J18: PRINT
Pin #
Signal Name Pin # Signal Name
1
STB-
3
PD1
5
PD3
7
PD5
9
PD7
11
BUSY
13
SLCT
15
ERR-
17
SLIN-
19
GND
21
GND
23
GND
25
GND
J19: COM4
Pin #
Signal Name Pin # Signal Name
1
DCD4
3
TXD4
5
GND
7
RTS4
9
RI4
Vortex86SX-6154
2
PD0
4
PD2
6
PD4
8
PD6
10
ACK-
12
PE
14
AFD-
16
INIT-
18
GND
20
GND
22
GND
24
GND
2
RXD4
4
DTR4
6
DSR4
8
CTS4
10
NC
Vortex86SX™ PC/104 CPU Module
15