Acer Extensa 390 Service Guide

Major Chips Description2-35 The chip provides two extra IRQ lines and one programmable chip select for motherboard
Plug-and-Play functions.  The interrupt lines can be routed to any of the available ISA interrupts.
The on-chip IDE controller supports two separate IDE connectors for up to four IDE devices
providing an interface for IDE hard disks and CD ROMs.  The Ultra 33 specification (that supports
the 33 MB/second transfer rate) has been implemented at this IDE controller.  The ATA bus pins
and the...

2-36Service Guide· Independent programmable level/edge triggered channels
· Counter/Timers
· 8254 compatible timers for System Timer, Refresh Request, Speaker Output Use
· Distributed DMA supported
· 7 DMA Channels can be arbitrarily programmed as distributed channel
· Serialized IRQ supported
· Quiet/Continuous mode
· Programmable (default 21) IRQ/DATA frames
· Programmable START frame pulse width
· Plug-and-Play port supported
· One programmable chip select
· Two steerable interrupt request lines
·...

Major Chips Description2-37 - Hard disk
- Floppy
- Serial ports
- Parallel port
- Keyboard
- Six programmable I/O groups
- Three programmable memory spaces
· Provides hot plugging events detection
- CRT connector
- AC power
- Docking insert
- Eject
- Setup button
- Hot key press
· Multiple external wakeup events of Standby mode
- Power button
- Cover open
- Modem ring
- RTC alarm
- EXTSW
- DRQ2
· Suspend wakeup detected
- Hot key
- Modem ring
- RTC alarm
- Cover open
- Docking insert
- Power button
- USB...

2-38Service Guide· L2 cache power down and PCI CLKRUN control logic supported
· 21 general purpose input signals, 24 general purpose output signals, 20 general purpose
input/output signals
· 16 external expandable general purpose inputs, 16 external expandable general purpose
outputs
· LCD control
· All registers readable/restorable for proper resume from Suspend state
· Built-in PCI IDE controller
· Supports Ultra 33 Synchronous DMA Mode transfers up to Mode 2 Timing (33 MB/sec)
· Supports PIO Modes up...

Major Chips Description2-39 2.2.2.2 Pin Diagram  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17 18 19 20
 A 
NCAD21AD18CBEJ2STOPJAD14AD9AD5AD0SIDED7SIDED10SIDED2
SIDED15SIDEAKJSIDECS3J PIDED6PIDED10PIDED3 NC  NC
 B 
NCAD22AD19AD16DEVSELJ AD15AD10AD6AD1PHLDJSIDED5SIDED12SIDED0SIDEIRDY SIDECS1JPIDED9PIDED11 PIDED13 PIDED2 PIDED14
 C
CBEJ3AD23AD20AD17TRDYJCBEJ1AD11AD7AD2PHLDAJ SIDED9SIDED3SIDED14SIDEIORJ SIDEA2 PIDED5 PIDED4 PIDED1 PIDED15PIDED0
 D
AD26AD25AD24PCIRSTJIRDYJ
PARAD12CBEJ0AD3
CLKRUNJ...

2-40Service Guide2.2.2.3 Numerical Pin List
Table 2-5M1533 Numerical Pin ListNo.NameTypeNo.NameTypeNo.NameTypeA1...

Major Chips Description2-41 Table 2-5M1533 Numerical Pin...

2-42Service GuideTable 2-5M1533 Numerical Pin...

Major Chips Description2-43 Table 2-5M1533 Numerical Pin ListNo.NameTypeNo.NameTypeNo.NameTypeW9MEMRJI/OE8AD8I/OY13EXTSWIW10DACKJ6OA7AD9I/OE5FRAMEJI/OW11SD11I/OB7AD10I/OH10GNDPW12SD14I/OC7AD11I/OH11GNDPW13SPLEDOD7AD12I/OH12GNDPW14XD2I/OE7AD13I/OH13GNDPW15XD6I/OA6AD14I/OH8GNDPW16SETUPJIB6AD15I/OH9GNDPW17GPI4IB4AD16I/OJ10GNDPW18GPI7IC4AD17I/OJ11GNDPW19GPI8IA3AD18I/OJ12GNDPW20---B3AD19I/OJ13GNDPY1...

2-44Service GuideTable 2-5M1533 Numerical Pin...