MX93521 Ver la hoja de datos (PDF) - Macronix International

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MX93521

ALL DIGITAL VOICE RECORDER MACHINE BASED ON THE MX93521 VOCODER CHIP

Macronix International 

MX93521

4.PIN DESCRIPTION

4.1 DSP BASIC (22 PINS )

SYMBOL

VDSP

GND

FLL\

TYPE

I

PIN # (PQFP) PIN # (LQFP)

23,43,69,84,41,39 20,40,66,81,38,36

24,44,53,70,85 21,41,67,82

54

51

XTLI

88

85

XTLO

89

86

RST\

I

96

93

PACKB\ OA

14

11

HOLD\

I

67

64

HOLDA\ OA

66

63

EROM

I

97

94

SCLK

I

40

37

X32O

OA

13

10

X32I

12

9

DESCRIPTION

5V power source

Ground

FLL\ low to set MX93521 running from single

low crystal

32.256Mhz Crystal input

32.256Mhz Crystal output

Power on Reset, Schmite triggered

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 DSP clock down and release bus

Ack to HOLD\ signal

Disable internal ROM, use external ROM only

Transmit/receive data clock

32.768Khz Crystal output

32.768Khz Crystal input

4.2 DSP EXTERNAL MEMORY(40 pins)

SYMBOL

EAD0-EAD15

ED0~ED15

EDCE\

EPCE\

ERD\

EWR\

NC

TYPE

OB

I/OB

OB

OB

OB

OB

PIN # (PQFP)

61~55,52~45,42

68,71~83,86~87

65

64

63

62

90~93

PIN # (LQFP)

58~52,50,48~42,39

65,68~80,83~84

62

61

60

59

87~90

DESCRIPTION

Address Bus

Data Bus

External data chip enable

Resered for future use

Flash external read

Flash external write

No connection

4.3 uP INTERFACE(10 pins)

4.3.1 Serial Interface:(UPMODX=1)

SYMBOL

DA\

SOUT

BIO(7..0)

TYPE

OC

OC

OB

PIN # (PQFP)

37

33

25~32

PIN # (LQFP)

34

30

22~29

DESCRIPTION

Data Available (Output port OPT17)

Serial Data Out (Output port OPT16)

Drive LCD Display

P/N:PM0426

REV. 2.2, JAN 20, 1998

6

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