Acer TravelMate -550 Service Manual page 35

Parallel Port
Parallel port function control
Supports ECP/EPP/Bi-directional (PS/2
compatible)
Optional ECP DMA channel (in BIOS Setup)
Optional parallel port I/O address (in BIOS
Setup)
Optional parallel port IRQ (in BIOS Setup)
USB Port
USB Compliancy Level
OHCI
Number of USB port
Location
Serial port function control
PCMCIA Port
Item
PCMCIA controller
Supports card type
Number of slots
Access location
Supports ZV (Zoomed Video) port
Supports 32 bit CardBus
System Board Major Chips
Item
System core logic
Super I/O controller
Audio controller
Video controller
Hard disk drive controller
Keyboard controller
RTC
Keyboard
Keyboard controller
Keyboard vendor & model name
Total number of keypads
Chapter 1
Item
Item
OZ6933
Type-III/II
One type-III or Two type-II
Left side
No ZV support
Yes (IRQ11)
VIA PN133/VT686B
Build in VT686B
Crystal 4299 AC 97 codes
VIA Twister-T
VT686B
87570
VT686B
Item
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.
Yes (set by BIOS setup)
Note: When Mode is selected as EPP mode, "3BCh" will not be
available.
DMA channel 1 and 3
3BCh, 278h, 378h
IRQ7, IRQ5
1.1
USB 1.1
2
Right panel
Enable/Disable by BIOS Setup
Specification
Controller
NS 87570
Chicony MPO 130
87 keys with 101/102 key emulation
Specification
Specification
Specification
27