SBC82810 Pentium
®
M All-in-One Half-Size Board User’s Manual
Hardware Description
21
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
2
4
6
1
3
5
7
8
9
11
13
15
10
12
14
16
17
19
21
23
25
18
20
22
24
26
27
29
31
33
28
30
32
34
Pin Description Pin Description Pin
Description
1
GND
2
Reduce write current
3
GND
4
No connector
5
GND
6
No connector
7
GND
8
Index#
9
GND
10
Motor enable A#
11
GND
12
Drive select B#
13
GND
14
Drive select A#
15
GND
16
Motor enable B#
17
GND
18
Direction#
19
GND
20
STEP#
21
GND
22
Write data#
23
GND
24
Write gate#
25
GND
26
Track 0 #
27
GND
28
Write protect#
29
GND
30
Read data#
31
GND
32
Side 1 select#
33
GND
34
Disk change#
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)