Yamaha PSR-S710 Service Manual page 37

PCA9564PW (X6155A0R)
DMH: IC27 (PSR-S910)
2
Parallel bus to I C-bus controller
D0 V
1 20 DD
D1 SDA
2 19
D2 SCL
3 18
D3 RESET
4 17
D4 5 16 INT
D5 6 15 A1
D6 7 14 A0
D7 CE
8 13
DNU RD
9 12
V WR
10 11
SS
LA4705NA-E (XQ619A00)
AM: IC051
Power Amplifier
D7 D6
8
PCA9564
19 FIL TER
SDA
SD7 SD6
SDA CONTROL
I2CDAT – DATA REGISTER – READ/WRITE
TE TO6
AA ENSIO STA STO SI
I2CTO – TIMEOUT REGISTER – WRITE ONLY
18
SCL FIL TER
BIT7 BIT6
SCL CONTROL I2CADR – OWN ADDRESS – READ/WRITE
ST7 ST6
I2CST – SATATUS REGISTER – READ ONLY
ENSIO STA STO SI
AA ENSIO
I2CCON – CONTROL REGISTER – READ/WRITE
CR0
CLOCK SELECTOR CR1
CR2
OSCILLATOR
13
11
9 DNV: Do not use
CE WR
10
Vss: Ground
DATA
D5 D4 D3 D2 D1 D0
7 6 4 1
5 3 2
BUS BUFFER
A1
SD5 SD4 SD3 SD2 SD1 SD0
0
TO5
TO4 TO3 TO2 TO1 TO0
0
BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
1
ST5 ST4 ST3 ST2 ST1 ST0
0
STA STO SI CR2 CR1 CR0
1
CONTROL BLOCK
INTERRUPT CONTROL
14
12 16 17 15
RD INT RESET A1 A0
CONTROL SIGNALS
PSR-S710/PSR-S910
A0
1
0
0
0
1
POWER–ON
RESET
20
V
DD
37