Acer 740 Laptop User Manual


 
Chapter 1 21
Parallel Port
Item Specification
Parallel port controller SMSC LPC47N267
Number of parallel port 1
Location Rear side
Connector type 25-pin D-type connector, in female type
Parallel port function control Enable/Disable by BIOS Setup
Supports ECP/EPP Yes (set by BIOS setup)
Optional ECP DMA channel
(in BIOS Setup)
DMA channel 1 and 3
Optional parallel port I/O address
(in BIOS Setup)
3BCh, 278h, 378h
Optional parallel port IRQ
(in BIOS Setup)
IRQ7, IRQ5
Serial Port
Item Specification
Serial port controller SMSC LPC47N267
Number of serial port 1
Supports 16550 UART Yes
Connector type 9-pin D-type connector, in male type
Location Rear side
Serial port function control Enable/Disable by BIOS Setup
Optional serial port (in BIOS Setup) 3F8h, 2F8h, 3E8h, 2E8h
Optional serial port IRQ (in BIOS Setup) IRQ4, IRQ11
USB Port
Item Specification
USB Compliancy Level 1.1
OHCI USB 1.1
Number of USB port 2
Location Rear side
Serial port function control Enable/Disable by BIOS Setup
IrDA Port
Item Specification
IrDA FIR port controller SMSC LPC47N267
Number of IrDA FIR port 1
Location Left side
IrDA FIR port function control Enable/disable by BIOS Setup
IrDA FIR port (in BIOS Setup) 2F8
IrDA FIR port IRQ (in BIOS Setup) IRQ3
ECP DMA channel
(in BIOS Setup)
DMA channel 3
Optional IrDA FIR port DRQ (in BIOS Setup) Not available