Datasheet MX93521 Datasheet (MXIC)

1. FEATURES

MX93521

ALL DIGITAL VOICE RECORDER MACHINE

BASED ON THE MX93521 VOCODER CHIP

• Excellent sound quality by adopting 4800bps CELP
speech compression alogorithm.

• Silent Compression algorithm to further compress si
lence between speech.

• Flash Memory Management alogorithm to manage
down-graded Flash Memory to store compressed
speech data. With silent compression, one 4Mbit flash
memory could store up to 18 minutes speech.

• Support 4/8/16/32 Mbit Samsung Flash Memory or its
compatible parts

• Support both parallel and serial microprocessor inter
face.

• Codec Interface circuit (support both TP3054 and
MX93000)

• Host controllable LCD Module Interface

• Host writable message header (4 bytes) for identifica

-tion or index purpose

• Powerful Editing Function

• Varieties of operating function including Rewind, Fast
Forward, Repeat and message editing etc.

• Voice activated recording

• Use Flash memory to store user data (data bank)

• Upload/Download speech message data from/to
HOST

• VOCODER mode (VOice COmpressor/
DEcompressoR)

• Direct CODEC Play Mode (Play PCM/u-Law data re
ceived from HOST)

• Play Voice Prompt from ROM/FLASH memory

• DTMF tone genarator

2.GENERAL DESCRIPTION

This document describes how to implement an all-digital voice recorder using the MX93521 chip. The MX93521 is a
Digital Recorder Data Pump which is controlled by an external microprocessor to perform various recorder function.

The MX93521 is fully controlled by a HOST controller through a simple HOST interface protocol. The HOST could
initiate many digital recording functions such as record, play, repeat, search, skip, insertion, message managing
and self-diagnosis. Also, HOST could set MX93521 in VOCODER mode and use MX93521 as a speech compres­sion/decompression data pump. The functions supported by MX93521 are listed as followed.

MODE FUNCTION PATH
RECORD CODEC-->(COMPRESS)-->FLASH
PLAY CODEC-->(DECOMPRESS)<--FLASH
RECORD (VOCODER) CODEC-->(COMPRESS)-->HOST
PLA Y (V OCODER) CODEC-->(DECOMPRESS)<--HOST
DIRECT CODEC PLA Y MODE CODEC-->(PCM/u-Law)<--HOST
DOWNLOAD MESSAGE FLASH(MSG)-->HOST
UPLOAD MESSAGE FLASH(MSG)<--HOST
DATABANK ACCESS FLASH(DATA)<-- -->HOST

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1

3.PIN CONFIGURATIONS

3.1 Pinout Assignments for MX93521 100-Pin PQFP (Parallel Mode)

100-LQFP PIN ASSIGNMENT¡G

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDSP

ED0

HOLD\

HOLDA\

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

EAD2

75747372717069686766656463626160595857565554535251

ED9
ED10
ED11
ED12
ED13

VDSP

GND
ED14
ED15

XTLI

XTLO

NC
NC
NC
NC

MIC-E\

SPK-E\

RST\

EROM
SDEN\
SDATA

WP\

RxCmd

NC
NC

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

MX93521

EAD3

EAD4

EAD5

EAD6

FLL\

MX93521

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26

EAD7
NC
EAD8
EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDSP
EAD15
VDSP
SCLK
VDSP
DSPDR
DA\
CMCLK
CFS
DSPDX
SOUT
PHDB0
PHDB1
PHDB2
PHDB3

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NC

LED2\

LED1\

CE1\

CE2\

NC

ALE

CLE

X32I

X32O

P A CKB\

S/P

SIN

CODEC TYPE

R/B

MTYPE0

SHOLD\

MTYPE2

MTYPE1

GND

VDSP

PHDB7

PHDB6

PHDB5

2

PHDB4

REV. 2.2, JAN 20, 1998

100-PQFP PIN ASSIGNMENT¡G

ED10

ED9

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDSP

ED0

HOLD\

HOLDA\

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

EAD2

EAD3

EAD4

EAD5

EAD6

FLL\

GND

EAD7

EAD8

MX93521

ED11
ED12
ED13

VDSP

GND
ED14
ED15

XTLI

XTLO

NC
NC
NC
NC

MIC-E\

SPK-E\

RST\

EROM
SDEN\
SDATA

WP\

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81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

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NC

NC

NC

CE1\

CE2\

LED2\

LED1\

RxCmd

NC

ALE

CLE

MX93521

S/P

X32I

X32O

P A CKB\

SIN

R/B

MTYPE0

CODECTYPE

SHOLD\

MTYPE2

MTYPE1

GND

VDSP

PHDB7

PHDB6

PHDB5

PHDB4

51

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31

30

PHDB3

PHDB2

EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDSP
EAD15
VDSP
SCLK
VDSP
DSPDR
PHRDB\
CMCLK
CFS
DSPDX
PHWRB\
PHDB0
PHDB1

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3.2 Pinout Assignments for MX93521 100-Pin TQFP (Serial Mode)

100-LQFP PIN ASSIGNMENT¡G

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDSP

ED0

HOLD\

HOLDA\

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

75747372717069686766656463626160595857565554535251

ED9
ED10
ED11
ED12
ED13

VDSP

GND
ED14
ED15

XTLI

XTLO

NC
NC
NC
NC

MIC-E\

SPK-E\

RST\

EROM
SDEN\
SDATA

WP\

RxCmd

NC
NC

76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

MX93521

EAD2

EAD3

EAD4

EAD5

EAD6

FLL\

MX93521

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26

EAD7
NC
EAD8
EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDSP
EAD15
VDSP
SCLK
VDSP
DSPDR
DA\
CMCLK
CFS
DSPDX
SOUT
BIO0
BIO1
BIO2
BIO3

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NC

LED2\

LED1\

CE1\

CE2\

NC

ALE

CLE

X32I

X32O

P A CKB\

S/P

SIN

CODEC TYPE

R/B

MTYPE0

SHOLD\

MTYPE2

MTYPE1

GND

VDSP

BIO7

BIO6

BIO5

BIO4

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100-PQFP PIN ASSIGNMENT¡G

ED10

ED9

ED8

ED7

ED6

ED5

ED4

ED3

ED2

ED1

GND

VDSP

ED0

HOLD\

HOLDA\

EDCE\

EPCE\

ERD\

EWR\

EAD0

EAD1

EAD2

EAD3

EAD4

EAD5

EAD6

FLL\

GND

EAD7

EAD8

MX93521

ED11
ED12
ED13

VDSP

GND
ED14
ED15

XTLI

XTLO

NC
NC
NC
NC

MIC-E\

SPK-E\

RST\

EROM
SDEN\
SDATA

WP\

8079787776757473727170696867666564636261605958575655545352

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

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NC

NC

NC

CE1\

CE2\

LED2\

LED1\

RxCmd

NC

ALE

CLE

MX93521

S/P

X32I

X32O

P A CKB\

SIN

R/B

MTYPE0

CODECTYPE

SHOLD\

MTYPE2

MTYPE1

GND

VDSP

BIO7

BIO6

BIO5

BIO4

BIO3

51

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31

30

BIO2

EAD9
EAD10
EAD11
EAD12
EAD13
EAD14
GND
VDSP
EAD15
VDSP
SCLK
VDSP
DSPDR
PHRDB\
CMCLK
CFS
DSPDX
PHWRB\
BIO0
BIO1

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MX93521

4.PIN DESCRIPTION

4.1 DSP BASIC (22 PINS )
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

VDSP 23,43,69,84,41,39 20,40,66,81,38,36 5V power source
GN D 24,44,53,70,85 21,41,67,82 Ground
FLL\ I 54 51 FLL\ low to set MX93521 running from single

low crystal
XTLI 8 8 8 5 32.256Mhz Crystal input
XTLO 89 8 6 32.256Mhz Crystal output
RST\ I 96 9 3 Po wer on Reset, Schmite triggered
PACKB\ OA 1 4 1 1 In serial mode, PACKB\ is N.C.

In parallel mode, PACKB\ becomes low when

MX93521 write data to BIO and high when

HOST read from BIO.
HOLD\ I 67 64 Hold DSP clock down and release bus
HOLDA\ OA 66 63 Ack to HOLD\ signal
EROM I 97 94 Disable internal ROM, use external ROM only
SCLK I 40 37 T ransmit/receive data clock
X32O OA 13 10 32.768Khz Crystal output
X32I 12 9 32.768Khz Crystal input

4.2 DSP EXTERNAL MEMORY(40 pins)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

EAD0-EAD15 OB 61~55,52~45,42 58~52,50,48~42,39 Address Bus
ED0~ED15 I/OB 68,71~83,86~87 65,68~80,83~84 Data Bus
EDCE\ OB 6 5 62 External data chip enable
EPCE\ OB 6 4 61 Resered for future use
ERD\ OB 6 3 60 Flash external read
EWR\ OB 6 2 59 Flash external write
NC 90~93 87~90 No connection

4.3 uP INTERF ACE(10 pins)

4.3.1 Serial Interface:(UPMODX=1)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

DA \ O C 37 3 4 Data Availab le (Output port OPT17)
SOUT O C 33 30 Serial Data Out (Output port OPT16)
BIO(7..0) OB 25~32 22~29 Drive LCD Display

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MX93521

4.3.2 Parallel Interface:(UPMODX=0)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

PHRDB\ I 3 7 34 Host read
PHWRB\ I 33 30 Host write
PHDB(7:0) B 25~32 22~29 Host data b us

4.4 CODEC (4 pins)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

CFS OB 35 3 2 Codec frame sync, 8Khz
CMCLK OB 36 33 Codec master clock, 1.536Mhz
DSPDX OA 34 31 Codec data transmit
DSPDR I 38 35 Codec data receive

4.5 OPT:OUT POR T(16 pins)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

CL E OC 1 1 8 Flash memory command latch enable
ALE OC 1 0 7 Flash memory address latch enable
N.C. 6,9 3,6
CE2\ OC 8 5 Chip enable 2
CE1\ OC 7 4 Chip enable 1
LED1\ OC 5 2 LED1 enable
LED2\ OC 4 1 LED2 enable

DR-V5

N.C.
RxCmd

DR-V5

OC 1 98 Received Command (toggle when re

WP\ OC 10 0 97 Flash memory write protection
SD ATA OC 99 96 Serial data transfer (for MX93000)
SDEN\ O C 98 95 Serial data enable (for MX93000)
SPK-E O C 95 92 Speaker enable,Hi-active
MIC-E\ OC 94 91 Microphone enable

2,3

ceived command from HOST)

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MX93521

4.6 IPT:INPUT POR T(8 pins)
SYMBOL TYPE PIN # (PQFP) PIN # (LQFP) DESCRIPTION

MTYPE1 I 2 2 19 Memory type select 1
MTYPE2 I 2 1 18 Memory type select 2
SHOLD\ I 2 0 17 Power down detect
MTYPE0 I 1 9 16 Memory type select 0
R/B I 1 8 1 5 Flash memory Ready/Busy
CODECTYPE I 1 7 14 Codec select (TP3054B or MX93000)
SIN I 1 6 1 3 Serial data input
S/P\ I 15 1 2 Serial/paralled interface

NOTE:O A:2mA,OB:4mA,OC:16mA output current

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5. HOST CONTROLLER INTERFACE

5.1 HOST CONTROLLER INTERFACE

5.1.1 Configuration

MX93521

HOST

HOST

OUT1

OUT2

IN1

IN2

OUT3

IN3

OUT1

OUT2

IN1

OUT3

D0-7

IN2

40

16

37

33

96

1

SERIAL MODE

33

37

14

16

96

32-25

1

40

SCLK

SIN

DA\

SOUT
RST\
RxCmd

SCLK
PHWRB\
PHRDB\
PACKB\
SIN
RST\
PHDB0-7
RxCmd

MX93521

PHILO\

MX93521

S/P\

S/P\

15

VCC

39

VCC

15

Gnd

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9

MX93521

5.1.2 Timing Diagrams

HOST Write Timing (Parallel Mode)

PHDB0-7

ts

PHWRB\

SCLK

(INT1\)

RxCmd

HOST Write Timing (Parallel Mode)

tp

HOST should cycle PHWRB\ after writing data to PHDB0-7.
MX93521 will read data from PHDB0-7 on the falling edge of SCLK (rising edge of PHWRB\).
Rxcmd will be toggled if command byte has been processed by MX93521

th

tp

The PHWRB\ signal will cause MX93521 to latch data from bus PHDB0-7 to MX93521 internal register. The invertted
signal of PHWRB\ will trigger MX93521 INT1\ to read and process the received data byte from internal register. Due
to the interrupt contention, there might be an up to 50 us delay between the rising edge of PHWRB\ and INT1\
actually being served. To keep from command overrun, HOST should check if RxCmd toggled or w ait 50 usec before
sending next command byte to MX93521.

HOST Read Timing (Parallel Mode)

PHDB0-7

ts

PACKB\

ta

PHRDB\

HOST Read Timing (Parallel Mode)

When MX93521 write data to PHDB0-7, P ACKB\ will become lo w. HOST needs to poll the status of PACKB\ continu­ously. When HOST detect low state on PACKB\, HOST should read out data from PHDB0-7. After HOST read the
data from PHDB0-7, PACKB\ will be reset to high.
The maxima delay between MX93521 write data to PHDB0-7 and PACKB\ become low is 10 ns.
The maxima delay between rising edge of PHRDB\ and PACKB\ become high is also 10 ns.

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HOST Write Timing (Serial Mode)

HOST output data SIN

HOST output clock SCLK

MX93521

ts

tp

tp

tp

RxCmd

DSP Sampling from SIN

HOST send data 61H tp DSP

start d01d10d20d30d4

0

61H

d5

d61d70stop

1

HOST Write Timing (Serial Mode)

RxCmd become low when start bit is received from HOST and toggle state when MX93521 received each follo wing
data bit or stop bit from HOST . Thus, instead of waiting f or a fixed period of time (50us) to send a command bit, HOST
could send the following command bit as soon as RxCmd toggled from pre vious state. The dela y between the falling
edge of SCLK and the RxCmd togglling time is range from 1 us to 50 us

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HOST Read Timing (Serial Mode)

DSP inform HOST

Data Available

DA\

>50us, clock rate

HOST output clock

SCLK

5-40us, SOUT response time

DSP output data

SOUT

HOST Sampling from

SOUT

DSP send data 49H

startx

to HOST

d0

d1

1

d2

0

d3

0

1

49H

HOST Read Timing (Serial Mode)

d4

MX93521

d5

0

0

d61d70stop

SOUT response time is 5-40us from the falling edge of SCLK
It is recommended that HOST sample SOUT right before the falling edge of SCLK

uP Interface Timing:

Min Max
Data setup time (ts) 10ns
Data hold time (th) 2ns
Data process time (tp) 1us 50us
PACKB\ acknowledge time (ta) 5ns

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MX93521

5.2 MX93521 IO INTERF ACE

5.2.1 Output Port
PIN Power do wn state

LED1\ O 5 LED1 CONTROL High
LED2\ O 4 LED2 CONTROL High
UO0* O 3 User Programmable Output Port High
UO1* O 2 User Programmable Output Port High
UO2* O 1 User Programmable Output Port High

* User Programmable Output P ort are only availab le in DR-V3 and DR-V4 v ersion

5.2.2 Flash Memory Interface

MX93521 PIN Flash Power down state

MTYPE1 I 2 2 GN D 0: SAMSUNG
MTYPE2 I 2 1 GN D 0: SAMSUNG
MTYPE0 I 19 Vcc (1:KM29N16000, 0:KM29N040)
CLE O 1 1 CLE Low
ALE O 10 ALE Lo w
ERD\ O 63 RD\
CE2\ O 8 CE2\ High
CE1\ O 7 CE1\ High
EWR\ O 62 WR\
R\B I 18 R/B\
WP\ O 100 WP\ Low
ED0 IO 68 IO0
ED1 IO 71 IO1
ED2 IO 72 IO2
ED3 IO 73 IO3
ED4 IO 74 IO4
ED5 IO 75 IO5
ED6 IO 76 IO6
ED7 IO 77 IO7

5.2.3 CODEC Interface

MX93521 PIN Power down state

CODECTYPE I 1 7 (1: MX93000, 0:TP3054)
DSPDR O 38
DSPDX O 34
CFS O 35
CMCLK O 36
SDA T A O 99 High
SDEN\ O 98 High
SPK_E O 9 5 Lo w
MIC_E\ O 94 High

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MX93521

5.2.4 uP Serial Mode Interface

MX93521 uP LCD

RxCmd O IN3 (optional) MX93521 Rxd Command Indicator
S/P\ I Vcc High, Serial Mode
SCLK I OUT1 Serial Clock
DA \ O IN1 Data Available
SOUT O IN2 Serial Data Output
SHOLD\ I OUT3 DSP HOLD
SIN I OUT2 Serial Data Input
RST\ I OUT4 DSP RESET
BIO2 O E
BIO3 O RS
BIO4 O D4
BIO5 O D5
BIO6 O D6
BIO7 O D7

5.2.5 uP Parallel Mode Interface

MX93521 uP LCD

S/P\ I GN D Lo w , P ar allel Mode
SCLK I OUT1\
PHRDB\ I OUT2 Read
PHWRB\ I OUT1 Write
SHOLD\ I OUT3 DSP HOLD
RST\ I OUT4 DSP RESET
PHILO\ I Vcc High, Byte Mode
SIN I IN 1 SIN should be connected to PACKB\ externally
PACKB\ O IN1 Acknowledge
RxCmd O IN2 (optional) MX93521 Rxd Command Indicator
PHDB0 I/O D0
PHDB1 I/O D1
PHDB2 I/O D2
PHDB3 I/O D3
PHDB4 I/O D4
PHDB5 I/O D5
PHDB6 I/O D6
PHDB7 I/O D7

When SHOLD\ is low , MX93521 will go to pow er down mode.
When SHOLD\ change from low to high, DSP will power up and send A CK0 to HOST

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MX93521

6. HOST INTERFACE SOFTWARE COMMAND SET SUMMARY

6.1 HOST TO MX93521 COMMANDS

When MX9521 received a command from HOST, it will always respond the command with a ac knowledge . The
valid commands and corresponded ackno wledge are described as below.

D7 D6 D5 D4 D3 D2 D1 D0
0 0 0 0 1 B B B 008H POINT T O SPECIFIC MESSA GE
0 0 0 1 0 B B B 010H GET CURRENT MESSAGE INFOMATION
0 0 0 1 1 B B B 018H DELETE MESSAGE(S)
0 0 1 0 0 B B B 020H REC/PLAY MISC. FUNCTION
0 0 1 0 1 B B B 028H RECORD MESSAGE
0 0 1 1 0 B B B 030H PLAY MESSAGE
0 0 1 1 1 B B B 038H SKIP FORW ARD/BA CKWARD PLAY
0 1 0 0 0 B B B 040H MISC. FUNCTION
0 1 0 0 1 B B B 048H TONE GENERATOR
0 1 0 1 1 B B B 058H MX93000 CODEC MISC. FUNCTION
0 1 1 0 0 B B B 060H LED DISPLAY
0 1 1 0 1 B B B 068H WRITE COMPRESSED VOICE D A TA TO MX93521
0 1 1 1 0 B B B 070H LCD COMMAND
0 1 1 1 1 B B B 078H LCD D A T A
1 0 0 0 0 B B B 080H OUTPUT COUNTER
1 0 0 0 1 B B B 088H Download/Upload Message
1 0 0 1 0 B B B 090H Set Silence level

DR-V4

1 0 0 1 1 B B B 098H Set ROM/RAM wait state
1 0 1 0 0 B B B 0A0H Read/Write RAM
1 0 1 0 1 B B B 0A8H Read ROM

DR-V4

DR-V5

1 0 1 1 x B B B 0BxH Data Bank Functions
1 1 0 0 x B B B 0CxH Data Bank Functions
1 1 0 1 0 B B B 0D0H Data Bank Functions
1 1 1 1 1 B B B 0F8H Play Voice Prompt

DR-V4

BBB:BYTES SEND FOLLOWING THIS COMMAND

DR-V5

DR-V5

DR-V4

DR-V4

DR-V4

MX93521 T O HOST ACKNO WLEDGES (OK Messages)

ACK0: 0A0H, NO D A TA ACCOMPNIED THIS A CKNOWLEDGE
ACK1: 0A1H, 1 DATA ACCOMPNIED THIS ACKNO WLEDGE
ACK2: 0A2H, 2 DATA ACCOMPNIED THIS ACKNO WLEDGE
ACK6: 0A6H, 6 DATA ACCOMPNIED THIS ACKNO WLEDGE

MX93521 TO HOST A CKNOWLEDGES (ERR OR Messgaes)

ERR0(0E0H): Command ERROR
ERR1(0E1H): Out of memory , MX93521 cannot perform RECORD function
ERR2(0E2H): No message found, MX93521 cannot perform PLA Y function
ERR3(0E3H): No Flash Memory Detected when power on
ERR4(0E4H): MX93521 Busy
ERR5(0E5H): Vocoder Mode , Play b uff er full, data rejected
ERR6(0E6H): No previous or next message found
ERR7(0E7H): MX93000 Command Busy
ERR8(0E8H): No empty block could be allocated for data bank usage

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REV. 2.2, JAN 20, 1998

6.2 MX93521 Power On Initialization Flo w Chart

ST ART

Clear MX93521 internal RAM read

systemsetup serial or parallel?

TP3054 or MX93000?

4M or 16M Flash memory init LCD

MX93521

NO

Flash memory

ID correct?

Is data link in

Flash memory correct?

NO

Is check data link

2nd time?

Format Flash memory &

create data link

Flash memory error

send CMD E3H

MX93521 Normal operation

YES

YES

NO

Flash memory OK send CMD

A1H+xxH

0A1H+000H DETECT SAMSUNG KM29N040 FLASH MEMORY
0A1H+001H DETECT SAMSUNG KM29N16000 FLASH MEMORY
0A1H+002H RESERVED
0A1H+003H RESERVED
0A1H+004H RESERVED
0A1H+005H RESERVED
0A1H+006H RESERVED
0A1H+007H RESERVED
ERR3(0E3H) NO MEMORY DETECTED

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MX93521

6.3 HOST TO MX93521 COMMAND DESCRIPTIONS

COMMAND 09H

FUNCTION: Move Message Pointer
RETURN: ACK0
RETURN: ERR6, IF REACH THE FIRST OR THE LAST MESSA GE IN THE MEMOR Y

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00001001
DMMMMMMM

IF CURRENT MESSAGE NUMBER IS N,
D=0, JUMP FORW ARD D=1, JUMP BACKW ARD
M=001H, POINT T O THE MESSA GE (N+1) M=001H, POINT T O THE MESSA GE (N-1)
M=002H, POINT T O THE MESSA GE (N+2) M=002H, POINT T O THE MESSA GE (N-2)
M=07FH, POINT T O THE LAST MESSA GE M=07FH, POINT TO THE FIRST MESSA GE

COMMAND 0AH

DR-V5

FUNCTION: P oint to specefic message
RETURN: ACK0
RETURN: ERR2, If no such message found in the FLASH memory

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00001010
M M M M M M M M Message Number (High Byte)
M M M M M M M M Message Number (Low Byte)

*The message pointer is point to the last message in the flash memory upon power on.

SAMPLES:

Forward to the next message 09 H 0 1H
Rewind to the previous message 09 H 81 H
Forward to the last message 0 9 H 7F H
Rewind to the the first message 09 H F F H
Move Message P ointer to message #258 (102H) 0AH 01 H 02 H

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MX93521

COMMAND 10H

FUNCTION: GET CURRENT MESSA GE INFOMA TION
RETURN: ACK6, DA TA1, DATA2, DAT A3, D AT A4, D A TA5, D A TA6 or ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0001000 0

D ATA1: HIGH BYTE OF CURRENT MESSAGE NUMBER
D ATA2: LOW BYTE OF CURRENT MESSAGE NUMBER
DATA 3: USER DA TA #1
DATA 4: USER DA TA #2
DATA 5: USER DA TA #3
DATA 6: USER DA TA #4

*RETURN ACK0 WHEN NO MESSAGE IN THE MEMOR Y
SAMPLES:

GET CURRENT MESSAGE INFOMATION 10 H

COMMAND 11H
COMMAND 12H

COMMAND 13H
COMMAND 14H

FUNCTION: ATT ACH USER DA T A TO CURRENT MESSAGE
RETURN: ACK0 or ERR0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00010BB B

USER DAT A #1
USER DAT A #2
USER DAT A #3
USER DAT A #4

* The USER D ATA is default to 0FFH
* Any data writen with this command will be AND with previous data
* When USER D ATA #1 is 055H. If write data 0AAH to it again, USER D ATA #1 will become 0H
* If no message in the FLASH memory , MX93521 will return ERR0

SAMPLES:

A TTACH D A TA 12H TO CURRENT MESSA GE 11 H 12H
A TTACH D A TA 12H/34H TO CURRENT MESSA GE 12 H 12H 34H
A TTACH D A TA 12H/34H/56H T O CURRENT MESSAGE 1 3H 12H 34H 56 H
A TTACH D A TA 12H/34H/56H/78H TO CURRENT MESSA GE 14 H 12H 34H 56H 78H

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MX93521

COMMAND 19H

FUNCTION: DELETE MESSAGE(S)
RETURN: ACK0 after deletion completed

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0 1 1 0 0 1
DM M M M M M M

IF CURRENT MESSAGE NUMBER IS N
D=0, DELETE FORW ARD
M=001H, DELETE ONE MESSAGE AFTER MESSAGE #N (MSG #N WILL BE DELETED)
M=002H, DELETE TW O MESSA GES AFTER MESSA GE #N (MSG #N, #N+1 WILL BE DELETED)
M=07FH, DELETE ALL MESSAGES AFTER MESSA GE #N (MSG #N, #N+1,.., #LAST WILL BE DELETED)
D=1, DELETE BACKW ARD
M=001H, DELETE ONE MESSAGE BEFORE MESSAGE #N (MSG #N WILL BE DELETED)
M=002H, DELETE TW O MESSAGES BEFORE MESSA GE #N (MSG #N, #N-1 WILL BE DELETED)
M=07FH, DELETE ALL MESSAGES BEFORE MESSA GE #N (MSG #N, #N-1,.., #1 WILL BE DELETED)

SAMPLES:

DELETE CURRENT MESSAGE 19 H 01 H
DELETE CURRENT & NEXT MESSAGE 19 H 02 H
DELETE CURRENT & PREVIOUS MESSAGE 19 H 82 H
DELETE ALL MESSAGES AFTER & INCLUDE CURRENT MESSAGE 19H 7F H
DELETE ALL MESSAGES BEFORE & INCLUDE CURRENT MESSAGE 1 9 H FF H

COMMAND 21H

FUNCTION: REC/PLAY MISC FUNCTION
RETURN:

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00100001
MMMMMMMM

* THIS COMMAND ONL Y V ALID WHEN IN RECORD/PLAY MODE

M Function Acknowledge Mode
01 H Stop Recording ACK2,CHKSUM_H,CHKSUM_L REC
01 H Stop Playing ACK0 PLAY
02 H REC/PLA Y PA USE ON/OFF ACK0 REC/PLAY
04 H Turn on counter display on LCD ACK0 REC/PLA Y
08 H Delete playing message ACK0 PLAY
10H Set REPEAT start point ACK0 PLAY
20 H Set REPEAT end point ACK0 PLAY
40 H Disable REPEAT mode ACK0 PLAY
80H Set Mark ACK0 REC/PLA Y

If HOST send command 21H/04H after REC or PLAY star t, MX93521 will automatically display a 5-digit REC or
PLAY counter MM:SS at current LCD cursor. MM is min ute. SS is second.

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MX93521

COMMAND 28H
COMMAND 29H
COMMAND 2AH
COMMAND 2BH
COMMAND 2CH

FUNCTION : RECORD MSG
BBB = 000, 001, 010, 011, 100
RETURN : ACK2, MSGNUM_H, MSGNUM_L
RETURN : A CK1, FORMA T (V OCODER mode, FORMAT=81H when recording with new format)

(VOCODER mode, FORMAT=80H when recording with old format)

RETURN: ERR1, WHEN OUT OF FLASH MEMORY, CANNO T PERFORM RECORD

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00101BBB

USER DAT A #1
USER DAT A #2
USER DAT A #3

USER DAT A #4
* USER DATA will be stored in the flash memory
* When RECORD , MX93521 will not switch MIC on automatically, HOST must turn on MIC before RECORD and turn
off MIC after RECORD STOP

SAMPLES:

RECORD MESSAGE WITHOUT USER D A TA 28 H
RECORD MESSAGE WITH 1 USER DAT A 12H 29 H 12 H
RECORD MESSAGE WITH 2 USER D AT A 12H, 34H 2AH 12 H 34 H
RECORD MESSAGE WITH 3 USER D AT A 12H, 34H, 56H 2BH 12 H 34H 56H
RECORD MESSAGE WITH 4 USER DAT A 12H, 34H, 56H, 78H 2CH 1 2H 34 H 56H 78 H

COMMAND 30H
COMMAND 31H

FUNCTION: PLA Y MESSAGE
RETURN: ACK2, MSGNUM_H, MSGNUM_L, ACK0(Vocoder mode)
RETURN: ERR2, No Message to play

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00110001

M M M M M M M M LENGTH (sec / unit)
M=000H, PLA Y TILL THE END OF MESSAGE
M=001H, PLA Y CURRENT MESSA GE FOR 1 SEC
M=080H, PLA Y CURRENT MESSA GE FOR 128 SEC OR REACH THE END OF MESSAGE
M=0FFH, PLA Y CURRENT MESSA GE FOR 255 SEC OR REA CH THE END OF MESSA GE

* When PLAY, MX93521 will not switch SPKR on automatically , HOST must turn on SPKR before PLAY and turn off
SPKR after PLAY STOP

SAMPLES:

PLAY MESSAGE TILL THE END OF MESSAGE 30H

PLAY MESSAGE TILL THE END OF MESSAGE 31H 00H

PLA Y FIRST 3 SEC OF CURRENT MESSAGE 31H 03H

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MX93521

COMMAND 32H

FUNCTION: Skip first M frames in the message with playback
RETURN: ACK2,MSGNUM_H,MSGNUM_L

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00011 010
H H H H H H H H Frame number (Hi-byte)
L L L L L L L L Frame n umber (Lo-byte) , 20ms/unit

SAMPLES:

PLAY THIS MESSAGE WITH SKIP FIRST 200 ms 32H 00H 0AH

* This setting will be clear after play end of this message.

COMMAND 39H

FUNCTION: JUMP T O MARK
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
001 11001

DMM MMMMM
D=0, FORW ARD D=1, BACKWARD
M=00H, Normal Playing
M=01H, Forward/Rewind to the 1st found mark from current position
M=02H, Forward/Rewind to the 2nd found mark from current position
..
M=7FH, Forward/Backward to the 127th found mark from current position

mark#1

-

-

Pos#A

mark#2

-

-

Pos#B

mark#3

-

mark#4

-

If current playing position is at Pos#A, command 39H/01H will forward to mark#1

command 39H/02H will forward to mark#2
command 39H/03H will forward to mark#3
command 39H/04H will forward to mark#4
command 39H/05H will forward to the end of message
command 39H/81H will rewind to the head of message

If current playing position is at Pos#B, command 39H/01H will forward to mark#3

command 39H/02H will forward to mark#4
command 39H/03H will forward to the end of message
command 39H/81H will rewind to mark#2
command 39H/82H will rewind to mark#1
command 39H/83H will rewind to the head of message

* If two marks are set too close to each other(<2 second), the second mark will be ignored.

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MX93521

COMMAND 3AH

FUNCTION: F AST FORW ARD/BACKW ARD PLA YING
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

001110 10

DMMMMMMM

U U U U U U U U Unit Length (20ms/unit)

D=0, FORW ARD
M=00H, PLAY 1 UNIT , SKIP 0 UNIT (NORMAL PLAY SPEED)
M=01H, PLAY 1 UNIT , SKIP 1 UNIT (2x SPEED)
M=02H, PLAY 1 UNIT , SKIP 2 UNIT (3x SPEED)
M=03H, PLAY 1 UNIT , SKIP 3 UNIT (4x SPEED)
M=07H, PLAY 1 UNIT , SKIP 7 UNIT (8x SPEED)
..
M=7FH, PLAY 1 UNIT , SKIP 127 UNIT (128x SPEED)

D=1, BACKW ARD
M=01H, PLA Y 1 UNIT, REWIND 1 UNIT (REPEAT SAME UNIT)
M=02H, PLA Y 1 UNIT, REWIND 2 UNIT (1x SPEED REWIND)
M=03H, PLA Y 1 UNIT, REWIND 3 UNIT (2x SPEED REWIND)
M=05H, PLA Y 1 UNIT, REWIND 5 UNIT (4x SPEED REWIND)
..
M=7FH, PLA Y 1 UNIT, REWIND 127 UNIT (126x SPEED)

SAMPLES:

NORMAL PLA YING 39 H 0 0H

FORW ARD T O THE 1ST FOUND MARK 39 H 0 1H

REWIND T O THE 2ND FOUND MARK 39 H 8 2H

NORMAL PLA YING 3AH 00 H 01 H

PLAY 20ms and SKIP 20ms (2x speed) 3A H 01H 0 1H

PLA Y 20ms and REWIND 60ms (2x speed) 3A H 83 H 01 H

PLAY 40ms and SKIP 40ms 3AH 01 H 02H

PLAY 100ms and SKIP 200ms 3A H 02H 0 5H

PLA Y 100ms and REWIND 200ms 3A H 82H 0 5H

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MX93521

COMMAND 41H

FUNCTION: MISC FUNCTION
RETURN:

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

010000 01

MMMMMM MM

M Function ACK OWLEDGE REMARK

01H Toggle V OCODER mode ACK0

02 H Append Recording ACK0

03 H Overwrite Recording ACK0

04 H T oggle SPKR on/off ACK0 valid only when using TP3054

DR-V5

DR-V4

DR-V4

DR-V4

DR-V4

DR-V4

DR-V4

DR-V4

DR-V4

DR-V4

ACK0
ACK0
ACK0

ACK0
ACK0
ACK0
ACK0
ACK0

ACK0 ack after erase complete

ACK2,BLKCNT_H, BLKCNT_L
ACK2,MIN,SEC
ACK2,MIN,SEC
ACK2,MIN,SEC

ACK2,CS_H,CS_L VOCODER mode

05H Voice Activated Recording

06 H Linear mode codec interface

07 H u-law mode codec interface

08 H T oggle MIC on/off ACK0 valid only when using TP3054

09H Play accross message boundary

0A H Play within message boundary

0BH4Direct CODEC Access

0CH5Old data format

0DH5New data format

DR-V5

DR-V5

10H1Erase all message ACK0 ack after erase complete

11H2Hard erase flash memory

12 H Reinitial flash memory ACK0 ack after erase complete

20H Check busy/Idle status ACK0 / ERR4

40 H Check available block ACK2,BLKCNT_H, BLKCNT_L

41H Check total block

DR-V4

42H Check available time

43H Check total time

DR-V4

44H Check message length

80H3Overrun counter ACK2,CNT_H,CNT_L VOCODER mode

81H3Get Message Checksum

1

The command 41H/10H er ase all data in good blocks. After b lock erase, the flash management data will be written
back to the flash memory . If HOST use flash memory as speech data memory and data bank memory . The command
41H/10H will erase both of the memory. To erase only speech memory, use command 19H. To erase data bank
memory , use command 0CAH. The commands to control data bank memory are described from command 0B0H to
command 0D6H

2

Prior Samsung ship their flash memory to customer, they will test the parts and randomly write data 00H to those
bad blocks. During the first power on, MX93521 will scan flash memory and create a good/bad table accordingly . After
that, MX93521 will search the good/bad table during power on initialization. Unless good/bad table is missing, MX93521
will not do flash memory initialization again.

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MX93521

We call command 41H/11H is hard erase flash memory . Because this command will erase all data in both good and
bad blocks. It is possible to erase the data in those bad blocks and turn the bad blocks into good block. In this case,
the original bad blocks could be unstable during normal operation. So, w e are not recommend to use this command
unless it is necessary.
After send command 41H/11H, HOST should issue a hardware reset by toggling RST\.

3

Command 41H/80H & 41H/81H are only valid after recording in V OCODER mode.

4

HOST could send PCM or u-law format data to CODEC directly. In this mode, MX93521 send PCM/u-Law data
received from HOST to CODEC (MX93000 or TP3054). MX93521 could store up to 512 samples data internally . If
inetrnal buffer is empty , MX93521 will disab le this mode automatically and send CMD 10H to HOST . At the beginning
of Direct CODEC Access mode, MX93512 will not send data to CODEC until MX93521 received 384 samples from
HOST .

5

Old data format is the data format used in MX93510 and MX93521 V3. Ne w data format is used in MX93521 V4 and
V5. Ne w format supports silence compression. It is alw ays set to use ne w data format in MX93521 V4. MX93521 V5
will reset to use new data format after power on, RECORD or PLA Y. So , if HOST want to RECORD or PLA Y message
using old data format, HOST needs to send command 41H/0CH every time before sending RECORD or PLAY
command to MX93521.

COMMAND 42H

FUNCTION: DETECT M FRAMES SILENCE ON THE PLAY/RECORD MODE
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 1 0 00 1 0
H H H H H H H H Silence Frame number (Hi-byte)
L L L L L L L L Frame number (Lo-byte) , 20ms/unit

SAMPLES:

DETECT 500 ms SILENCE ON THE PLAY/RECORD MODE 4 2 H 00 H 19H

* This setting will be clear after play end of this message.
* When detect the silence condition , mx93521 will response the data of 28H

COMMAND 48H

DR-V5

FUNCTION: T one Off
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 0 0 1 0 0 0 T one Off

COMMAND 49H

FUNCTION: BEEP GENERATOR
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 0 0 1 0 0 1 1000Hz T ONE (100ms on / 100ms off)
C C C C C G G G GAIN

CCCCC: BEEP COUNT , MAXIMUM 31 BEEPS

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MX93521

COMMAND 4BH

FUNCTION: T ONE GENERA TO R
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01001011 TONE
L L L L L G G G LENGTH (100ms/unit) & GAIN
F1 5 F14 F 13 F1 2 F1 1 F10 F9 F8 TONE FREQ (HIGH BYTE)
F7 F6 F5 F4 F3 F2 F1 F0 TONE FREQ (LOW BYTE)

GGG: 000 GAIN= -18 dB, 10 0 GAIN= -42 dB

00 1 GAIN= -24 dB, 10 1 GAIN= -48 dB
01 0 GAIN= -30 dB, 11 0 GAIN= -56 dB
01 1 GAIN= -36 dB, 11 1 GAIN= -62 dB

COMMAND 4EH
COMMAND 4FH

DR-V5

DR-V5

FUNCTION: DU AL TONE GENERAT OR
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01001110
F15 F 14 F1 3 F12 F1 1 F 10 F9 F8 TONE#1 FREQ (HIGH BYTE)
F7 F6 F5 F4 F3 F2 F1 F0 TONE#1 FREQ (LOW BYTE)
F15 F 14 F1 3 F12 F1 1 F 10 F9 F8 TONE#2 FREQ (HIGH BYTE)
F7 F6 F5 F4 F3 F2 F1 F0 TONE#2 FREQ (LOW BYTE)
G1 G1 G1 G1 G1 G1 G1 G 1 Scale for TONE#1
G2 G2 G2 G2 G2 G2 G2 G 2 Scale for TONE#2

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
010011 11
F15 F14 F13 F1 2 F1 1 F1 0 F9 F8 TONE#1 FREQ (HIGH BYTE)
F7 F6 F5 F4 F3 F2 F1 F0 TONE#1 FREQ (LOW BYTE)
F15 F14 F13 F1 2 F1 1 F1 0 F9 F8 TONE#2 FREQ (HIGH BYTE)
F7 F6 F5 F4 F3 F2 F1 F0 TONE#2 FREQ (LOW BYTE)
G1 G1 G1 G1 G1 G1 G1 G 1 Scale for TONE#1
G2 G2 G2 G2 G2 G2 G2 G 2 Scale for TONE#2
L L L L L L L L Length (10ms/unit)

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MX93521

F = (FREQ/8000)*65536

TONE (#) FREQ (HZ) F (DECIMAL) F (HEX) F (HIGH) F (LO W)

C5 523.25 4286.464 10BEH 10H BEH
D5 587.33 4811.407 12CBH 12H CBH
E5 659.26 5400.658 1519H 15H 19H
F5 698.46 5721.784 165AH 16H 5AH
G5 783.99 6422.446 1916H 19H 16H
A5 880.00 7208.960 1C29H 1CH 29H
B5 987.77 8091.812 1F9CH 1FH 9CH
C6 1046.50 8572.928 217DH 21H 7DH
D6 1174.66 9622.815 2597H 25H 97H
E6 1328.51 10883.154 2A83H 2AH 83H
F6 1396.91 11443.487 2CB3H 2CH B3H
G6 1567.98 12844.892 322DH 32H 2DH
A6 1760.00 14417.920 3852H 38H 52H
B6 1975.53 16183.542 3F38H 3FH 38H
C7 2093.00 17145.856 42FAH 42H F AH

DTMF F1 (Hz) F1 (Dec) F1 (Hex) F2 (Hz) F2 (Dec) F2 (Hex)

1 1209 9904.1 26B0H 697 5709.8 164EH
2 1336 10944.5 2AC1H 69 7 5709.8 164EH
3 1477 12099.6 2F44H 697 5709.8 164EH
A 1633 13377.5 3442H 697 5709.8 164EH
4 1209 9904.1 26B0H 770 6307.8 18A4H
5 1336 10944.5 2AC1H 770 6307.8 18A4H
6 1477 12099.6 2F44H 770 6307.8 18A4H
B 1633 13377.5 3442H 770 6307.8 18A4H
7 1209 9904.1 26B0H 852 6979.6 1B44H
8 1336 10944.5 2AC1H 852 6979.6 1B44H
9 1477 12099.6 2F44H 852 6979.6 1B44H
C 1633 13377.5 3442H 852 6979.6 1B44H
* 1209 9904.1 26B0H 941 7708.7 1E1DH
0 1336 10944.5 2AC1H 941 7708.7 1E1DH
# 1477 12099.6 2F44H 941 7708.7 1E1DH
D 1633 13377.5 3442H 941 7708.7 1E1DH

*For command 49H, 4BH, 4EH and 4FH. HOST have to make sure SPKR is on when using this commands.
*User could use scale factor in command 4EH&4FH combined with CODEC gain setting to set the desirab le DTMF
tone lev el

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MX93521

SAMPLES:

PLAY 2 BEEPS W/ -42DB GAIN 49H 14H
PLA Y TONE #C5 (523HZ) W/ -36DB GAIN FOR 2 SECOND 4BH A3H 10 H BEH
PLA Y TONE #E5 (659HZ) W/ -48DB GAIN FOR 1 SECOND 4BH 55H 15 H 19 H
Play DTMF-1 (High tone is 6 dB higher than low tone) 4EH 26H B0H 16 H 4EH FF H 7FH
Play DTMF-0 (High tone is 6 dB lower than low tone) 100ms 4F H 2 AH C1 H 1EH 1 D H 3F H 7F H 0AH
STOP PLA YING DTMF T ONE 4 8H

COMMAND 51H

FUNCTION: WRITE OUTPUT PORT UO0-2
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01 0 10 0 0 1
X X X X X UO2 UO1 UO0

*CMD 51H is only available in version DR-V3 and DR-V4

COMMAND 5AH

FUNCTION: MX93000 CODEC MISC. FUNCTION
RETURN: ACK0 or ERR7

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01011010
XXXXXA2A1A0
D7 D6 D5 D4 D3 D2 D1 D0

*Please reference to MX93000 data sheet for the definition of the MX93000 registers

SAMPLES:

T urn on MX93000 MIC path 5AH 00H 48 H
T urn off MX93000 MIC path 5A H 00H 01H
Set MIC to maxima gain 5A H 02H 0F H
Set MIC to minima gain 5A H 02H 00H
T urn on MX93000 SPKR path 5AH 00 H 03 H
T urn off MX93000 SPKR path 5A H 00H 01H
Set SPKR to maxima gain 5A H 03H 00H
Set SPKR to minima gain 5A H 03H 0F H

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MX93521

COMMAND 61H

FUNCTION: LED DISPLA Y FUNCTION
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01100001
LED2 LED1 T T T T T T

LED1=1, LED1 ON (MX93521 PIN5 LOW)
LED2=1, LED2 ON (MX93521 PIN4 LOW)
TTTTTT=0, NO FLASH
TTTTTT¹0, FLASH TIMER (64ms/unit)

SAMPLES:

LED1 ST AY ON 61 H 40 H
LED2 ST AY ON 61 H 80 H
LED1 FLASH (512ms ON / 512ms OFF) 61 H 48 H
LED2 FLASH (1024ms ON / 1024ms OFF) 61 H 90 H
LED1 & LED2 FLASH (128ms ON / 128ms OFF) 61 H C2 H
LED1 & LED2 OFF 61H 00H

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MX93521

COMMAND 6AH
COMMAND 6CH
COMMAND 6EH

FUNCTION: WRITE COMPRESSED VOICE DAT A TO MX93521 FOR PLAYING (VOCODER mode)
RETURN: ACK0 / ERR5
BBB = 010, 100, 110

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 1 1 0 1 B B B WRITE DA T A T O MX93521

BYTE#1
BYTE#2
BYTE#3
BYTE#4
BYTE#5
BYTE#6

MX93521 equipped a 64 words PLAY BUFFER, HOST should keep feeding compressed voice data to MX93521
when doing PLA Y function. Once PLAY BUFFER have no enough data to pla y, MX93521 will stop playing and send
command 10H to HOST. When the PLAY BUFFER is full, MX93521 will response ERR5. If this is the case, HOST
should re-send this command later. HOST must feed MX93521 at least 12 bytes data per 20 mini-second. When
HOST send command 30H, MX93521 will not start to play until received first 60 bytes data.

The procedure to do PLAY function in VOCODER mode:
STEP1:Turn on VOCODER mode (send command 41H/01H)

STEP2:Turn on SPKR
STEP3:Set PLA Y mode (Send command 30H)
STEP4:Send Compressed Voice data to MX93521 (Send command 6?H+BYTE+BYTE+..)
STEP5:If received ACK0, goto STEP4 to send ne xt 6AH/6CH/6EH command
If received ERR5, wait 20-180 ms, then go bac k to STEP4 to re-send previous command
If HOST want to stop PLAY function or HOST reach the end of message, then goto STEP6
If received 10H, goto STEP7 (HOST did not send data to MX93521 fast enough)
STEP6: Wait until MX93521 play out data in PLAY BUFFER (receiveing command 10H from MX93521)
STEP7: T urn off SPKR
STEP8: Turn off V OCODER mode (send command 41H/01H).

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MX93521

COMMAND 70H
COMMAND 71H
COMMAND 72H
COMMAND 73H
COMMAND 74H
COMMAND 75H
COMMAND 76H
COMMAND 77H

FUNCTION: WRITE LCD D A TA
BBB = 000, 001, 010, 011, 100, 101, 110, 111
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01110BBBLCD DATA

BYTE#1
BYTE#2
BYTE#3
BYTE#4
BYTE#5
BYTE#6
BYTE#7

* THIS COMMAND ONLY V ALID WHEN MX93521 SET TO SERIAL INTERF A CE MODE

SAMPLES:

DISPLA Y [ABCD] ON LCD LINE 1 7 4H 41H 42H 43H 44H

COMMAND 79H

FUNCTION: WRITE LCD COMMAND
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01111001
C7 C6 C5 C4 C3 C2 C1 C0

* THIS COMMAND ONLY V ALID WHEN MX93521 SET TO SERIAL INTERF A CE MODE

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30

MX93521

LCD COMMAND SET:

C7 C6 C5 C4 C3 C2 C1 C0
0000000101H Clear Display
0000001X02H Cursor return Home
0000010004H Cursor-1, no shift
0000010105H Cursor-1, shift
0000011006H Cursor+1, no shift
0000011107H Cursor+1, shift
0000100008H Display off
000011000CH Display on, Cursor off, Blink off
000011010DH Display on, Cursor off, Blink on
000011100EH Display on, Cursor on, Blink off
000011110FH Display on, Cursor on, Blink on
000100XX10H Move Cursor left
000101XX14H Move Cursor right
000110XX18H Display shift left
000111XX1CH Display shift right
1XXXXXXX80H-FFH Set DD RAM address
1000000080H Set cursor to the start of 1st line
11000000C0H Set cursor to the start of 2nd line

SAMPLES:

CLEAR LCD DISPLA Y 79 H 01 H
SET CURSOR T O THE START OF LINE 1 79 H 80H
SET CURSOR T O THE START OF LINE 2 79 H C0 H
SET CURSOR T O THE LINE 2, 3RD COLUMN 7 9H C2 H
MOVE CURSOR LEFT 79 H 10 H
MOVE CURSOR RIGHT 79H 14H

EXAMPLE:

To Display [RECORD ] at line #1 & [MM:SS] at line #2

CLEAR LCD DISPLA Y & RETURN CURSOR T O HOME 79 H 01 H
DISPLA Y [RECORD ] AT LCD LINE 1 76 H 52 H 4 5 H 43 H 4F H 52H 44 H
SET CURSOR T O THE LINE 2, 4TH COLUMN 79 H C3 H
TURN ON COUNTER DISPLAY ON LCD 21H 04H

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MX93521

COMMAND 80H

FUNCTION: Request f or RECORD/PLA Y counter
RETURN: ACK2, MINUTE, SECOND

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10000000

COMMAND 81H

FUNCTION: Request f or continuously RECORD/PLA Y counter
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10000001
T T T T T T T T 128 ms/unit

When MX93521 received command 81H, MX93521 will periodically send command 42H (Section 6.4) to HOST.
HOST could display the RECORD/PLAY counter on LCD accordingly. This function will be disabled by MX93521
when RECORD/PLA Y stop.

COMMAND 88H

DR-V4

FUNCTION: Download Message
RETURN: ACK1, FORMA T (VOCODER mode, FORMAT=81H if message is recorded with new format)

(VOCODER mode, FORMAT=80H if message is recorded with old format)

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10001000

Once MX93521 received this command, MX93521 will start to send compressed voice data to HOST by using
command 32H or 36H. When reach the end of message, MX93521 will send out command 30H. We recommend
HOST do checksum calculation during downloading. After download completed, use command 41H/81H to get the
checksum from MX93521 and compare if the checksum is match. The Chec ksum is calculated by EXCLUSIVE OR
all speech data in word format.

COMMAND 89H

DR-V5

FUNCTION: Upload Message (V ocoder mode)
RETURN: ACK2, MSGNUM_H, MSGNUM_L(Upload start) / ACK2, Checksum_H, chec ksum_L(Upload End)

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10001001
mmmmmmmm

m=00H,Upload Start m=01H,Upload End

COMMAND 8AH

DR-V5

FUNCTION: Upload Data
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10001010
D D D D D D D D High Byte
D D D D D D D D Low Byte

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REV. 2.2, JAN 20, 1998

MX93521

COMMAND 8CH

DR-V5

FUNCTION: Upload Data
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
100011 00
D D D D D D D D High Byte
D D D D D D D D Low Byte
D D D D D D D D High Byte
D D D D D D D D Low Byte

COMMAND 8EH

DR-V5

FUNCTION: Upload Data
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
100011 10
D D D D D D D D High Byte
D D D D D D D D Low Byte
D D D D D D D D High Byte
D D D D D D D D Low Byte
D D D D D D D D High Byte
D D D D D D D D Low Byte

COMMAND 91H

DR-V4

FUNCTION: Set Silence Level
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
100100 01
xxxxLL LLLevel

LLLL=0000 (Lev el 0) Set Highest silence threshold (Some of the speech will be treated as silence)
LLLL=0011 (Level 3) Default v alue
LLLL=1111 (Lev el 15) Set Lowest silence threshold (All signal are treated as speech, No silence compression at
all)

COMMAND 98H

DR-V5

FUNCTION: Read ROM/RAM wait state setting
RETURN: ACK2, WSTH,WSTL

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
100100 00

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33

MX93521

COMMAND 99H

DR-V5

FUNCTION: Set ROM/RAM wait state
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10010001
O O O O A A A A Wait State

OOOO:RAM Wait State AAAA: ROM Wait State

COMMAND A2H

DR-V4

FUNCTION: Read MX93521 RAM
RETURN: ACK2, DATA_H, DATA_L

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11010010

Address (High)
Address (Low)

COMMAND A4H

DR-V4

FUNCTION: Write MX93521 RAM
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11010100

Address (High)
Address (Low)
Data (High)
Data (Low)

* Only for testing purpose, user should not change any data in the RAM area

COMMAND AAH

DR-V5

FUNCTION: Read MX93521 internal ROM
RETURN: ACK2, DATA_H, DATA_L

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11010010

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34

Address (High)
Address (Low)

REV. 2.2, JAN 20, 1998

MX93521

COMMAND B0H

DR-V4

FUNCTION: Output all blocks which are used as data bank block
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10110000

MX93521 return block number by sending command 32H/34H/36H and ended with command 30H
32H, BLK_H, BLK_L
34H, BLK_H, BLK_L, BLK_H, BLK_L
36H, BLK_H, BLK_L, BLK_H, BLK_L, BLK_H, BLK_L
30H

COMMAND B1H

DR-V4

FUNCTION: Read Flash Memory
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10 1 10 0 01

Counter (read 1-255 byte from flash memory)

COMMAND B2H

DR-V4

FUNCTION: Read Flash Memory
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
101 10010

CNT_H
CNT_L (read 1-65535 bytes from flash memory)

When continuously read flash memory , MX93521 will send data with command 3XH to HOST & ended with command
30H. The address pointer will point to the next byte of the last b yte read. HOST could send another continuous read
command 0B1H or 0B2H to read out following data from flash memory .

COMMAND B8H

DR-V4

FUNCTION: Request for data bank block
RETURN: ACK2, BLK_H, BLK_L

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10111000

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35

MX93521

COMMAND BAH

DR-V4

FUNCTION: Set read/write starting address
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10 1 11 0 10

COMMAND BCH

DR-V4

FUNCTION: Set read/write starting address
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
10 1 11 1 00

Address Pointer (High)
Address Pointer (Low)

Block Number (High)
Block Number (Low)
Address Pointer (High)
Address Pointer (Low)

COMMAND C1H
COMMAND C2H
COMMAND C3H
COMMAND C4H
COMMAND C5H
COMMAND C6H
COMMAND C7H

DR-V4
DR-V4
DR-V4
DR-V4
DR-V4
DR-V4
DR-V4

FUNCTION: Write data to flash memory(Data Bank)
RETURN: ACK0 or ERR0 (Block number or address pointer is not accepted)

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 0 00 B BB

data to write to flash memory
data to write to flash memory
data to write to flash memory
data to write to flash memory
data to write to flash memory
data to write to flash memory
data to write to flash memory

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36

MX93521

COMMAND CAH

DR-V4

FUNCTION: Erase Block (Release data block)
RETURN: ACK0 or ERR0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 0 01 0 10

COMMAND D4H

DR-V4

FUNCTION: Read 1 word data from flash memory
RETURN: ACK2, DA TA_H, DATA_L

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 0 10 1 00

COMMAND D5H

DR-V4

Block (High)
Block (Low)

Block (High)
Block (Low)
Address (High)
Address (Low)

FUNCTION: Write 1 byte data to flash memory
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 0 10 1 01

COMMAND D6H

DR-V4

FUNCTION: Write 1 word (2 bytes) data to flash memory
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 0 10 1 01

Block (High)
Block (Low)
Address (High)
Address (Low)
Data

Block (High)
Block (Low)
Address (High)
Address (Low)
Data (High)
Data (Low)

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37

MX93521

COMMAND F AH

DR-V5

FUNCTION: Play Voice Prompt F rom R OM
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 1 11 0 01

COMMAND FCH

DR-V5

FUNCTION: Play Voice Prompt from FLASH memory
RETURN: ACK0

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
11 1 11 0 01

V oice Prompt ROM Starting address High Byte
V oice Prompt ROM Starting address Low Byte

Flash Memory Block # (High Byte)
Flash Memory Block # (Low Byte)
Flash Memory Pointer (High Byte)
Flash Memory Pointer (Low Byte)

Flash Memory Pointer range from 10H to 0FFEH
* When MX93521 received command 0FAH or 0FCH from HOST, MX93521 start to play voice prompt from R OM/

FLASH. After playing out all data, MX93521 will send command 10H to HOST. The voice prompt data are com­pressed speech data which is ended with one 0000H or six 0FFFFH in the data stream.

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38

MX93521

6.4 MX93521 TO HOST COMMANDS

MX93521 will always respond a A CK if received a command from HOST. Besides that, MX93521 will send command
to notify HOST that a specific event has happened. HOST could do action according to the command received.

COMMAND 10H

FUNCTION: Play mode, Reach the end of the playing message

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0 10 0 00

COMMAND 18H

FUNCTION: Play mode, Reach the start of the playing message

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 0 11 0 00

COMMAND 20H

FUNCTION: Record mode, out of flash memory

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 1 00 0 00

COMMAND 42H

FUNCTION: MX93521 outputs record / play counter

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01 0 00 0 10
M M M M M M M M Minute
S S S S S S S S Second

COMMAND 52H

DR-V4

FUNCTION: MX93521 outputs Message Number

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
01 0 10 0 10

Message number (high byte)
Message number (low byte)

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39

MX93521

COMMAND 30H
COMMAND 31H

DR-V4
DR-V4

COMMAND 32H
COMMAND 33H
COMMAND 34H
COMMAND 35H

DR-V4
DR-V4
DR-V4

COMMAND 36H
COMMAND 37H

DR-V4

FUNCTION: MX93521 outputs data with command 3XH and ending the function with command 30H

COMMAND 32H

FUNCTION: V ocoder record mode, MX93521 outputs compressed v oice data (silence frame)

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 1 10 0 10

BYTE #1
BYTE #2

COMMAND 36H

FUNCTION: V ocoder record mode, MX93521 outputs compressed voice data (speech frame)

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
00 1 10 1 10

BYTE #1
BYTE #2
BYTE #3
BYTE #4
BYTE #5
BYTE #6

When in V OCODER mode, MX93521 use this command to send compressed voice data to HOST.
MX93521 equipped with 64 byte buff er internally. If buff er is full, data will be discarded.

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REV. 2.2, JAN 20, 1998

MX93521

7. DC Characteristics¡G TA=0 to 70°C , VCC=5V±10¢H

Storage temperature range¡G-55°C - 150°C

SYMBOL PARAMETER CONDITION MIN TYP MAX UNIT

VC C supply voltage 4.5 5.0 5.5 Volt
GND ground 0 Volt
TTL LEVEL INPUT(IT)
VIH Input high voltage 2.0 V
VIL Input low voltage 0.8 V
SCHMITT TRIGGER INPUT (IS)
VIH Input high voltage 0.7*VCC V
VIL Input low voltage 0.3*VCC V
8mA OUTPUT (OA)
V OH Onput high voltage IOH=-8mA 2.4
V OL Onput low voltage IOL=8mA 0. 4 V
16mA OUTPUT (OB)
V OH Onput high voltage IOH=-16mA 2.4 V
V OL Onput low voltage IOL=16mA 0.4 V
SUPPL Y CERRENT
ICC NORMAL 45 70 mA
ICC HOLD MODE 10 mA
ICC POWER DOWN 3 6 mA

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41

8.AC TIMING AND CHARACTERISTICS:

RESET TIMING

MX93521

RST\

EAD15~EAD0

ED15~ED0

CONTROL

SIGNALS

OPT18~OPT0

BIO7~BIO0

T w(rst)

0001PC=0000

valid valid

(inactive)

0000

Note: Control Signals

HOLDA\EDCE\EPCE\ERD\EWR\
CAS\RAS\DRD\DWR\

SYMBOL P ARAMETER MIN NOM MAX UNIT

T w(rst) Reset low pulse width 2*46.5ns

OUTPUT PORT TIMING

AD15-AD0

EAD15-EAD0

OPT18~OPT0

BIO7~BIO0

XF\

PC=N, SXF/RXF

or OUT XX

PC=N+1 PC=N+2

Td(a-o)

OUTPUT PORTS AND EXTERNAL FLA G(XF\) TIMING

SYMBOL P ARAMETER MIN NOM MAX UNIT

Td(a-o) Address to output ports delay time 0 10 ns

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REV. 2.2, JAN 20, 1998

CODEC TRANSMIT AND RECEIVE TIMING

S

S

MX93521

CMCK

CFS

CDR0

CDX0

Td(ch-fs)

Tc

Td(ch-fs)

Th(dr)

Ts(dr)

N=1 N=2 N=3 N=4 SAMPLING 16 BIT

Td(ch-dx)

N=1 N=2 N=3 N=4 TRANSMIT 16 BIT

Tlpd

Thpd

SYMBOL PARAMETER MIN NOM MAX UNIT

Tc CMCK cycle time 650 n s
Tlpd CMCK low pulse duration 31 5 335 ns
Thpd CMCK high pulse duration 3 15 335 ns
Td(ch-fs) CMCK to CFS delay time 2 0 ns
Td(ch-dx) CMCK rising edge to Dx valid 10 ns
Ts(dr) DR set-up time before CMCK falling edge 1 0 ns
Th(dr) DR hold time before CMCK falling edge 10 ns

INTERRUPT TIMING

INT0\
INT1\
INT2\

AD15-AD0

fetch N+0 fetch N+1 fetch N+1 fetch N+1 fetch I

Tw

SYMBOL PARAMETER MIN NOM MAX UNIT

Tw INT\ low pulse duration 3 Q* ns

NOTE:Q=15.5 ns

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43

REV. 2.2, JAN 20, 1998

SRAM/ROM READ TIMING

MX93521

EDCE\,EPCE\

EAD15-EAD0

ERD\

ED15-ED0

SRAM WRITE TIMING

EDCE\

EAD15-EAD0

TCS

TAA

TDR

DATA IN

TOH

EWR\

ED15-ED0

TAS

TDW

DATA OUT

TWR

TDH

SYMBOL P ARAMETER MIN N OM MAX UNIT

TCS Chip select access time 26.5+WxT ns
TAA Address access time 26.5+WxT ns
TD R Data read setup time 1 2 ns
T O H Data hold from end of read 0 ns
TAS Address setup time 0 5 ns
T D W Data to EWR\ low overlap 1 2 ns
TD H Data hold from end of write 0 ns
TW R Write recovery time 0 ns

*NOTE: T=31ns

W:Wait state number

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44

HOLD TIMING

MX93521

EAD15-EAD0

ED15-ED0

EPCE\

EDCE\

EWR\

ERD\

HOLD\

HOLDA\

N N+1 N+2 N+3 N+4

T en(ah-a)

Ts(a-h)

Td(hh-ha)

SYMBOL PARAMETER MIN NOM MA X UNIT

Ts(a-h) Address set-up time before HOLD\ low 5 3Q-10 ns
Td(hh-ha) HOLD\ high to HOLDA\ high 0 1Q 1Q+10 ns
T en(ah-a) Address driven after HOLD A\ high 1Q-10 1Q 2Q ns

*NOTE: Q=15.5n

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45

9.PACKAGE INFORMATION

A

B

E

CD

IHG

F

1

25

26

50

51

75

76

100

N

M

J

K

L

P

O

A

B

E

CD

IHG

F

130

31

50

51

80

81

100

N

M

J

K

L

P

O

100-PIN LQFP

ITEM MILLIMETERS INCHES

A 16.00 ± .05 .630 ± .002
B 14.00 ± .05 .551 ± .002
C 14.00 ± .05 .551 ± .002
D 16.00 ± .05 .630 ± .002
E 12.00 [REF] .472 [REF]
F .60 [REF] .024 [REF]
G .60 [REF] .024 [REF]
H .16 [Typ.] .006 [Typ.]
I .50 [Typ.] .020 [Typ.]
J 1.00 [Typ.] .039 [Typ.]
K 0.60 [Typ.] .024 [Typ.]
L .25 [Typ.] .010 [Typ.]
M .10 max. .004 max.
N 1.4 ± .05 .055
O .10 min. .004 min.
P 1.50 max. .059 max.

NOTE: Each lead centerline is located within

.25mm[.01 inch] of its true position [TP] at a
maximum material condition.

MX93521

100-PIN PQFP

ITEM MILLIMETERS INCHES

A 24.80 ± .40 .976 ± .016
B 20.00 ± .13 .787 ± .005
C 14.00 ± .13 .551 ± .005
D 18.80 ± .40 .740 ± .016
E 12.35 [REF] .486 [REF]
F .83 [REF] .033 [REF]
G .58 [REF] .023 [REF]
H .30 [Typ.] .012 [Typ.]
I .65 [Typ.] .026 [Typ.]
J 2.40 [Typ.] .094 [Typ.]
K 1.20 [Typ.] .047 [Typ.]
L .15 [Typ.] .006 [Typ.]
M .10 max. .004 max.
N 2.75 ± .15 .018 ± .006
O .10 min. .004 min.
P 3.30 max. .103 max.

NOTE: Each lead centerline is located within

P/N:PM0426

.25mm[.01 inch] of its true position [TP] at a
maximum material condition.

REV. 2.2, JAN 20, 1998

46

MX93521

10. Ordering Information

P AR T NO. PA CKAGE
MX93521FC PQFP
MX93521UC LQFP

MX 93 521 ? C

MXIC COMMERCIAL
COMPANY 0-70oC
PREFIX

P ACKA GE TYPE

F: PQFP, U: LQFP
FAMILY
PREFIX PRODUCT NUMBER

Appendix 1. New added Features Compared with DR-V4

New features in dr-v5

1.Support both format used in v3 (without silence compression) and v4 (with silence compression)

2.Add version number and date inf ormation at rom address 10h-13h

3.Add direct codec accessing function

4.Add command 0AH (point to specific message)

5.Add DTMF tone generator

6.Add upload message from host to mx93521 function

7.Add command 99H (change rom/ram wait state)

8.Add play v oice prompt from flash memory function

9.Change silence threshold setting

New features in dr-v6

1.Add silence detection function

2.New codec.asm that improv e tone response

3.Add safe_chip_erase function (erase only good b locks)

4.Improve find_empty_b lk subroutine

5.Add skip frames function in play mode

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47

Appendix 2. Sample Flow Chart for HOST to Implement uP Serial Interface

SEND_RCVD_CMD( )

YES

SCLK low?

DA\ low?

NO

MX93521

call SND_RCVD_CMD ( ) every 50 usec

BYTE: txdata, cmdout[0..7]

txdata, cmdin[0..7]

NIBBLE; tbcnt, txcnt

tbcnt, rxcnt

BIT: data2snd, clk, obit

set SCLK high

RETURN

YES

txcnt++
txdata=cmdout [txcnt]
tbcnt

obit=1

txdata.0==0?

data2snd=0

txcnt=0

NO

YES

clk=0

tbcnt==0?

data2snd==0?

txdata=cmdout[0]

tbcnt=10

obit=0

tbcnt==10?

tbcnt==1?

txdata.0==0?

obit=1

txdata>>=1

YES

YES

YES

NO

YES

clk=1

obit=SOUT

rbcnt==9?

NO

rbcnt==0?

YES

obit==0?

YES

rbcnt ++

YES

NO

rxdata>>=1

rxdata=(obit<<7)

decode_cmd( )

rxcent=0

data bit

YES

YES

obit==0?

NO

cmdin[rxcnt]=rxdata

rbcent=0
rxdata=0

rxcnt==

(cmdin[0] & 7)

NO

rxcnt==0?

(cmdin[0] & 0xf0)

==0xe0?

NO

rxcnt ++

YES

NO

stop bit

error

rxcnt=0

rxdata=0

rbcnt=0

P/N:PM0426

YES

To send command to MX93521:
Load command to cmdout[0:7]
then set data2snd=1
After sending out all commands,
dats2snd will be cleared to 0.

tbcnt--

obit==1?

NO

SIN lowSIN high

clk=1

NO

48

CLK==1?

YES

set SCLK low

RETURN

Received a complete Command from MX93521.

Precess command which is stored in cmdin[0:7]

REV. 2.2, JAN 20, 1998

MX93521

Appendix 3. Recommend commands sequence to implement a digital recorder

(star* means function is optional)

A3.1 Record Message (TP3054):

Functions HOST send MX93521 Acknowledge
* T urn on SPKR 41H/04H ACK0
* Beep 49H/0AH ACK0
* T urn off SPKR 41H/04H ACK0

T urn on MIC 41H/08H ACK0
* LED #1 flash 61H/48H ACK0
* Append Recording 41H/02H ACK0
* Overwrite Recording 41H/03H ACK0
* T urn on V oice Activ ated Mode 41H/05H ACK0

Start to Record 2 8H ACK2,MSG#_H,MSG#_L
* Clear LCD 79H/01H ACK0
* Display [RECORD] on LCD 76H/52H/45H/43H/4FH/52H/44H ACK0
* Move cursor to line #2, col #3 79H/C3H ACK0
* T urn on message counter displa y on LCD 21H/04H A CK0

A3.2 Stop Recording (TP3054):

Functions HOST send MX93521 Acknowledge

Stop Recording 21H/01H ACK2,CHKSUM_H, CHKSUM_L

T urn off MIC 41H/08H ACK0
* LED #1 off 61H/00H ACK0
* T urn on SPKR 41H/04H ACK0
* Beep 49H/0AH ACK0
* T urn off SPKR 41H/04H ACK0

A3.3 Out of Memory , Received command 20H from MX93521 during Recording (TP3054):

Functions HOST send MX93521 Acknowledge

T urn off MIC 41H/08H ACK0
* LED #1 off 61H/00H ACK0
* T urn on SPKR 41H/04H ACK0
* Beep 49H/0AH ACK0
* T urn off SPKR 41H/04H ACK0

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49

MX93521

A3.4 Play Message (TP3054):

Functions HOST send MX93521 Acknowledge
Move message pointer to specific message 09H/xxH ACK0/ERR6

T urn on SPKR 41H/04H ACK0
* Beep 49H/0AH ACK0
* LED #2 flash 61H/88H ACK0

Start to Play 30H ACK2,MSG#_H,MSG#_L
* Send msg counter to HOST every 512 ms 81H/04H ACK0
* Clear LCD 79H/01H ACK0
* Display [PLAY] on LCD 74H/50H/4CH/41H/59H ACK0
* Move cursor to line #2, col #3 79H/C3H ACK0
* Turn on message counter display on LCD 21H/04H ACK0

A3.5 Function During Playing Message

Functions HOST send MX93521 Acknowledge
* Fast Forw ard Playing (2x) 3AH/01H/01H ACK0
* Rewind Playing (2x) 3AH/81H/01H ACK0
* Set REPEAT start point 21H/10H ACK0
* Set REPEA T end point 21H/20H ACK0
* Disable REPEAT mode 21H/40H ACK0

A3.6 Stop Playing Message (TP3054):

Functions HOST send MX93521 Acknowledge

Stop Playing 21H/01H ACK0
* LED #2 off 61H/00H ACK0
* Beep 49H/0AH ACK0

Turn off SPKR 41H/04H ACK0

A3.7 End of Message, Received command 10H from MX93521 during Pla ying (TP3054):

Functions HOST send MX93521 Acknowledge
* LED #2 off 61H/00H ACK0
* Beep 49H/0AH ACK0

Turn off SPKR 41H/04H ACK0

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50

A3.8 Message Search

Functions HOST send MX93521 Acknowledge
1 T urn on SPKR 41H/04H ACK0
2 Move message pointer to the 1st msg 09H/FFH ACK0/ERR6
3 Play current message for 3 second 31H/03H ACK0
4 10H
5 Move message pointer to the next message 09H/01H ACK0/ERR6
6 if received ACK0, goto Step #3

if received ERR6, goto Step #7
7 Turn off SPKR 41H/04H ACK0

A3.9 Message Found

Functions HOST send MX93521 Acknowledge
1 Stop playing 21H/01H ACK0
2 Play current message 30 H ACK0
3 Turn off SPKR 41H/04H ACK0

MX93521

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51

MX93521

A3.10 The procedure f or using flash memory as data bank memory

HOST SEND MX93521 RESPONSE

1 Request a empty block to be used 0B8H 0A2H, BLK_H, BLK_L

as data block
2 Set continuous read start address 0BCH, BLK_H, BLK_L, ADR_H, ADR_L 0A0H
3 Continuous Read 20 bytes 0B1H, 14H 0A0H

037H,D1,D2,D3,D4,D5,D6,D7
037H,D1,D2,D3,D4,D5,D6,D7
036H,D1,D2,D3,D4,D5,D6
030H

Continuous Read 298 bytes 0B2H, 01H,2AH 0A0H

037H,D1,D2,D3,D4,D5,D6,D7
037H,D1,D2,D3,D4,D5,D6,D7

......

034H,D1,D2,D3,D4
030H

4 Continuous Write 7 bytes 0C7H,D1,D2,D3,D4,D5,D6,D7 0A0H

Continuous Write 6 bytes 0C6H,D1,D2,D3,D4,D5,D6 0A0H

Continuous Write 5 bytes 0C5H,D1,D2,D3,D4,D5 0A0H

Continuous Write 4 bytes 0C4H,D1,D2,D3,D4 0A0H

Continuous Write 3 bytes 0C3H,D1,D2,D3 0A0H

Continuous Write 2 bytes 0C2H,D1,D2 0A0H

Continuous Write 1 bytes 0C1H,D1 0A0H
5 Erase Block CAH, BLK_H, BLK_L 0A0H
6 Read 1 word from flash memory 0D4H, BLK_H, BLK_L, ADR_H, ADR_L 0A2H, DATA1, DATA2
7 Write 1 byte to flash memory 0D5H, BLK_H, BLK_L, ADR_H, ADR_L, D1 0A0H
8 Write 2 bytes to flash memory 0D6H, BLK_H, BLK_L, ADR_H, ADR_L, D1, 0A0H

D2

Each block in flash memory is 4K byte. The first 16 bytes are reserved for MX93521 as data link data, HOST could
read but could not write data to it. So, the host usab le data are from address 10H-0FFFH.

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REV. 2.2, JAN 20, 1998

Appendix 4. Flow Chart of using MX93521 in V OCODER mode (Parallel Interface)

A4.1 Record mode (Background)

RECORD

RESET MX93521

[BIT]
WAIT4ACK=1
RCVD=DATA2SND=0
STOP1=STOP2=0
PAUSE1=PAUSE2=0
END_OF_REC=0
[BYTE]
TXCNT=RXCNT=0

WAIT4ACK==0?

YES

NO

MX93521

WAIT4ACK==0?

YES

[VOCODER MODE ON]
CMDOUT[0]=0x41
CMOUT[1]=0x01
DATA2SND=WAIT4ACK=1

WAIT4ACK==0?

YES

[MIC ON]
CMDOUT[0]=0x5A
CMDOUT[1]=0x00
CMDOUT[2]=0x48
DATA2SND=WAIT4ACK=1

Wait 10 msec for MX93000 to settle

WAIT4ACK==0?

YES

[SET MIC GAIN]
CMDOUT[0]=0x5A
CMDOUT[1]=0x02
CMDOUT[2]=0x04
DATA2SND=WAIT4ACK=1

NO

NO

NO

TOGGLE PAUSE?

NO

STOP RECORDING?

NO

END_OF_REC==1?

YES

[VOCODER MODE OFF]
CMDOUT[0]=0x41
CMDOUT[1]=0x01
DATA2SND=WAIT4ACK=1

WAIT4ACK==0?

YES

RETURN

YES

PAUSE1=WATI4ACK=1

YES

PAUSE1=WATI4ACK=1

NO

NO

P/N:PM0426

WAIT4ACK==0?

YES

[STAR T T O RECORD]
CMDOUT[0]=0x28
DA TA2SND=WAIT4ACK=1

NO

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53

A4.2 Play mode (Background)

PLAY

RESET MX93521

[BIT]
WAIT4ACK=1
RCVD=DATA2SND=0
[BYTE]
TXCNT=RXCNT=0

WAIT4ACK==0?

NO

YES

YES

MX93521

RCVD==1?

NO

CMDIN[0]==0x10?

YES

[VOCODER MODE ON]
CMDOUT[0]=0x41
CMOUT[1]=0x01
DATA2SND=WAIT4ACK=1

WAIT4ACK==0?

YES

[SPEAKER ON]
CMDOUT[0]=0x5A
CMDOUT[1]=0x00
CMDOUT[2]=0x03
DATA2SND=WAIT4ACK=1

Wait 10 msec for MX93000 to settle

WAIT4ACK==0?

YES

[SET SPKR GAIN]
CMDOUT[0]=0x5A
CMDOUT[1]=0x03
CMDOUT[2]=0x05
DATA2SND=WAIT4ACK=1

NO

NO

YES

WAT4ACK==0?

YES

CMDIN[0]==0xA0?

YES

CMDIN[0]==0xA0?

(LOAD DATA FROM MEMORY TO BYTE[0..5])
(LOAD NO MORE THAN 6 BYTES AT A TIME)
(BYTECNT=BYTES LOADED)

CMDOUT[0]=0x68+BYTECNT
FOR (i=0; i<BYTECNT;i++)

NO

NO

CMDIN[0]==0xE5?

YES

[MX93521 BUSY]
[RESEND PREVIOUS DATA]
DELAY 2 msec
DATA2SND=WAIT4ACK=1

NO

P/N:PM0426

Wait 10 msec for MX93000 to settle

WAIT4ACK==0?

YES

[STAR T T O RECORD]
CMDOUT[0]=0x30
DA TA2SND=WAIT4ACK=1

NO

[VOCODER MODE OFF]
CMDOUT[0]=0x41
CMDOUT[1]=0x01
DATA2SND=WAIT4ACK=1

WAIT4ACK==0?

RETURN

54

NO

YES

REV. 2.2, JAN 20, 1998

A4.3 Command/Data Send/Receive Handling Routine (Interrupt)

INTERRUPT

MX93521

PACK\ = LOW?

YES

[READ DATA FROM MX93521]

RXDATA[7..0]=BIO[7..0]

STOP2==1?

NO

STOP1==1?

NO

CMDIN[RXCNT]=RXDATA

RXCNT==

CMDIN[0]& 0x7 ?

YES

DECODE_CMD ( )

RXCNT=0

NO

YES

YES

[WRITE CMD TO MX93521]

BIO=0x21
STOP2=1

NO

(RXCNT==0) &&

(CMDIN[0] &0xF0

==0xE0?

NO

RXCNT++

[WRITE CMD TO MX93521]

BIO=0x01

STOP1=STOP2=1

[WRITE DATA TO MX93521

DATA2SND==1?

YES

BIO=CMDOUT[TXCNT]

TXCNT==

CMDOUT[0] & 0x7 ?

YES

NO

NO

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TXCNT=0

DATA2SND=0

RETURN

TXCNT++

REV. 2.2, JAN 20, 1998

A4.4 Received Command Interpretation Routine (Interrupt)

DECODE_CMD ( )

MX93521

CMDIN[0]==0x36?

NO

CMDIN[0]==0x32?

NO

CMDIN[0]==0x30?

NO

CMDIN[0]==0x10?

YES

YES

[WRITE DATA TO MEMORY}
BYTECNT=CMDIN{0} & 0x7

FOR (i=0; i<BYTECNT; i++)

BYTE[i] =CMDIN[i+1]

YES

END_OF_REC=1

YES

RCVD=1

P/N:PM0426

CMDIN[0] & 0xF0

==0xA0?

NO

CMDIN[0] & 0xF0

==0xE0?

NO

RETURN

YES

YES

END_OF_REC=1

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56

MX93521

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http : //www.macronix.com

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

57