Service manual

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IC17 SCSP

IC CUSTOM CHIP SCSP QFP YAMAHA

Parts No. : 315-5687

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96

97

• Description

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

1/0

I/0

-

1!0

0

0

-

I

-

I

I

-

I

I

I

I

-

0

0

0

0

0

0

-

0

-

0

1!0

65

64

33

32

Pin Name

MCD6

MCD5

MCD4

MCD3

vss

MCD2

MCDI

MCDO

MCRDYN

MCINTN

VDD

RESETN

vss

MACK

INT2N

INTlN

INION

VDD

ESD

EBCK

ELRCK

MIDIINP

VSS

MIDI

OUT

MRASN

MWEUN

MWELN

MCASON

MCASIN

MOEN

VDD

MAO

MAl

MA2

MA3

MA4

MAS

vss

MA6

MA7

MAS

MDO

Function

MCPU data bus

GND

MCPU data bus

Ready signal to

MCPU

Interrupt request to MCPU

Power

supply (Sv)

SCSP reset input

GND

SCSP master clock: 512fs (22.58MHz)

SCSP external interrupt request input

Power supply (Sv)

Digital audio interface serial data input

Digital audio interface BCK

Digital audio interface LRCK

MIDI input

·.

GND

MIDI output

RAS signal

Write signal corresponding to MD[IS-8]

Write signal corresponding to

MD[7-0]

CAS signal

Sound memory data output enable

Power supply (Sv)

Sound memory address

GND

Sound memory address

Sound memory data

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