : 1 ~ 127.
NEW MSG = 0 : the MSG ID is related to total messages.

= 1 : the MSG ID is related to new messages.

INFORMA TION REQUEST CODE DAT A

SECOND 0000 0000 ~ 003BH
MINUTE 0001 0000 ~ 003BH
HOUR 0010 0000 ~ 0017H
WEEK 0011 0000 ~ 0006H
RECORD LENGTH 0100 BIT 15 - BIT 0
TIMER ST ATUS 0101 0 = default timer ; 1 = timer has set
ICM/MEMO 0110 0 = ICM record ; 1 = MEMO record
DEL MARK ST ATUS 0111 0 = no del mark ; 1 = has del mark
MSG NEW/OLD ST ATUS 1000 0 = no old mark ; 1 = has old mark
GET LINK INDEX 1001 00~FFH
WRITE LINK INDEX (specified by 75XX) 1010 MSG ID=1~127
OGM EXISTING ST ATUS 1111 0 = OGM not exist ; 1 = OGM exist

(15-0)

DATA

RESP

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REV. 1.0.3, DEC. 13, 1999

MX93032

Mode 11. V OICE PR OMPT MODE

(15-12) (11) (10) (9) (8)

1011

FAST
PLA Y

P A USE

STOP

0

CONF

PHRASE NUMBER

(7-0)

(15-9)

(8) (7) (6) (5) (4)

PLA Y TIME(sec)

CAS

PLA Y

END

TONE

0

0

RESP

DTMF

(3-0)

PHRASE NUMBER : 1 ~ 255.
PAUSE, ST OP and FAST PLAY : see PLAY MODE.

DTMF, T ONE, PLAY END CAS and Play TIME : see PLAY MODE.

Mode 12. SPEAKERPHONE MODE

(15-12) (11-8) (7-0)

1100 REQUEST CODE

PARAMETERS

CONF

REQUEST CODE FUNCTION

0000 Free Run
0001 Gain Setting For T one
0010 Generate T one
0011 Reserved
0100 Set ERL
0101 Reserved
0110 Set T/R & R/T ratios
0111 Set T one T able *
1000 Set Speaker volume & line out gain
1001 Set Loop attenuation
1111 Read Internal Parameter (Reserved)
Others Reserved

* : Not available

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MX93032

Request Code = 0000 (Free Run)

(15-12) (11-8) (4-0)(5)(6)(7)

1100 0000

STOP

LINE

MUTE

SPK

MUTE

00000

CONF

ST OP = 0 : turn on speakerphone

= 1 : turn off speaker phone

LINE MUTE = 1 : mute line out

= 0 : normal line out

SPK MUTE = 1 : mute loudspeaker

= 0 : normal speaker out

(15-9) (2-0)(4-3)(7-6)(8) (5)

0000000

CAS

00

00TONE

LOOP

A TTENU ATION

RESP

T O N E = 1 : Call Prog ress Tone is detected
Loop Attenuation : see Set Loop Attenuation
CAS : CAS detection (see mode 15)

Request Code = 0001 (Set Gain for Tone)

(15-3) (2-0)

0000000000000

LOOP

A TTENU A TION

RESP

(15-12)

(11-8)

(7-4)

(3-0)

1100

0001

GAIN-LO, GAIN-HI:0~14 denote 0dB~-14dB; 15 denotes mute

GAIN-LO GAIN-HI

CONF

GAIN TABLE:

GAIN 01234567
dB 0dB -1dB -2dB -3dB -4dB -5dB -6dB -7dB
GAIN 8 9 A B C D E F
dB -8dB -9dB -10dB -11dB -12dB -13dB -14dB MUTE

38

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REV. 1.0.3, DEC. 13, 1999

MX93032

Request Code = 0010 (Send DTMF or Single Tone)

START = 1 : start to generate Tone according to the index assigned

= 0 : stop generating Tone

D or S = 0 : generate Single Tone (This bit is valid under bit 4 set)

= 1 : generate Dual Tone

(15-12)

(4-0)(7) (6) (5)

(11-8)

1100 0010

ST ART

0

D
S

INDEX

CONF

(15-9) (8) (7-3) (2-0)

0000000 CAS 00000

LOOP

ATTENUATION

RESP

INDEX TABLE:

Index Value Tone Index Value Tone

00000 DTMF_0 10000
00001 DTMF_1 10001
00010 DTMF_2 10010
00011 DTMF_3 10011
00100 DTMF_4 10100
00101 DTMF_5 10101
00110 DTMF_6 10110
00111 DTMF_7 10111
01000 DTMF_8 11000
01001 DTMF_9 11001
01010 DTMF_* 11010
01011 DTMF_# 11011
01100 DTMF_A 11100
01101 DTMF_B 11101
01110 DTMF_C 11110
01111 DTMF_D 11111

Note :
1 . The tone frequency whose index is specified form 10000 to 11111 can be stored into the ROM space with starting

address specified by the label "TONE_TAB". At the same time, the label "TONE_TAB" should be declared as
global.

2 . The legal index values for dual tone are just from 10000 to 10111. For dual tone mode, it will catch the frequency

specified by both the index and index+8.

39

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REV. 1.0.3, DEC. 13, 1999

MX93032

Request Code = 0100 (Set ERL)

(15-3) (2-0)

0000000000000

LOOP

A TTENU A TION

RESP

(15-12)

(11-8)

(7-4)

(3-0)

1100

0100

ERL_ACE:echo return loss occurred on speaker side
ERL_LEC:echo return loss occurred on line side

ERL_AEC ERL_LEC

CONF

ERL_AEC & ERL_LEC : Range from 0 to 30 with 2 dB/step

0000 00001 0010 0011 0100 0101 0110 0111
0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB
1000 1001 1010 1011 1100 1101 1110 1111
16 dB 18 dB 20 dB 22 dB 24 dB 26 dB 28 dB 30 dB

Note: The def ault value of ERL_LEC and ERL_AEC are 0 dB.

Request Code = 0110 (Set T/R & R/T ratio)

(15-3) (2-0)

0000000000000

LOOP

A TTENU ATION

RESP

(15-12)

(11-8)

(5-3)(7-6)

(2-0)

1100

0110

00

R/T

RA TIO

T/R

RA TIO

CONF

T/R & R/T RATIO

000 001 010 011 100 101 110 111
3 dB 6 dB 9 dB 12 dB 15 dB Reserved Reserved Reserved

Note : 12 dB is default value

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REV. 1.0.3, DEC. 13, 1999

MX93032

Request Code = 0111 (Set T one T able)

(15-0)

0000000000000000

RESP

(15-0)

0000000000000000

RESP

(15-12)

(11-8)

(7-4)

(3-0)

1100

Index: Range is from 0 to 15 (see Request Code=0010)

0110

0000

INDEX

CONF

(15-12)

(11-8)

(7-0)

1100

0111

FREQ_LO

CONF

(15-0)

0000000000000000

FREQ_HI and FREQ_LO will compose a 16-bit frequency, which is equal to "target Frequency *8.192".

RESP

(15-12)

(11-8)

(7-0)

1100

0111

FREQ_LO

CONF

Request Code = 1000 (Set SPK_GAIN & LINE _GAIN)

(15-3)

0000000000000

RESP

(15-12)

(11-8) (7-4) (3-0)

(2-0)

1100

LINE_GAIN:line out volume gain
SPK_GAIN:speaker out volume gain

1000

LINE_GAIN

SPK_GAIN

LOOP

ATTENUATION

CONF

SPK_GAIN & LINE_GAIN : Range from -20 to 20

0000 00001 0010 0011 0100 0101 0110 0111

-20dB -16 dB -12 dB -8 dB -4 dB 0 dB 2 dB 4 dB
1000 1001 1010 1011 1100 1101 1110 1111
6 dB 8 dB 10 dB 12 dB 14 dB 16 dB 18 dB 20 dB

41

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REV. 1.0.3, DEC. 13, 1999

MX93032

Request Code = 1001 (Set Loop Attenuation)

(15-3)

0000000000000

RESP

(15-12)

(11-8) (7-3) (2-0)

(2-0)

1100

1001

00000

LOOP

A TTENU A TION

LOOP

A TTENU A TION

CONF

Loop Attenuation (CONF) : Range from 0 to 28 with 4dB/Step

000 001 010 011 100 101 110 111

0.dB 4 dB 8 dB 12 dB 16 dB 20 dB 24 dB 28 dB

Full Duplex Smooth
Note:8dB is default value Half Duplex

Loop Attenuation (RESP) :

000 001 010 011 100 101 110 111

0.dB 4 dB 8 dB 12 dB 16 dB 20 dB 24 dB >28 dB

Request Code = 1111 (Read Internal Parameters)

(15-0)

RESP

(15-12)

(11-8)

(7-0)

1100

1111

Parameter Type

Parameter

CONF

Parameter Type Description

00000000 AEC_SNR1
00000001 LEC_SNR1
00000010 AEC_STATE
00000011 LEC_STATE
00000100 AEC_AERLE
00000101 LEC_AERLE
00000110 ACC_ATT
00000111 LEC_ATT
00001000 TR_MODE

42

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REV. 1.0.3, DEC. 13, 1999

MX93032

Read CODEC Register (Reference 93002)

(15-0)

RESP

(15-12)

(11-8) (7)

(6-0)

1100

1111

1

Parameter Type

Parameter

CONF

CODEC Register Description

0000000 Register 0
0000001 Register 1
0000010 Register 2
0000011 Register 3
0000100 Register 4
0000101 Register 5
0000110 Register 6
0000111 Register 7

Mode 13. PERSONAL MAIL MODE

(15-12)

(11-8) (7-5) (3)(4)

(2-0)

1101

0000 000

LOOP
BACK

MEMO
/ICM

PERSONAL

MAIL

CONF

PERSONAL MAIL : 0 ~ 7, total 8 personal mailbo xes. The MSG IDs of PLAY MODE,

DELETE MESSAGE MODE and GET RECORD MESSAGE INFORMATION
MODE are all limited to the personal mailbox specified by this command.

MEMO/ICM = 0 : set the attribute of the recorded message to be ICM.

= 1 : set the attribute of the recorded message to be MEMO.

LOOP BACK = 0 : enable loop back.

= 1 : disab le loop back. Then in RECORD and LINE MONIT OR modes,
the codec-in data will not be put on the codec-out path.

(15-0)

RESP

000000000000000

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REV. 1.0.3, DEC. 13, 1999

MX93032

Set Some Status,

(15-12)

(11-8) (6)(7) (3)(5-3)

(2)

(0)

1101

0001

CAS
SPK

0

COMPRESS
FORMAT

SILENCE
RATE

OUTPUT

LEVEL

CODEC

FORMAT

CONF

OUTPUT LEVEL

(set the relation of the output speech level and the corresponding input speech level)

= 0 : the output level is 5dB less than the input level (default setting).
= 1 : the output level (playback) is equal to the input level (recording).

CODEC FORMA T (set the Codec data format)

= 0 : 8-bit m-law data format is selected.
= 1 : 16-bit linear data format is selected.
(Note: Macronix MX93000 Codec family provide this mode.)

SILENCE RA TE

(set the silence storage rate, it is significant only when COMPRESS FORMAT = 000)

= 0 : silence storage rate is 0.8kbps. (default setting)
= 1 : silence storage rate is 4.8kbps.

COMPRESS FORMA T (select the speech compression algorithm for message recording)

= 000 : CELP 4.8kbps with silence compression.
= 001 : CELP 12.8kbps with silence suppression.
= 010 - 111 : reserved.

CAS SPK = 0 : turn off detecting CAS within speaker phone

= 1 : turn on detecting CAS within speaker phone

Set T elephone Data Configuration,

(15-12)

(11-8) (7-5) (4-2)

(0)(1)

1101

0011 000

TEL RECORD

NUMBER

01

CONF

TEL RECORD NUMBER : set the number of total telephone data records,

= 000 : 0 record (default setting).
= 001 : 63 records.
= 010 : 126 records.
= 011 : 189 records.
= 100 : 252 records.

(15-0)

RESP

000000000000000

(15-0)

RESP

000000000000000

44

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REV. 1.0.3, DEC. 13, 1999

MX93032

V oice Activity Mode,

(15-12)

(11-8) (7-6) (5-0)

1101

0111 00

VOX Level

CONF

VO X LEVEL : see Table 6.

Mode 14. TELEPHONE D A T A MODE

WRITE TELEPHONE DA TA

(15-12)

(11-10) (9) (8)

(7-0)

1110

TEL RECORD ID:1~255, each telephone record has maximum 60 bytes.
STOP =1:stop telephone data writing.

FULL=1: no free telephone record is available.

00 STOP 0

TEL RECORD ID

CONF

(C1)

(15-12)

(11-10) (0)

(9-1)

1110

00

000000000

FULL

RESP

(R1)

(15-12)

(11-10) (9) (8)

(7-0)

1110

DATA : the telephone data to write.
STOP =1:stop telephone data writing.

FULL =1:current telephone record is full.

00 STOP 0

DATA

CONF

(C2)

(15-12)

(11-10) (0)

(9-1)

1110

00

000000000

FULL

RESP

(R2)

(15-0)

RESP

000000000000000

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REV. 1.0.3, DEC. 13, 1999

MX93032

READ TELEPHONE DATA

(15-12)

(11-10) (9) (8)

(7-0)

1110

01 STOP 0

TEL RECORD ID

CONF

TEL RECORD ID : 1 ~ 255.
ST OP = 1 : stop telephone data reading.

(15-12)

(11-10) (9) (8)

(7-0)

1110

00 0

READ
END

DATA

RESP

D AT A : the read out telephone data.
READ END = 1 : end of the current telephone record and the f ollowed DA TA is invalid.

Mode 15. CALLER _ID MODE

(15-12)

(11-9)

(8-0)

1111

REQUEST

CODE

P ARAMETER

CONF

REQUEST CODE FUNCTION

00 0 Demodulate FSK
10 0 Set Response method of CAS detected
101 Set CAS sensitivity
00 1 ACK DTMF A
01 0 ACK DTMF D

Request Code = 000 (Demodulate FSK T o RA W DATA)

(15-12)

(11-8) (8) (7-2)

(0)(1)

1111

000

0

000000

TYPE START\

CONF

TYPE = 0 : CID TYPE I 200 bits channel seizure & 10 bits mark signal

= 1 : CID TYPE II 10 bits mark signal

START\ = 0 : Start / Continue to Demodulate

= 1 : Stop Demodulating

46

P/N:PM0689

REV. 1.0.3, DEC. 13, 1999

MX93032

(15) (14) (13)

(12-8)

(7-0)

CD ERR DR

00000

FSK DATA BYTE

RESP

C D = 0 : Carrier is not detected (FSK signal do not occur on line)

= 1 : Carrier is detected (FSK signal takes place on line)

ER R = 0 : Data buffer is not overflow

= 1 : Data buffer is overflow

DR = 0 : FSK data byte is not ready

= 1 : FSK data byte is ready

Note : The length for RAW Data buff er is 8 b ytes long.

Request Code = 000 (Demodulate FSK T o COOKED DATA)

(15-12)

(11-8) (8) (7-2)

(0)(1)

1111

000

1

000000

TYPE START\

CONF

TYPE = 0 : CID TYPE I 200 bits channel seizure & 10 bits mark signal

= 1 : CID TYPE II 10 bits mark signal

START\ = 0 : Start / Continue to Demodulate

= 1 : Stop Demodulating

(15) (14) (13)

(12-8)

(7-0)

CD ERR DR

00000

FSK DATA BYTE

RESP

C D = 0 : Carrier is not detected (FSK signal do not occur on line)

= 1 : Carrier is detected (FSK signal takes place on line)

ER R = 0 : Data buffer is not overflow

= 1 : Data buffer is overflow

DR = 0 : FSK data byte is not ready

= 1 : FSK data byte is ready

Note: 1) The second b yte data receiv ed by FSK decoder will be considered as the total data length.

2) The first b yte sent out are the total length +1 in which the chec ksum is included.

3) The length f or cook ed data buff er is 60 b ytes long.

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(15-12)

(11-9) (8-1)

(0)

1111

000

00000000

CAS

TYPE

CONF

Request Code = 100 (Set Response method of CAS detected)

CAS TYPE = 0 : Continuous Response. Response CAS behavior fidelity (Delay about 55ms)

= 1 : Response One Time. Response CAS detected after CAS is off

55 ms

15 ms

CAS SIGNAL :

Continuous Resp

Resp One Time

Request Code = 101 (Set CAS Sensitivity)

(15-0)

RESP

000000000000000

(15-12)

(11-9)

(8-3)

(2-0)

1111

101

000000

CAS_L VL

CONF

(15-0)

RESP

000000000000000

01234567

Sensitivity -32 -34 -3 6 -38 -40 -42 -44 -46

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Request Code = 001 or 010 (ACK DTMF A or A CK DTMF D)

(15-12)

(11-9)

(7-4)(8)

(3-0)

1111

ACK

TO

GAIN2

GAIN1

CONF

(15-0)

RESP

000000000000000

GAIN1, GAIN2 : 0~14 denote 3dB ~ -25dB (2dB/one step), 15 denotes no related signal.
T O = 0 OUTPUT CHANNEL CODEC 0.

= 1 OUTPUT CHANNEL CODEC 1.

ACK =001 ACK DTMF A.

=010 ACK DTMF D.

TABLE 1. PERFORMANCE TEST FOR TONE DETECTION

(noiseless) 0 -3 -6 -10 -20 -30 -33 -36 -39
Pow er (dB)
p2p (volt) 5 3.54 2.5 1.58 .5 .158 .112 .079 .056
280 Hz x x x x x x x x x
300 Hz ok ok o k ok ok ok ok x x
400 Hz ok ok ok ok ok ok ok ok x
500 Hz ok ok ok ok ok ok ok ok x
600 Hz ok ok ok ok ok ok ok ok x
640 Hz ok ok ok ok ok ok ok x x
670 Hz x x x x x x x x x
480+620 Hz ok ok ok ok ok ok x x x
350+440 Hz ok ok ok ok ok ok x x x

* 0 dB is defined as the Vrms of maximum codec input
** The maxim um peak-to-peak voltage (P2P) of Codec input is assumed to be 5V

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SNR (dB) 40 25 12

detect time delay / off time delay (ms)
300 Hz 50 / 40 55 / 40 65 / 40
400 Hz 40 / 40 40 / 40 45 / 45
500 Hz 40 / 40 40 / 40 45 / 45
640 Hz 45 / 40 45 / 40 60 / 35
480+620 Hz 40 / 40 45 / 40 50 / 40
350+440 Hz 45 / 40 45 / 40 55 / 40

* 0 dB is defined as the Vrms of maximum codec input
** the detect/off time delay is defined as follows

detect time delay

off time delay

INPUT

RESPONSE

TABLE 2. RESOLUTION TEST FOR DUAL TONE (FREQUENCY DETECTABLE RANGE)

RANGE / POWER -4 dB -25 dB
(300 + F2 Hz) F2 > 320 Hz F2 > 320 Hz
(640 + F2 Hz) F2 < 620 Hz F2 < 620 Hz

TABLE 3. THD DISTORTION TEST FOR DUAL TONE (DISTORTION TOLERANCE)

INPUT / POWER -4 dB -25 dB
(300 + 320 Hz) > 10 dB > 10 dB
(640 + 620 Hz) > 10 dB > 10 dB

* 0 dB is defined as the Vrms of maximum codec input

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TABLE 4. CALL PROGRESS TONE DETECTOR CHARACTERISTICS

P ARAMETER MIN TYP MAX UNIT

Detection level * -30 dB
Rejection level -3 7 dB
Frequency range 300 64 0 Hz

Noise tolerance -1 2 dB

THD tolerance -10 dB

Rejection frequency range < 280 Hz or > 670 Hz
Minimum signal duration accept 50 ms

Maximum response time 50 ms
* 0 dB is defined as the Vrms of maximum codec input

TABLE 5. DTMF CHARACTERISTICS

PARAMETER MIN TYP MAX UNIT
DTMF signal level for detection * -4 3 0 dB
DTMF twist (high/low tone) 9 dB
DTMF noise tolerance -10 d B
DTMF tone duration accept 50 ms
DTMF interdigit pause accept 50 ms
DTMF frequency deviation accept limit 1. 5 %
DTMF frequency deviation reject limit 3 %
T one generator le vel -2 5 +3 dB
T one generator frequency accur acy 0.1 %
T one generator le vel accuracy 0.5 dB

±

±

±

±
±

* 0 dB is defined as the Vrms of maximum codec input

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TABLE 6. VOX THRESHOLD

dB VOX_LEVEL

-9 0

-10 1

-11 2

-12 3

-13 4

-14 5

-15 6

-16 7

-17 8

-18 9

-19 10

-20 11

-21 12

-22 13

-23 14

-24 15

-25 16

-26 17

-27 18

-28 19

-29 20

-30 21

-31 22

-32 23

-33 24

-34 25

-35 26

-36 27

-37 28

-38 29

-39 30

-40 31

-41 32

-42 33

-43 34

-44 35

-45 36

-46 37

-47 38

-48 39

-49 40

-50 41

-51 42

-52 43

-53 44

-54 45

-55 46

-56 47

-57 48

-58 49

-59 50

-60 51

-61 52

-62 53

0 dB is defined as the Vrms of maximum Codec input.

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TABLE 7. SILENCE THRESHOLD LEVEL

SILENCE LEVEL dB
1 -58
2 -55
3 -52
4 -49
5 -46
6 -43
7 -40
8 -37
9 -34
10 -31
11 -28
12 -25
13 -22
14 -19
15 -16

0 dB : maximum input of sinusoidal wave

TABLE 8. ECHO CANCELLER PERFORMANCE *

T est Description
Final Echo Return Loss Improvement (ERLI) (Singletalk mode) > 28 dB
Maximum tail length 12 ms
Convergence Rate (Singletalk mode) > 28 dB
500 ms after initialization with cleared register and with near-end signal
set to zero at initialization time
Infinite Return Loss Convergence > 28 dB
Return Echo Loss Improvement 500 ms after echo path is interrupted

* test signal : band-limited white-noise (300-3400 Hz)

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TABLE 9. MAXIMUM COMMAND RESPONSE TIME

COMMAND MAX RESP TIME (ms)
Record Mode :

1. start 32

2. normal 6

3. stop 10 4
Play Mode :

1. start 14

2. normal 5

3. stop 1
Message Status Mode :

1. get message number 8

2. get FLASH available time 6

3. get FLASH garbage collection recommendation status 1
DTMF Generator Mode 1
Line Monitor Mode 6
Delete Message Mode :

1. delete one message 4300

2. delete all old messages 5800

3. real delete 5500
Set Current Time/V oice Prompt/Silence Threshold Mode 1
Get Current Time Mode 1
Initial and Test Memory Mode :

1. FLASH re-initialization 2400

2. FLASH initialization/error correction 5800

3. FLASH garbage collection 15 0

4. other misc. setting 1
Get Record Message Information Mode 10
V oice Prompt Mode :

1. start 6

2. normal 5

3. stop 1
Voice Activity Mode 1
Personal Mail Mode 1

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APPENDIX A : CID TEST REPORT BASED ON SR-3004

1 . T ype 1 T esting

1.1 Testing Items
A list of parameters to test based on SR-3004 are divided into two categories: Transmission tests and Message

Format tests. Transmission tests vary electrical properties of signals to identify when and where CPE fails to detect.
The Message Format tests vary the content and formatting of the data message. The following tests assumes that
T ransmission testing is independent of Message F ormat testing. The FSK mode provided on the MX93032-M1 is just
responsible to decode the physical layer and data link layer. Therefore, Only transmission test associated with the
MX93032-M1 will be given. For message format tests, it should be tested by "system manufacturers" depending on
the their interesting region.

1.2 T ransmission T esting

Mark Frequency
Space Frequency
Twist Immunity
Noise Immunity
Baud Rate

1.2.1 Immunity to Frequency and Baud Rate V ariation

Item T esting Range Desired Range
SP ACE 2100HZ ~ 2300HZ 2178HZ ~ 2222HZ
MARK 1100HZ ~ 1300HZ 1188HZ ~ 1212HZ
BAUD RATE 1150 baud ~ 1250 baud 1188 baud ~ 1212 baud

T esting Condition :
Signal amplitude at -20dBm for per frequency
SN R : 40 dB
Signal : For the signal which meets the following each conditions will be send 100 times, the times CPE receive
correctly will be recorded.

2100 2150 2178 2222 2250 2300
1100 95 100 100 100 100 100
1150 100 100 100 100 100 100
1188 100 100 100 100 100 100
1212 100 100 100 100 100 100
1250 100 100 100 100 100 100
1300 100 100 100 100 100 80

Baud Rate = 1188 baud

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2100 2150 2178 2222 2250 2300
1100 100 100 100 100 100 100
1150 100 100 100 100 100 100
1188 100 100 100 100 100 100
1212 100 100 100 100 100 100
1250 100 100 100 100 100 100
1300 100 100 100 100 100 100

Baud Rate = 1212 baud

1.2.2 T wist Immunity
Range +/- 10 dB

Fix Condition:
Space Frequency : 2200 HZ
Mark F requency : 1200 HZ
Baud Rate : 1200 Baud
SNR : 40 dB
Signal : For the signal which meets the following each conditions will be send 100 times, the times CPE
receive correctly will be recorded.

Positiv e Twist : (Mark > Space)
Mark is fixed to -13 dBm and Space vary from -13 dBm to -48 dBm with step 5 dB

-13 -18 -23 -28 -33 -38 -43 -48
100 100 100 0 0 0 0 0

Negative Twist : (Mark < Space)
Space is Fixed to -13 dBm and Mark vary from -13dBm to -48 dBm with step 5 dB

-13 -18 -23 -28 -33 -38 -43 -48
100 100 100 0 0 0 0 0

1.3.4 Noise Immunity:
Fix Condition:
Space Frequency : 2200 HZ
Mark Frequency : 1200 HZ
Baud Rate : 1200 Baud
Signal Level : -20 dBm
Signal : For the signal which meets the following each conditions will be send 100 times, the times CPE
receive correctly will be recorded.

10 12 14 15 18 20 22 24
0 0 0 100 100 100 100 100

26 28 30 32 34 36 38 40
100 100 100 100 100 100 100 100

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TYPE II TESTING
The Type 2 CPE requires all of the same conformance test as T ype 1 CPE in addition to "CAS detector perf ormance”

2.1 CAS Detector Perf ormance
There are three types of tests to perform for CAS detector performance:
Signal Recognition Tolerance ( without speech )

Talk off ( false detection due to speech )
Talk Down (missed detection due to interference from speech )

2.1.1 Signal Recognition Tolerance

Parameter Nominal Minimum Maximum
Lower Frequency 2130 +/- 2 Hz 2119 Hz 2141 Hz
Upper Frequency 2750 +/- 2 Hz 2736 Hz 2764 Hz
Pow er le v el -22 +/- 1 dBm -32 dBm -14 dBm
Twist 0 ~ 2 dB 0 dB 6 dB
Duration 80 +/- 1 ms 75 ms 85 ms

Various combinations of the abov e parameter v alues will be tested by sending 1000 CAS tones to the CPE at a rate
not exceeding 2 per second. The various parameter combinations are broken into three groups described as follow s.
Each test combination requires 34 minutes to complete with 1000 burst at a 2 second interval.

Group 1 consists of all the parameters at their nominal value.
Group 2 sets each parameter ( one at a time) to its extreme values, while the remaining parameters remain
at their nominal value.
Group 3 sets all parameters to 90% of its extreme value. All of the possible parameter combinations are
tested.

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Group 1 :

T est No Frequency ( Low , High) Power Le vel (Low , High) Duration Correct Times
1 (2130,2750) (-22,-22) 80 1000

T est No Frequency ( Low , High) Power Lev el (Low , High) Duration Correct Times
1 (2119,2750) (-22,-22) 80 1000
2 (2141,2750) (-22,-22) 80 1000
3 (2130,2736) (-22,-22) 80 1000
4 (2130,2764) (-22,-22) 80 1000
5 (2130,2750) (-14,-14) 80 1000
6 (2130,2750) (-32,-32) 80 1000
7 (2130,2750) (-14,-20) 80 1000
8 (2130,275) (-32,-26) 80 1000
9 (2130,2750) (-20,-14) 80 1000
10 (2130,2750) (-26,-32) 80 1000
11 (2130,2750) (-22,-22) 75 1000
12 (2130,2750) (-22,-22) 85 1000

Group 2 :

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T est No Frequency ( Low , High) Power Le vel (Low , High) Duration Correct Times
1 (2120,2737) (-31,-31) 76 1000
2 (2120,2737) (-31,-26) 76 1000
3 (2120,2737) (-26,-31) 76 1000
4 (2120,2737) (-15,-15) 76 1000
5 (2120,2737) (-15,-20) 76 1000
6 (2120,2737) (-20,-15) 76 1000
7 (2120,2737) (-31,-31) 84 1000
8 (2120,2737) (-31,-26) 84 1000
9 (2120,2737) (-26,-31) 84 1000
10 (2120,2737) (-15,-15) 84 1000
11 (2120,2737) (-15,-20) 84 1000
12 (2120,2737) (-20,-15) 84 1000
13 (2140,2737) (-31,-31) 76 1000
14 (2140,2737) (-31,-26) 76 1000
15 (2140,2737) (-26,-31) 76 1000
16 (2140,2737) (-15,-15) 76 1000
17 (2140,2737) (-15,-20) 76 1000
18 (2140,2737) (-20,-15) 76 1000
19 (2140,2737) (-31,-31) 84 1000
20 (2140,2737) (-31,-26) 84 1000
21 (2140,2737) (-26,-31) 84 1000
22 (2140,2737) (-15,-15) 84 1000
23 (2140,2737) (-15,-20) 84 1000
24 (2140,2737) (-20,-15) 84 1000
25 (2120,2763) (-31,-31) 76 1000
26 (2120,2763) (-31,-26) 76 1000
27 (2120,2763) (-26,-31) 76 1000
28 (2120,2763) (-15,-15) 76 1000
29 (2120,2763) (-15,-20) 76 1000
30 (2120,2763) (-20,-15) 76 1000
31 (2120,2763) (-31,-31) 84 1000
32 (2120,2763) (-31,-26) 84 1000
33 (2120,2763) (-26,-31) 84 1000
34 (2120,2763) (-15,-15) 84 1000
35 (2120,2763) (-15,-20) 84 1000
36 (2120,2763) (-20,-15) 84 1000
37 (2140,2763) (-31,-31) 76 1000
38 (2140,2763) (-31,-26) 76 1000
39 (2140,2763) (-26,-31) 76 1000
40 (2140,2763) (-15,-15) 76 1000
41 (2140,2763) (-15,-20) 76 1000
42 (2140,2763) (-20,-15) 76 1000
43 (2140,2763) (-31,-31) 84 1000
44 (2140,2763) (-31,-26) 84 1000
45 (2140,2763) (-26,-31) 84 1000
46 (2140,2763) (-15,-15) 84 1000
47 (2140,2763) (-15,-20) 84 1000
48 (2140,2763) (-20,-15) 84 1000

Group 3 :

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T est No Frequency ( Low , High) Power Le vel (Low , High) Duration Correct Times
1 (2120,2750) (-46,-46) 80 0

CAS Level Reject Limit

2.1.1.2 Talk-down Test

Row Signal Level Speech Level SNR CAS Pulses CAS Pulses Derated Miss

(dBm/Tone) (dBm) Received Sent Rate (%)
1 -28 -10 -18 3608 6000 19.933
2 -28 -13 -15 4586 6000 11.7833
3 -22 -10 -12 909 1125 9.6
4 -26 -16 -10 1073 1125 2.311
5 -28 -22 -6 1112 1125 0.5778
6 -22 -19 -3 1124 1125 0.0444

CAS LEVEL

Speech -30 dBm -28 dBm -26 dBm -24 dBm -22 dBm -20 dBm -18 dBm -16 dBm

-7 dBm 33.5166^ 28.0833^ 22.6500^ 17.2166~ 11.7833 10.3278~ 5.9556~ 1.8778~

-10 dBm 25.3666^ 19.933 14.5000~ 11.0555~ 9.60 2.3111 1.4445~ 0.5778

-13 dBm 17.2166~ 11.7833 10.3278~ 5.9556~ 1.8778~ 1.0111~ 0.4000~ 0.0444

-16 dBm 11.0555~ 9.6 2.3111 1.4445~ 0.5778 0.2222~ 0* 0*

-19 dBm 5.9556~ 1.8778~ 1.0111~ 0.4~ 0.0444 0* 0* 0 *

-22 dBm 1.4445~ 0.5788 0.2222~ 0* 0* 0* 0* 0*

-25 dBm 0.4~ 0.0444 0* 0* 0* 0* 0* 0*

-28 dBm 0* 0 * 0* 0* 0* 0* 0* 0*

-31 dBm 0* 0 * 0* 0* 0 0* 0* 0*

in which the symbols "~" , "^" and "*" represent interpolated, extrapolated and clamped to minimum or maximum,
respectively.

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-30 -28 -26 -24 -22 -20 -18 -16 Sum

-7 0.000129 0.000172 0.000344 0.000731 0.000731 0.000731 0.000731 0.000731 0.0043

-10 0.000774 0.001032 0.002064 0.004386 0.004386 0.004386 0.004386 0.004386 0.0258

-13 0.002973 0.003964 0.007928 0.016847 0.016847 0.016847 0.016847 0.016847 0.0991

-16 0.006684 0.008912 0.017824 0.037876 0.037876 0.037876 0.037876 0.037876 0.2228

-19 0.0088 0.01184 0.02368 0.05032 0.05032 0.05032 0.05032 0.05032 0.296

-22 0.006684 0.008912 0.017824 0.037876 0.037876 0.037876 0.037876 0.037876 0.2228

-25 0.002973 0.003964 0.007928 0.016847 0.016847 0.016847 0.016847 0.016847 0.0991

-28 0.000774 0.001032 0.002064 0.004388 0.004386 0.004386 0.004386 0.004386 0.0258

-31 0.000129 0.000172 0.000344 0.000731 0.000731 0.000731 0.000731 0.000731 0.0043
Sum 0.03 0.04 0.08 0.17 0.17 0.17 0.17 0.17 1

Weighted average detection rate for all 72 level combinations given above

T alkdo wn Condition 1 -- the combination of average signal le vel (-22 dBm /tone) and av erage speech level (-19 dBm).
At least 99.5% of the signals sent should be received correctly using derated missed rate.
T alkdown Condition 2 -- the w eight average of the worst one percent of the 72 combinations . At least 93% of the signal
sent should be received correctly using the derated missed rate.
Talkdown Condition 3 -- the weighted average of all of the 72 combinations . At least 99.5% of the signal should be
received correctly using derated missed rate.\

Statistical T alkdown Result:

Condition 1 (nominal) : 99.956 % ( Spec. >= 99.5% )
Condition 2 (worst 1 %) : 83.784 % ( Spec. >= 93 % )
Condition 3 (global) : 99.005 % ( Spec. >= 99.5%)

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Ro w Near End Hits No on Near Testing Time Far End Speech Hits No on Far Testing Time

Speech Level End Speech Level (dBm) End Speech

(dBm)
1 -10 8 96
2 -16 5 96 -16 5 96
3 -22 3 96 -22 3 96

2.1.1.3 Talk-off Test

Talkoff Test Raw Data:

F AR END SPEECH

-13 dBm^ -16 dBm -19 dBm~ -22 dBm -25 dBm^ -28 dBm^ -31 dBm^

-7 dBm^ 0.0729 0.0677 0.0625 0.0573 0.0521 0.0469 0.0417

-10 dBm 0.0729 0.0677 0.0625 0.0573 0.0521 0.0469 0.0417

-13 dBm~ 0.0651 0.0599 0.0547 0.0495 0.0443 0.0391 0.0339

-16 dBm 0.0573 0.0521 0.0469 0.0417 0.0365 0.0313 0.0260

-19 dBm~ 0.0521 0.0469 0.0417 0.0365 0.0313 0.0260 0.0208

-22 dBm 0.0469 0.0417 0.0365 0.0313 0.0260 0.0208 0.0156

-25 dBm^ 0.0417 0.0365 0.0313 0.0260 0.0208 0.0156 0.0104

-28 dBm^ 0.0365 0.0313 0.0260 0.0208 0.0156 0.0104 0.0052

-31 dBm^ 0.0313 0.0260 0.0208 0.0156 0.0104 0.0052 0

N
E
A
R

E
N
D

S
P
E
E
C
H

~ interpolated ^ extrapolated

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-13 -16 -19 -22 -25 -28 -31 Sum

-7 3.07E-5 9.013E-5 0.0002528 0.0005126 0.0008063 0.000915 0.0016925 0.0043

-10 0.0001842 0.0005408 0.001517 0.0030754 0.0048375 0.0054902 0.0101549 0.0258

-13 0.0007076 0.0020771 0.0058271 0.0118127 0.0185813 0.0210885 0.0390058 0.0991

-16 0.0015908 0.0046699 0.0131006 0.0265578 0.041775 0.0474118 0.0876941 0.2228

-19 0.0021134 0.0062042 0.0174048 0.0352832 0.0555 0.0629888 0.1165056 0.296

-22 0.0015908 0.0046699 0.0131006 0.0265578 0.041775 0.0474118 0.0876941 0.2228

-25 0.0007076 0.0020771 0.0058271 0.0118127 0.0185813 0.0210885 0.0390058 0.0991

-28 0.0001842 0.0005408 0.001517 0.0030754 0.0048375 0.0054902 0.0101549 0.0258

-31 3.07E-5 9.013E-5 0.0002528 0.0005126 0.0008063 0.000915 0.0016925 0.0043
Sum 0.00714 0.02096 0.0588 0.1192 0.1875 0.2128 0.3935 1

Weighted average of all 63 combinations

Talkoff Condition 1 : the combination of a ver age near-end le v el (-19 dBm) and the av er age f ar end le v el (-28 dBm).
This talkoff rate should be less than 1 in 45 hours
T alkoff Condition 2 : the weighted a verage of the worst one percent of the 63 combinations . The talkoff rate should be
less than 1 in 10 hours.
Talkoff Condition 3 : the weighted a ver age of all of the 63 combinations. The talk off rate should be less than 1 in 35
hours.

Tested Result :

Condition 1 (nominal ) : 1 hit per 38.4 hours ( Spec. >= 45 hours)
Condition 2 (worst 1 %) : 1 hit per 16.79 hours ( Spec. >= 10 hours)
Condition 3 (global) : 1 hit per 35.73 hours ( Spec. >= 35 hours)

3. Recommendation:

All of the test results corresponding to talkdown given above are obtained by configuring our demo board to "Adjunct
Model". That is, our demo board w as connected directly to the Tip and Ring on which the far end speech and f ar end
CAS has been mixed. Therefore, there is no way to tell speech signal from the CAS on that testing configuration
adopted by us. For practical application, Near end speech instead of far end speech should occur on talkdown test. If
the mixed signal captured from tip and ring can be subtracted from the source signal captured from the near end
speech with proper gain. Then the SNR of resultant signal will be highly improv ed on adjusting the impedance match
between CPE and SPCS adequately . According to our experience, if the quantity of the echo canceller can e xcess 6
dB, the performance of CAS detector embedded on 93032-M1 will meet the Bellcore specification for talkdo wn. The
feature of echo canceller will be inherently possessed by phone mode, there will be additional circuit to implement
echo canceller for adjunct model.

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APPENDIX B : OPERATION GUIDE FOR THE 93032-M1 DEMO BOARD

1. INTRODUCTION:
The evaluation board (EVB) is provided by Macronix is to demonstrate both Digital speakerphone, Caller
ID and DAM functions. There are four parts in EVB:

1. Main Module with label "A001-BD-0038A"

2. DSP Module with label "A001-BD-0031B"

3. DAA Module with label "MSP-PCB-010A"

4. MCU Module with label "A001-BD-0040A"

The key pad is arranged into six kinds of definitions:

1. DAM mode k eys: The power on def ault ke y function to demo D AM record/pla y/etc functions.

2. Speakerphone mode keys: Press "spk phone on" in DAM mode to enter speakerphone mode.

User can dial DTMF, set loudspeaker / lineout volume or mute line-out signal.

3. Speaker test mode keys : Press "test mode" key in speakerphone mode for 1 second to enter

this mode which allows user to set all the speakerphone BIOS parameters through key pad.

4. CPE Alerting Signal (CAS) test : Press "CAS T est" and last f or 1 second in DAM mode to enter

CAS test mode. During this mode , the number of CAS signal receiv ed from Tip and Ring will be
counted and represented on LCD display .

5. Caller ID TypeII Test mode: Press "CAS T est" within 1 second in D AM mode to come into Caller

ID Type II Test mode. After coming into this mode, 93032-M1 will monitor line and detect the
CAS signal presented on line. The DTMF will be sent out as the CAS was found, following the
FSK will be decoded and showed on LCD .

6. Encoding mode selection : Press "Enc. Select" in DAM mode to switch the encoding mode

either 4.8 k or 12.8 k.

7. Flash Re-initialization : Press "Flash Re-Init." in D AM mode to perf orm FLAH Re-Initialization

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REV. 1.0.3, DEC. 13, 1999

MX93032

2. MA TRIX KEY DEFINITION:

Key P ad under D AM mode (Po wer on default mode)

ANN1 ON/OFF

PLA YANN2

ANN3

CODE/FF

TIME/
STOP

MEMO/
REV

SPK.Phone
ON/OFF

Enc.
Select

CAS
T esT

Flash
Re-lnit.

DEL

12 3A

45 6B

78 9C

0F ED

Key P ad in Speak er Phone mode :

12

54

7

Lout V ol
+

0

Lout V ol

-

SPK.Phone
OFF

Mute Lout/
Test Mode

Spk V ol
+

Spk V ol

-

8

12

3
3

A

45 66B

78 99C

0F ED

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REV. 1.0.3, DEC. 13, 1999

MX93032

Ke y Pad in Speak er Phone Test mode :

Ke y P ad in CALLER ID Test mode :

Current
Loop Att

Set
Pre_PGA

Set
AD1_PGA

Set
LINE_DRV

Set
SPK_DRV

Set
AD2_PGA

Set
ATT1

Set
AEC_ERL

Exit
Test Mode

Target
Loop Att +

Target
Loop Att -

Set T/R
Ratio

Set R/T
Ratio

Set
LEC_ERL

12

3

A

45 6B

78 9C

0F ED

Forward Caller
ID Data

STOP

Backward
Caller ID Data

CALLER TYPE
II/CAS TEST

R/C

DUMP CID

12

3

A

45 6B

78 9C

0F ED

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REV. 1.0.3, DEC. 13, 1999

MX93032

Key Pad Definitions under D AM/Caller ID mode:

NO FUNCTION PRESS METHOD
1 OGM1 PLAY Press within 2 sec

OGM1 RECORD AND PLA Y Press over 2 sec
2 Turn on DAM Press
3 Raw/Cook Data Select Press within 2 sec

Dump Caller ID Data Press over 2 sec
4 OGM2 PLAY Press within 2 sec

OGM2 RECORD AND PLA Y Press over 2 sec
5 PLAY ALL MESSAGE Press within 2 sec

PLAY NEW MESSAGE Press over 2 sec
6
7
8 Delete Current Message played Press
9
0 Sho w And Announce Pass word Press within 2 sec

Set Password Press over 2 sec

Forward (for playing message and setting password) Press
A Flash Re-initialization Press
B CAS T est Press
C Enc. Selection Press
E Record Memo Press over 2 sec

Rewind (for playing message and setting password) Press
F Announce Time Stamp Press

Stop Press

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REV. 1.0.3, DEC. 13, 1999

MX93032

Key Pad Definitions under Speaker Phone Mode :

NO FUNCTION PRESS METHOD
1 GENERATE DTMF "1" Press
2 GENERATE DTMF "2" Press
3 GENERATE DTMF "3" Press
4 GENERATE DTMF "4" Press
5 GENERATE DTMF "5" Press
6 GENERATE DTMF "6" Press
7 GENERATE DTMF "7" Press
8 GENERATE DTMF "8" Press
9 GENERATE DTMF "9" Press
0 Increase Line Out V olume Press
A Increase Speaker V olume Press
B Decrease Speaker V olume Press
C Mute Line Out Press within 2 sec

Enter Test Mode Press over 2 sec
D T urn Off Speaker Phone Press
E Decrease Line Out Volume Press
F GENERA TE DTMF "0" Press

Key Pad Definitions under Speaker Phone Mode (T est Mode) :

NO FUNCTION PRESS METHOD
1 Show Current Loop Attenuation Press
2 SET LINE_DR V (MX93002 CODEC) Press
3 SET T/R RA TIO Press
4
5 SET AD2_PGA (MX93002 CODEC) Press
6 SET R/T RATIO Press
7 SET PRG_PGA (MX93002 CODEC) Press
8 SET_A TT1(MX93002 CODEC) Press
9 SEL LEC_ERL Press
0 SET AD1_PGA Press
A TARGET LOOP ATTENUA TION UP Press
B T ARGET LOOP ATTENUA TION DOWN Press
C EXIT TEST MODE Press
D
E SET AEC_ERL Press
F SET SPK_DRV(MX93002 CODEC) Press

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REV. 1.0.3, DEC. 13, 1999

MX93032

ERL_AEC & ERL_LEC : Range from 0 to 30 with 2 dB/step

Speaker Phone related BIOS parameters

0000 00001 0010 0011 0100 0101 0110 0111
0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB

1000 1001 1010 1011 1100 1101 1110 1111
16 dB 18 dB 20 dB 22 dB 24 dB 26 dB 28 dB 30 dB

Note: The def ault value of ERL_LEC and ERL_AEC are 0 dB.

T/R & R/T Ratio

000 001 010 011 100 101 110 111
3 dB 6 dB 9 dB 12 dB 15 dB Reserved Reserved Reserved

Note : 12 dB is default value

SPK_GAIN & LINE_GAIN : Range from -20 to 20

0000 00001 0010 0011 0100 0101 0110 0111

-20dB -16 dB -12 dB -8 dB -4 dB 0 dB 2 dB 4 dB

1000 1001 1010 1011 1100 1101 1110 1111
6 dB 8 dB 10 dB 12 dB 14 dB 16 dB 18 dB 20 dB

Loop Attenuation (CONF) : Range from 0 to 28 with 4dB/Step

000 001 010 011 100 101 110 111

0.dB 4 dB 8 dB 12 dB 16 dB 20 dB 24 dB 28 dB

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MACRONIX INTERNATIONAL CO., LTD. reserves the rignt to change product and specifications without notice.

MX93032