Yamaha PortaTone PSR-2000 Manuale di servizio - Pagina 7
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PSR-1000/PSR-2000
µPD789022GB-A15-8E (XZ560100) CPU
PIN
NAME
I/O
NO.
1
P12
I/O
2
P11
I/O
Port 1
3
P10
I/O
4
P47/KR7
I/O
5
P46/KR6
I/O
6
P45/KR5
I/O
7
P44/KR4
I/O
Port 4/Key return signal detection input
8
P43/KR3
I/O
9
P42/KR2
I/O
10
P41/KR1
I/O
11
P40/KR0
I/O
12
NC
13
IC
Internally connected (N.C.)
14
X2
Clock
15
X1
I
16
VSS0
Ground
17
VDD0
Power supply
18
/RESET
I
System reset
19
P53
I/O
Port 5
20
P52
I/O
21
P51/TO2
I/O
Port 5/16-bit timer output
22
P50/TI0/TO0
I/O
Port 5/External count clock input to 8-bit timer/8-bit timer output
S1D13305F00B100 (XQ595A00) LCDC (LCD Controller)
PIN
NAME
I/O
NO.
1
VA5
O
2
VA4
O
3
VA3
O
VRAM address bus
4
VA2
O
5
VA1
O
6
VA0
O
7
/VWR
O
VRAM read/write
8
/VCE
O
Memory control
9
/VRD
-
Not used
10
/RES
I
Initial clear
11
NC
-
Not used
12
NC
-
Not used
13
/RD
I
Read strobe
14
/WR
I
Write strobe
15
SEL2
I
Bus select
16
SEL1
I
Bus select
17
OSC1
I
Clock
18
OSC2
O
Clock
19
/CS
I
Chip select
20
A0
I
Data mode select
21
Vdd
-
Power supply
22
D0
I/O
23
D1
I/O
24
D2
I/O
25
D3
I/O
Data bus
26
D4
I/O
27
D5
I/O
28
D6
I/O
29
D7
I/O
30
XD3
O
Data bus output for 4 bit dot
18
FUNCTION
FUNCTION
PIN
NAME
I/O
NO.
23
I/O
Port 3/External interrupt input/Capture edge input
P32/INTP2/CPT2
24
P31/INTP1
I/O
Port 3/External interrupt input
25
P30/INTP0
I/O
26
P22/RXD/SI0
I/O
Port 2/Asynchronous serial interface serial data input/Serial interface serial data input
27
P21/TXD/SO0
I/O
Port 2/Asynchronous serial interface serial data output/Serial interface serial data output
28
I/O
P20/ASCK//SCK0
Port 2/Asynchronous serial interface serial clock input/Serial interface serial clock
29
P07
I/O
30
P06
I/O
31
P05
I/O
32
P04
I/O
Port 0
33
P03
I/O
34
P02
I/O
35
P01
I/O
36
P00
I/O
37
NC
38
VDD1
Power supply
39
VSS1
Ground
40
P17
I/O
41
P16
I/O
42
P15
I/O
Port 1
43
P14
I/O
44
P13
I/O
PIN
NAME
I/O
NO.
31
XD2
O
32
XD1
O
Data bus output for 4 bit dot
33
XD0
O
34
XECL
O
S driver enable, chain clock
35
XSCL
O
Data bus shift clock
36
Vss
-
Ground
37
LP
O
X driver latch pulse
38
WF
O
Frame signal for X/Y driver
39
YDIS
O
Power down signal for displaying off mode
40
YD
O
Scan start signal
41
YSCL
O
Scan shift clock
42
VD7
I/O
43
VD6
I/O
44
VD5
I/O
45
VD4
I/O
VRAM data bus
46
VD3
I/O
47
VD2
I/O
48
VD1
I/O
49
VD0
I/O
50
VA15
O
51
VA14
O
52
VA13
O
53
VA12
O
54
VA11
O
VRAM address bus
55
VA10
O
56
VA9
O
57
VA8
O
58
VA7
O
59
VA6
O
60
NC
-
Not used
MKS5F: IC1
FUNCTION
DM: IC500
FUNCTION