PSR-270
12
HD63B05V0F07P (XR951A00) CPU
PIN
NO.
NAME
I/O
FUNCTION
PIN
NO.
NAME
I/O
FUNCTION
1
/RES
I
Reset
21
C7
I/O
2
/INT
I
Interrupt request
22
C6
I/O
3
NUM
I
Non-maskable interrupt
23
C5
I/O
4
A7
I/O
24
C4
I/O
Port C
5
A6
I/O
25
C3
I/O
6
A5
I/O
26
C2
I/O
7
A4
I/O
Port A
27
C1
I/O
8
A3
I/O
28
C0
I/O
9
A2
I/O
29
D0
I/O
10
A1
I/O
30
D1
I/O
Port D
11
A0
I/O
31
D2
I/O
12
B0
I/O
32
D3/TX
O
(Serial data output)
13
B1
I/O
33
D4/RX
I
(Serial data input)
14
B2
I/O
34
D5//CK
O
(Clock for serial operation)
15
B3
I/O
Port B
35
D6//INT2
I
(Interrupt request 2)
16
B4
I/O
36
/STBY
I
(Standby mode signal)
17
B5
I/O
37
TIMER
I
Timer
18
B6
I/O
38
XTAL
O
Clock
19
B7
I/O
39
EXTAL
I
20
VSS
Ground
40
VCC
Power supply
KS0076BQ-00 (XR793A00) LCD DRIVER
KS0066U-10B (XV226A00) LCD DRIVER
PIN
NO.
NAME
I/O
FUNCTION
PIN
NO.
NAME
I/O
FUNCTION
1
S22
O
41
DB2
I/O
2
S21
O
42
DB3
I/O
3
S20
O
43
DB4
I/O
Data interface
4
S19
O
44
DB5
I/O
5
S18
O
45
DB6
I/O
6
S17
O
46
DB7
I/O
7
S16
O
47
C1
O
8
S15
O
48
C2
O
9
S14
O
49
C3
O
10
S13
O
50
C4
O
11
S12
O
Segment signal output for LCD
51
C5
O
12
S11
O
driving
52
C6
O
13
S10
O
53
C7
O
14
S9
O
54
C8
O
Common signal output for LCD
15
S8
O
55
C9
O
driving
16
S7
O
56
C10
O
17
S6
O
57
C11
O
18
S5
O
58
C12
O
19
S4
O
59
C13
O
20
S3
O
60
C14
O
21
S2
O
61
C15
O
22
S1
O
62
C16
O
23
Vss
Ground
63
S40
O
24
OSC1
I
Oscillator
64
S39
O
25
OSC2
O
Oscillator
65
S38
O
26
V1
66
S37
O
27
V2
67
S36
O
28
V3
Power supply
68
S35
O
29
V4
69
S34
O
30
V5
70
S33
O
31
CLK1
O
Data latch clock
71
S32
O
Segment signal output for LCD
32
CLK2
O
Data shift clock
72
S31
O
driving
33
Vdd
Power supply (+5 V)
73
S30
O
34
M
O
Altamated signal for LCD driver outout
74
S29
O
35
D
O
Display data interface
75
S28
O
36
RS
I
76
S27
O
37
R/W
I
Read/write
77
S26
O
38
E
I
Enable
78
S25
O
39
DB0
I/O
Data interface
79
S24
O
40
DB1
I/O
Data interface
80
S23
O
Summary of Contents for PortaTone PSR-270
Page 6: ...PSR 270 6 28CA1 8813220 ...
Page 14: ...PSR 270 14 ...
Page 24: ...PSR 270 2 ...
Page 33: ...PSR 270 C2 Note See parts list for details of circuit board component parts ...
