24
31 D1 32 D2
33 WP 34
GROUND
35 GROUND 36 CD1#
37 D11 38 D12
39 D13 40 D14
41 D15 42
CE2#
43 VS1# 44
IORD#
45 IOWR# 46 A17
47 A18 48 A19
49 A20 50 A21
51 VCC 52 VCC
53 A22 54 A23
55 A24 56 A25
57 VS2# 58 RESET
59 WAIT# 60
INPACK#
61 REG# 62 BVD2
63 BVD1 64 D8
65 D9 66
D10
67 CD2# 68
GROUND
69 GROUND 70 GROUND
3.18 Digital I/O
One characteristic of digital circuit is its fast response to high or
low signal. This kind of response is highly needed for harsh and
critical industrial operating environment. That’s why we design
4-bit digital inputs and 4-bit digital outputs on the NOVA-7800.
Digital Input and Output, generally, are control signals. You can
use these signals to control external devices that needs On/Off
circuit or TTL devices. We provide "BIOS Call " for DIO's reading.
READ WRITE
Bit0 DIN0 Bit0 DO0
Bit1 DIN1 Bit1 DO1
Bit2 DIN2 Bit2 DO2
Bit3 DIN3 Bit3 DO3
