17
3.3 Parallel Port
This port is usually connected to a printer, The WAFER-7850
includes an on-board parallel port, accessed through a 26-pin
flat-cable connector CN10.Three modes – SPP,EPP and ECP –
are supported.
•
CN10 : Parallel Port Connector
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1 STROBE#
2 DATA
0
3 DATA
1
4 DATA
2
5 DATA
3
6 DATA
4
7 DATA
5
8 DATA
6
9 DATA
7
10 ACKNOWLEDGE
11 BUSY
12 PAPER
EMPTY
13
PRINTER SELECT
14
AUTO FORM FEED #
15 ERROR#
16 INITIALIZE
17 PRINTER
SELECT
LN# 18 GROUND
19 GROUND
20 GROUND
21 GROUND
22 GROUND
23 GROUND
24 GROUND
25 GROUND
26 NC
3.4 Serial Ports
The WAFER-7850 offers two high speed NS16C550 compatible
UARTs with Read/Receive 16 byte FIFO serial ports.
CN14
: COM1
CN8
: COM2
1
14
13
26
18
•
CN14 : COM1 9-pin Connector
PIN NO.
DESCRIPTION
1
DATA CARRIER DETECT (DCD)
2
RECEIVE DATA (RXD)
3
TRANSMIT DATA (TXD)
4
DATA TERMINAL READY (DTR)
5
GROUND (GND)
6
DATA SET READY (DSR)
7
REQUEST TO SEND (RTS)
8
CLEAR TO SEND (CTS)
9
RING INDICATOR (RI)
•
CN8 : COM2 10-pin Connector
PIN NO.
DESCRIPTION
1
DATA CARRIER DETECT (DCD)
2
DATA SET READY (DSR)
3
RECEIVE DATA (RXD)
4
REQUEST TO SEND (RTS)
5
TRANSMIT DATA (TXD)
6
CLEAR TO SEND (CTS)
7
DATA TERMINAL READY (DTR)
8
RING INDICATOR (RI)
9 GROUND
10 NC
3.5 Keyboard Connector
The WAFER-7850 provides 6-PIN MINI-DIN keyboard/mouse
connector.
•
CN5 : 6-pin Mini-DIN Keyboard/Mouse Connector
PIN NO.
DESCRIPTION
1 KEYBOARD
DATA
2 MOUSE
DATA
3 GROUND
4 +5V
5 KEYBOARD
CLOCK
6 MOUSE
CLOCK
1
2
9
10
