15
3.3 Parallel Port
This port is usually connected to a printer. The ROCKY-3702EV
includes an on-board parallel port accessed through a 26-pin
flat-cable connector CN4.
•
CN4 : 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
GND
19 GND
20 GND
21 GND
22 GND
23 GND
24 GND
25 GND
26 N/C
3.4 Serial
Ports
The ROCKY-3702EV offers two high speed NS16C550
compatible UARTs with Read/Receive 16 byte FIFO serial ports
(COMA/COMB).
•
CN12 : Serial Port 9-pin D-sub Connector (COMA)
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)
Содержание Rocky-3702EV
Страница 11: ...9 2 1 ROCKY 3702EV s Layout...
