Acer Aspire T310 Service Manual page 25

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
Memory Address Map
Address
000000 - 07FFFF
080000 - 09FFFF
0A0000 - 0BFFFF
0C0000 - 0C7FFF
0C8000 - 0DFFFF
0E0000 - 0EFFFF
12
ITE8705
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
ITE8705
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
Size
512KBytes
128KBytes
128KBytes
32KBytes
96Kbytes
64Kbytes
Specification
Specification
Specification
Function
Host Memory
Host/PCI Memory
PCI/ISA Video Buffer Memory
Video BIOS Memory
ISA Card BIOS & Buffer Memory
BIOS Extension Memory
Setup and Post Memory
PCI Development BIOS
Chapter 1