User's Manual

3.3 Ultra ATA33/66/100 IDE Disk Drive Connector

You can attach one IDE (Integrated Device Electronics) hard disk drives to

the NOVA-7820 IDE controller.

• CN2: Primary IDE Connector

PIN Description PIN Description

1 RESET# 2 GROUND

3 DATA 7 4 DATA 8

5 DATA 6 6 DATA 9

7 DATA 5 8 DATA 10

9 DATA 4 10 DATA 11

11 DATA 3 12 DATA 12

13 DATA 2 14 DATA 13

15 DATA 1 16 DATA 14

17 DATA 0 18 DATA 15

19 GROUND 20 N/C

21 N/C 22 GROUND

23 IOW# 24 GROUND

25 IOR# 26 GROUND

27 CHRDY 28 GROUND

29 DACK 30 GROUND

31 INTERRUPT 32 GROUND

33 SA1 34 P66DET

35 SA0 36 N/C

37 HDC CS0# 38 HDC CS1#

39 HDD ACTIVE# 40 GROUND

3.4 Parallel Port

This port is usually connected to a printer. NOVA-7820 includes an on-

board parallel port, and accessed through a 26-pin flat-cable connector

CN1. Three modes: SPP, EPP and ECP are supported.

• CN1: Parallel Port Connector

PIN Description PIN Description

1 STROBE# 14 AUTO FORM FEED #

2 DATA 0 15 ERROR#

3 DATA 1 16 INITIALIZE

4 DATA 2 17 PRINTER SELECT LN#

5 DATA 3 18 GROUND

6 DATA 4 19 GROUND

7 DATA 5 20 GROUND

8 DATA 6 21 GROUND

9 DATA 7 22 GROUND

10 ACKNOWLEDGE 23 GROUND

11 BUSY 24 GROUND

12 PAPER EMPTY 25 GROUND

13 PRINTER SELECT 26 N/C