PB22/PB23 Overview

Battery

3.6V DC Lithium (removable)

BIOS

128 KB - Phoenix BIOS V1.01.08

Bus Architecture

ISA based system bus

Cache

8 KB Internal (Level 1) Cache Write ThroughExternal (Level 2)

CPU

Intel 486 processor

Interfaces

1 X DB-25F Parallel 2 X RS232,DB-9M Serial 15-pin F VGA PS/2 Mouse PS/2 Keyboard 34-pin on board FDD 40-pin IDE HDD

IRQ Availability

00 Timer Click 01 Keyboard 02 Second 8259A 03 COM2 or COM4 04 COM1 or COM3 05 LPT2 or Sound Card (if present) 06 Floppy Disk 07 LPT1 08 Real-Time Clock 09 Redirected IRQ2 10 Sound Card (if present) 11 (reserved) 12 PS/2 Mouse 13 Math Co-processor (if present) 14 Fixed Disk Controller 15 Secondary Fixed Disk Controller (if present)

Network Certification

N/A

RAM

4 MB Standard on Motherboard 32 MB Maximum on Motherboard 4 GB Maximum addressable

Speaker

Piezoelectric soldered on motherboard

UART Compatability

Compatible with the 16C450 UART

Video

Built in Oak Extended VGA