NOVA-7895 Socket 370 Celeron
TM
& Pentium III
®
Multimedia & Dual Ethernet ,IEEE1394, Embedded Board
21
Pin Description Pin
Description
1
STROBE#
2
AUTO FORM FEED #
3 DATA
0 4 ERROR#
5 DATA
1 6 INITIALIZE
7 DATA
2 8
PRINTER
SELECT
LN#
9 DATA
3 10
GND
11 DATA
4 12
GND
13 DATA
5 14
GND
15 DATA
6 16
GND
17 DATA
7 18
GND
19 ACKNOWLEDGE 20
GND
21 BUSY 22
GND
23 PAPER
EMPTY 24
GND
25 PRINTER
SELECT 26
N/C
3.4 Serial
Ports
The NOVA-7895 is equipped with four high speed NS16C550
compatible UART’s with Read/Receive 16 byte FIFO serial ports
(COM1/COM2/COM3/COM4).
•
CN29 : Serial Port 2x5 pin header Connector (COM1)
Pin No. Description Pin No. Description
1
DCD
2
DSR
3
RXD
4
RTS
5
TXD
6
CTX
7
DTR
8
RI
9
GND
10
NC
•
CN31 : Serial Port 2x7 pin header Connector (COM2)
COM2 Support Three Mode : RS232, RS422/RS485
( For 2x7 pin header Connector )
RS232 Mode
NOVA-7895 Socket 370 Celeron
TM
& Pentium III
®
Multimedia & Dual Ethernet ,IEEE1394, Embedded Board
22
Pin No. Description Pin No. Description
1 DCD 2 DSR
3 RXD 4 RTS
5 TXD 6 CTX
7 DTR 8 RI
9 GND 10 NC
RS422 / RS485 Mode ( Option )
( For 2x7 pin header Connector )
RS422 Mode
Pin No. Description Pin No. Description
1 2
3 4
5 6
7 8
9 10
11 TX+ 12 TX-
13 RX+ 14 RX-
( For 2x7 pin header Connector )
RS485 Mode
Pin No. Description Pin No. Description
1 2
3 4
5 6
7 8
9 10
11 TX+ 12 TX-
13 14
•
CN21 : Serial Port 2x10 pin header Connector (COM3 / 4)
( For 2x10 pin header Connector )
COM3 : CN21 PIN 1 - 10
COM4 : CN21 PIN 11 – 20