Yamaha P-250 Service Manual Download

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P-250

LSI PIN DESCRIPTION

PD780031AYGK-NO1-9ET (XZ916100) LED DRIVER/SWITCH SCAN ········································ 16

PD780031AYGK-NO2-9ET (X0031100) LKS ·················································································· 16

HD6417709SHF200B (X2687A00) CPU (SH3) ················································································· 17

T8F02TB-0102 (X0060A00) SWP50 ·································································································· 18

M66291GP (X2156A00) USB Controller ·························································································· 20

PCM1730E-1/2K (X2077A00) DAC (Digital to Analog Converter) ····················································· 20

PIN

NO.

I/O

FUNCTION

NAME

PIN

NO.

I/O

FUNCTION

NAME

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

P50/A8
P51/A9

P51/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15

Vss0

P30
P31

P32/SDA0
P33/SCL0

P34
P35
P36

P20/SI30
P21/SO30
P22/SCK30
P23RxD0

P24/TxD0
P25/ASCK0

AVss

P17/ANI7
P16/ANI6
P15/ANI5
P14/ANI4
P13/ANI3
P12/ANI2
P11/ANI1

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

-
-

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

-
-
I
I
I
I
I
I
I

Port 5 / Higher address bus

Ground
Power supply

Port 3

Port 3 / Serial data input/output
Port 3 / Serial clock input/output

Port 3

Port 2 / Serial data input
Port 2 / Serial data output
Port 2 / Serial clock input/output
Port 2 / Serial data input
Port 2 / Serial data output
Port 2 / Serial clock input/output
Power supply
Ground

Port 1 / A/D converter analog input

33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

P10/ANI0

REF

RESET

XT2
XT1

X2
X1

Vss1

P00/INTP0
P01/INTP1
P02/INTP2

P03/INTP3/ADTRG

P70/TI00/TO0
P71/TI01

P72/TI50/TO50
P73/TI51/TO51

P74/PCL
P75/BUZ

P64/RD

P65/WR

P66/WAIT

P67/ASTB

P40/AD0
P41/AD1
P42/AD2
P43/AD3
P44/AD4
P45/AD5
P46/AD6
A47/AD7

I
I
-
I
-
I
-
-
I
-

I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O

Port 1 / A/D converter analog input
A/D converter reference voltage input
Analog power supply
System reset input

Subsystem clock oscillation

Internally connected

Main system clock oscillation

Ground

Port 0 / External interrupt request input

Port 0 / External interrupt request input / Trigger signai input
Port 7 / External count clock input / 16-bit timer/event counter 0 output

Port 7 / Capture trigger input

Port 7 / External count clock input / 8-bit timer/event counter 50 output
Port 7 / External count clock input / 8-bit timer/event counter 51 output

Port 7 / Clock output
Port 7 / Buzzer output
Port 6 / Strobe signal output for reading
Port 6 / Strobe signal output for writing
Port 6 / Wait insertion
Port 6 / Strobe output

Port 4 / Lower address/data bus

µPD780031AYGK-NO2-9ET (X0031100) LKS

µPD780031AYGK-NO1-9ET (XZ916100) LED DRIVER/SWITCH SCAN

IC010
IC010

（

LSI

端子機能表）