Floppy Disk Controller; Parallel Port Interface - AXIOMTEK SBC82810 Series User Manual

SBC82810 Pentium
3.8

Floppy Disk Controller

The SBC82810 Series provides a 26-pin pin box-header
connector, CN8 for support of a single floppy drives. The floppy
drive could be any one of the following types: 3.5" 720KB or
1.44MB/2.88MB.
CN8: FDD Connector Pin Assignment
25 23
33 31 29 27
34
32 30
28 26 24
Pin Description
GND
1
No connector
4
GND
7
Motor enable A#
10
GND
13
Motor enable B#
16
GND
19
Write data#
22
GND
25
Write protect#
28
GND
31
Disk change#
34
3.9

Parallel Port Interface

The SBC82810 Series has one onboard parallel port, LPT1.
LPT1 has one 26-pin header connector. The onboard PRN of
SBC82810 Series is a multi-mode parallel port supporting:
Standard mode:
IBM PC/XT, PC/AT and PS/2™ compatible with bi-
directional parallel port
Enhanced mode:
Enhance parallel port (EPP) compatible with EPP 1.7 and
EPP 1.9 (IEEE 1284 compliant)
Hardware Description
®
M All-in-One Half-Size Board User's Manual
21 19 17 15 13 11
12
22 20 18 16 14
Pin Description
Reduce write current
2
GND
5
Index#
8
GND
11
Drive select A#
14
GND
17
STEP#
20
GND
23
Track 0 #
26
GND
29
Side 1 select#
32
9 7 5 3 1
10 8 6 4 2
Pin Description
GND
3
No connector
6
GND
9
Drive select B#
12
GND
15
Direction#
18
GND
21
Write gate#
24
GND
27
Read data#
30
GND
33
21