16
AlphaPC 164 Connector Pinouts
Table 11 COM1/COM2 Serial Line Connector Pinouts (J4)
COM1 Pin
(Top)
COM1 Signal
COM2 Pin
(Bottom)
COM2 Signal
1
DCD1
1
DCD2
2
RxD1
2
RxD2
3
TxD1
3
TxD2
4
DTR1
4
DTR2
5
SG1
5
SG2
6
DSR1
6
DSR2
7
RTS1
7
RTS2
8
CTS1
8
CTS2
9
RI1
9
RI2
Table 12 Keyboard/Mouse Connector Pinouts (J15)
Keyboard Pin
(Top)
Keyboard Signal
Mouse Pin
(Bottom)
Mouse Signal
1
KBDATA
1
MSDATA
2
NC
2
NC
3
Gnd
3
Gnd
4
Vdd
4
Vdd
5
KBCLK
5
MSCLK
6
NC
6
NC
Table 13 SROM Test Data Input Connector Pinouts (J32)
Pin
Signal
Name
1
NC
—
2
SROM_CLK_L
Clock out
3
Gnd
—
4
NC
—
5
TEST_SROM_D_L
SROM serial data in
6
NC
—
