Acer Aspire SA90 Service Manual page 19

Parallel Port
Item
Parallel port controller
Parallel port controller resident bus
Number of parallel ports
Support ECP/EPP
Connector type
Parallel port function control
Optional ECP DMA channel
(in BIOS Setup)
Optional parallel port I/O address
(via BIOS Setup)
Optional parallel port IRQ
(via BIOS Setup)
Serial Port
Item
Serial port controller
Serial port controller resident bus
Number of serial port
16550 UART support
Connector type
Optional serial port I/O address
(via BIOS Setup)
Optional serial port IRQ
(via BIOS Setup)
USB Port
Item
Universal HCI
USB Class
USB Connectors Quantity
Environmental Requirements
Item
Temperature
Operating
Non-operating
Humidity
Chapter 1
ITE8718Ex
ISA bus
1
SPP / Bi-directional / ECP / EPP
25-pin D-type female connector
Enable/disable by BIOS Setup
DMA channel 1
DMA channel 3
378h
278h
IRQ5
IRQ7
ITE8718Ex
ISA bus
2
Yes
9-pin D-type female connector
COM1: 2F8h, 3E8h, 2E8h
COM2: 3E8h, 3F8h, 2F8h
COM1: IRQ 3, and 4
COM2: IRQ 4, and 3
USB 2.0
Support legacy keyboard for legacy mode
4 for rear I/O ports, 3 on-board headers
+5°C ~ +35°C
-20 ~ +60°C (Storage package)
Specification
Specification
Specification
Specifications
13