User manual

13 Chapter 2
2.7 Solid State Disk
The board provides a CompactFlash card type I socket and type II for
optional kit.
2.7.1 Compact Flash (CN41)
The CompactFlash card shares a secondary IDE channel which can be
enabled/disabled via the BIOS settings.
2.8 Parallel port connector (CN19)
Normally, the parallel port is used to connect the cable to a printer. The
board includes a multi-mode (ECP/EPP) parallel port accessed via CN19
and a 26-pin flat-cable connector. You will need an adapter cable if you
use a traditional DB-25 connector. The adapter cable has a 26-pin connec-
tor on one end, and a DB-25 connector on the other.
The parallel port is designated as LPT1, and can be disabled or changed to
LPT2 or LPT3 in the system BIOS setup.
The parallel port interrupt channel is designated to be IRQ7.
You can select ECP/EPP/ECP DMA channel via BIOS setup.
2.9 Keyboard and PS/2 mouse connector (CN18)
The board provides a keyboard connector that supports both a keyboard
and a PS/2 style mouse. In most cases, especially in embedded applica-
tions, a keyboard is not used. If the keyboard is not present, the standard
PC/AT BIOS will report an error or fail during power-on self-test (POST)
after a reset. The PCM 3353’s BIOS standard setup menu allows you to
select “All, But Keyboard” under the “Halt On” selection. This allows
no-keyboard operation in embedded system applications, without the sys-
tem halting under POST.
2.10 Power connectors (CN38)
2.10.1 Main power connector, +5 V, +12 V (CN38)
Supplies main power +5V to the PCM-3353, and to devices that require
+12 V.
2.10.2 Power Reset button