Sis5103 System I/O & Pmu - EUROCOM 6X00 Service Manual

SiS5103 System I/O & PMU
•
Integrated bridge between PCI bus and ISA bus.
∗
Translates PCI bus cycles into ISA bus cycles.
∗
Translates ISA master or DMA cycles into PCI bus cycles.
∗
Provides PCI-to-ISA memory one Double Word Posted Write Buffer.
•
Integrated ISA bus compatible logic.
∗
ISA bus controller.
∗
ISA arbiter for ISA master, DMA devices, and refresh.
∗
Built-in two 8237 compatible DMA controllers.
∗
Built-in two 8259A compatible interrupt controllers.
∗
Built-in one 8254 timer.
•
Supports reroutibility of four PCI interrupts to any unused IRQ interrupt.
•
Supports flash ROM.
•
Built-in RTC with 242 bytes extended CMOS SRAM.
•
Built-in PCI IDE.
∗
Fully compatible with PCI local bus specification v2.0.
∗
Accommodates 8 bits, 16 bits, and 32 bits data transfer.
∗
Supports PCI burst read/write operation.
∗
Supports read ahead & posted write buffers for concurrent system operation.
∗
Controls two IDE channels and max. connects 4 IDE drives.
∗
Supports PIO mode 4 timing proposal on enhanced IDE specifications.
∗
Programmable command and recovery timing for reads and writes per channel.
∗
Auto IDE channel speed setting with software driver.
∗
Hardware and software chip disable capability.
∗
Supports power down feature.
•
Meet PCI specification buffer strength.
•
Supports CPU thermal detectio n.
•
Supports CPU throttling and clock slow down.
•
Supports software SMI and software stop clock port.
•
Supports Microsoft APM spec.
•
Supports user register 32-bit.
•
External hardware SMI request support.
∗
EXTSUSP, GPIO[3:0], PIO[6:0], UIP [2:0].
•
Supports four Power Management Mode.
∗
Local auto doze mode.
∗
Global auto doze mode.
∗
Standby mode.
∗
Suspend mode.
•
Supports programmable PMU timer.
∗
Seven sub-doze timer: 31mS/125mS/05.Sec/1Sec/1.5Sec/2Sec/3Sec.
∗
Standby timer: 4 sec
∗
Suspend time: 1 min
∼
5 min.
∼
60 min.
62