Acer 420 User Manual
Page 36
28
Chapter 1
Connector type
25-pin D-type connector, in female type
Parallel port function control
Enable/Disable/Auto (BIOS or operating system chooses
configuration) by BIOS Setup
Note: Depending on your operating system, disabling an unused
device may help free system resources for other devices.
Supports ECP/EPP/Bi-directional (PS/2
compatible)
Yes (set by BIOS setup)
Note: When Mode is selected as EPP mode, “3BCh” will not be
available.
Optional ECP DMA channel (in BIOS Setup)
DMA channel 1
Optional parallel port I/O address (in BIOS
Setup)
378h, 278h
Optional parallel port IRQ (in BIOS Setup)
IRQ7, IRQ5
USB Port
Item
Specification
USB Compliancy Level
1.1
OHCI
USB 1.1
Number of USB port
2
Location Right
side
Serial port function control
Enable/Disable by BIOS Setup
PCMCIA Port
Item
Specification
PCMCIA controller
OZ6912 CardBus controller
Supports card type
Type II
Number of slots
One type-II
Access location
Right panel
Supports ZV (Zoomed Video) port
No ZV support
Supports 32 bit CardBus
Yes (IRQ11)
System Board Major Chips
Item
Controller
System core logic
Brookdale MP+ICH3-M
Super I/O controller
SMsC 47N227, LPC interface
Audio controller
Realtek ALC202 Codec
Video controller
ATI M7-C
Hard disk drive controller
ICH3-M
Keyboard controller
NS 87591
RTC
ICH3-M
Keyboard
Item
Specification
Keyboard controller
NS 87591
Keyboard vendor & model name
Acer proprietary keyboard w/o launch button embeded
Total number of keypads
87/88/90 keys with 101/102 key emulation
Parallel Port
Item
Specification
SG_TM420_Ch1.fm Page 28 Thursday, September 26, 2002 9:23 AM