Sharp SF-2220, Service Manual

Page: 150 / 163

(3) I/O (IC8) CXD1095Q
1
General
I/O converts data (command) from the CPU into control signals.
The CXD1095Q is a general-purpose interface element, and has 4.5
sets of 8-bit I/O ports to allow setting of input and output operations of
parallel data by the program or the hardware.
2
Features
8-bit parallel I/O port x 4.5 ports
3 Pin arrangement
32
20
19
0
52
64
51 33
SONY
JAPAN
CXD1095Q
Pin
No.
Pin name I/O
1 N.C —
2 N.C —
3 PB1 I/O
4 PB2 I/O
5 PB3 I/O
6 PB4 I/O
7 PB5 I/O
8 PB6 I/O
9 PB7 I/O
10 Vss —
11 PC0 I/O
12 PC1 I/O
13 PC2 I/O
14 PC3 I/O
15 PC4 I/O
16 PC5 I/O
Pin
No.
Pin name I/O
17 PC6 I/O
18 PC7 I/O
19 N.C —
20 PD0 I/O
21 PD1 I/O
22 PD2 I/O
23 PD3 I/O
24 PD4 I/O
25 Vss —
26 VDD —
27 PD5 I/O
28 PD6 I/O
29 PD7 I/O
30 D0 I/O
31 D1 I/O
32 D2 I/O
Pin
No.
Pin name I/O
33 N.C —
34 N.C —
35 D3 I/O
36 D4 I/O
37 D5 I/O
38 D6 I/O
39 D7 I/O
40 CLR I
41 ODEN I
42 Vss —
43 WR I
44 RD I
45 CS I
46 A0 I
47 A1 I
48 A2 I
Pin
No.
Pin name I/O
49 PE0 I/O
50 PE1 I/O
51 N.C —
52 PE2 I/O
53 PE3 I/O
54 PA0 I/O
55 PA1 I/O
56 PA2 I/O
57 Vss —
58 VDD —
59 PA3 I/O
60 PA4 I/O
61 PA5 I/O
62 PA6 I/O
63 PA7 I/O
64 PB0 I/O
12 – 8
MC-Service