User`s manual

SBC86822 Series All-In-One Mini ITX Board User’s Manual
Jumpers and Connectors
34
2.4.11 Enhanced IDE Interface Connector (CN20)
There are three built-in IDE channels, one parallel ATA-100 and two
serial ATA-150, which support up to four IDE devices. CN20 is a 40-pin
IDE interface connector for standard 3.5” IDE device.
Pin Signal Pin Signal Pin Signal
1 Reset # 2 GND 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 GND 20 No connector 21 No connector
22 GND 23 IOW # 24 GND
25 IOR # 26 GND 27 IOCHRDY
28 No connector 29 No connector 30 GND-Default
31 Interrupt 32 No connector 33 SA1
34 No connector 35 SA0 36 SA2
37 HDC CS0 # 38 HDC CSI # 39 HDD Active #
40 GND
CN20
2.4.12 Parallel Port Interface Connector (CN21)
The board has one one 26-pin header connector CN21 for onboard
parallel port. The onboard PRN is a multi-mode parallel port that
supports:
1. Standard mode:
IBM PC/XT, PC/AT and PS/2™ compatible with bi-directional
parallel port
2. Enhanced mode:
Enhance parallel port (EPP) compatible with EPP 1.7 and EPP 1.9
(IEEE 1284 compliant)
3. High speed mode:
Microsoft and Hewlett Packard extended capabilities port (ECP)
IEEE 1284 compliant