KVT-910DVD/920DVD/930DVD/
940DVD/960DVD
25
MICROCOMPUTER'S TERMINAL DESCRIPTION
●
GRAPHIC U-COM (IC227:X14-634X-XX) HD6417041AFI28
Pin
Name
I/O
Function
Description of Processing
1
N.C.
O
Not used
2
N.C.
O
Not used
3
N.C.
O
Not used
4
N.C.
O
Not used
5
N.C.
O
Not used
6
Vss
I
GND
7
A0
O
Address bus
8
A1
O
Address bus
9
A2
O
Address bus
10
A3
O
Address bus
11
A4
O
Address bus
12
Vcc
I
5V Power source
Connect to system micom SW5V
13
A5
O
Address bus
14
Vss
I
GND
15
A6
O
Address bus
16
A7
O
Address bus
17
A8
O
Address bus
18
A9
O
Address bus
19
A10
O
Address bus
20
A11
O
Address bus
21
A12
O
Address bus
22
A13
O
Address bus
23
A14
O
Address bus
24
A15
O
Address bus
25
A16
O
Address bus
26
Vcc
I
5V Power source
Connect to system micom SW5V
27
A17
O
Address bus
28
Vss
I
GND
29
N.C.
O
Not used
30
N.C.
O
Not used
31
RAS
O
DRAM lower address strobe
32
CASL
O
DRAM low position column address strobe
33
N.C.
O
Not used
34
CASH
O
DRAM high position column address strobe
35
Vss
I
GND
36
RDWR
O
DRAM write strobe
37
A18
O
Address bus
38
A19
O
Address bus
39
A20
O
Address bus
40
Vcc
I
5V Power source
Connect to system micom SW5V
41
A21
O
Address bus
42
Vss
I
GND