Yamaha Disklavier Silent Mark III Service Manual page 25

HD64F2128 (X2690A00) CPU (FLASH)
PIN
NAME I/O
NO.
1 I/O Port5 / Transmission data
P50/TxD0
2 I/O Port5 / Reception data
P51/RxD0
3 I/O Port5 / Serial clock
P52/SCL0
4 I Reset
/RES
5 I Non-maskable interrupt
NMI
6 Power supply +5V
Vcc
7 I Stand-by mode signal
/STBY
8 Ground
Vss
9 I
XTAL
Crystal oscillator
10 I
EXTAL
11 I
MD1
Mode select
12 I
MD0
13 Analog ground
AVss
14 I
P70/AN0
15 I
P71/AN1
16 I
P72/AN2
17 I
P73/AN3
Port7 / Analog input
18 I
P74/AN4
19 I
P75/AN5
20 I
P76/AN6
21 I
P77/AN7
22 Analog power supply +5V
AVcc
23 I/O
P60
24 I/O
P61
25 I/O
P62
26 I/O
P63
Port6
27 I/O
P64
28 I/O
P65
29 I/O
P66
30 I/O
P67
31 Power supply +5V
Vcc
32 I/O Port2 / Serial clock
P27/SCK1
M38881M2-062FP (XS345A00) SCI
PIN
NAME I/O
No.
1 D0 I/O Data 0
2 /WR O /WR
3 /RD O /RD
4 /S I Chip Enable
5
BM I Fixed to Low
6 INTR O IRQ Request
7 RxD3 I Receive data CH3
8 TxD3 O Transmit data CH3
9 RxD2 I Receive data CH2
10 TxD2 O Transmit data CH2
11 RxD1 I Receive data CH1
12 TxD1 O Transmit data CH1
13 P16 I Remote control data6
14 P15 I Remote control data5
15 P14 I Remote control data4
16 P13 I Remote control data3
17 P12 I Remote control data2
18 CNVss - GND
19 /RES I Reset
20 INT I Not used
21 P10 I Remote control data1
22 XIN I 8MHz
23 XOUT O NC
24 Vss - GND
25 PO7 I Panel switch read 7
26 PO6 I Panel switch read 6
27 PO5 I Panel switch read 5
28 PO4 I Panel switch read 4
29 PO3 I Panel switch read 3
30 PO2 I Panel switch read 2
31 PO1 I Panel switch read 1
32 PO0 I Panel switch read 0
FUNCTION
FUNCTION
PIN
NAME I/O
NO.
33 I/O Port2 / Reception data
P26/RxD1
34 I/O Port2 / Transmission data
P25/TxD1
35 I/O Port2 / Serial clock
P24/SCL1
36 I/O Port2 / Serial data
P23/SDA1
37 I/O
P22
38 I/O Port2
P21
39 I/O
P20
40 Ground
Vss
41 I/O
P17
42 I/O
P16
43 I/O
P15
44 I/O
P14
Port1
45 I/O
P13
46 I/O
P12
47 I/O
P11
48 I/O
P10
49 I/O
P30
50 I/O
P31
51 I/O
P32
52 I/O
P33
Port3
53 I/O
P34
54 I/O
P35
55 I/O
P36
56 I/O
P37
57 I/O
P40//IRQ2
58 I/O Port4 / Interrupt request
P41//IRQ1
59 I/O
P42//IRQ0
60 I/O
P43
61 I/O
P44
Port4
62 I/O
P45
63 I/O
P46
64 I/O Port4 / Serial data
P47/SDA0
PIN
NAME I/O
No.
33 PB7 O NC
34 PB6 O NC
35 PB5 O Panel matrix sink 5
36 PB4 O Panel matrix sink 4
37 PB3 O Panel matrix sink 3
38 PB2 O Panel matrix sink 2
39 PB1 O Panel matrix sink 1
40 PB0 O Panel matrix sink 0
41 PA7 O Panel matrix source 7
42 PA6 O Panel matrix source 6
43 PA5 O Panel matrix source 5
44 PA4 O Panel matrix source 4
45 PA3 O Panel matrix source 3
46 PA2 O Panel matrix source 2
47 PA1 O Panel matrix source 1
48 PA0 O Panel matrix source 0
49 A7 I Address 7
50 A6 I
Address 6
51 A5 I Address 5
52 A4 I Address 4
53 A3 I Address 3
54 A2 I Address 2
55 A1 I Address 1
56 A0 I Address 0
57 Vcc - +5
58 D7 I/O Data 7
59 D6 I/O Data 6
60 D5 I/O Data 5
61 D4 I/O Data 4
62 D3 I/O Data 3
63 D2 I/O Data 2
64 D1 I/O Data 1
DU1A
KEY SENSOR: CPU1
FUNCTION
CONTROLLER: IC026
FUNCTION
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