82371AB Datasheet, PDF (3/284 Pages) Intel Corporation – PCI-TO-ISA / IDE XCELERATOR PIIX4

E
82371AB (PIIX4)
PCICLK
AD[31:0]
C/BE[3:0]#
FRAME#
TRDY#
IRDY#
STOP#
DEVSEL#
SERR#
PAR
IDSEL
PHOLD#
PHLKA#
CLKRUN#
RCIN#
PWROK
CPURST
RSTDRV
INIT
PCIRST#
IRQ0//GPO14
IRQ8#/GPI6
IRQ12/M
INTR
NMI
IRQ[15,14,11:9,7:3,1]
SERIRQ/GPI7
PRIQ[A:C]
PIRQD
IRQ9OUT#/GPO29
SMI#
STPCLK#
EXTSMI#
SLP#
SUSCLK
BATLOW#/GPI9
THRM#/GPI8
LID//GPI10
RI#/GPI12
RSMRST#
PWRBTN#
SUSA#
SUSB#/GPO15
SUSC#/GPO16
ZZ/GPO19
PCIREQ[D:A]#
SPKR
OSC
DREQ[7:5,3:0]
DACK[7:5,3:0]#
TC
REFRESH#
REQ[A:C]#/GPI[2:4]
GNT[A:C]#/GPO[9:11]
CLK48
USBPO±
USBP1±
OC[1:0]#
CONFIG[2:1]
TEST#
PCI Bus
Interface
ISA Bus
Interface
System
Reset
Interrupt
Primary
IDE
Interface
System
Power
Mgmt.
Secondary
IDE
Interface
X-Bus
Support
Logic
Timers/
Counters
DMA
Universal
Serial
Bus
Test
I/O APIC
Support
Logic
RTC
SMBUS
General
Purpose
Inputs
and
Outputs
SD[15:0]
IOCS16#
MEMCS16#
MEMR#
MEMW#
AEN
IOCHRDY
IOCHK#/GPI0
SYSCLK
BALE
IOR#
IOW#
SMEMR#
SMEMW#
ZEROWS#
SA[19:0]
LA[23:17]/GPO[7:1]
SBHE#
PDCS1#
PDCS3#
PDA[2:0]
PDD[15:0]
PDDACK#
PDDREQ
PDIOIR#
PDIOW#
PIORDY
SDCS1#
SDCS3#
SDA[2:0]
SDD[15:0]
SDDACK#
SDDREQ
SDIOR#
SDIOW#
SIORDY
PCS[1:0]#
XDIR#/GPO22
XOE#/GPO23
RTCALE/GPO25
FERR#
IGNNE#
BIOSCS#
RTCCS#/GPO24
KBCCS#/GPO26
A20M#
A20GATE
MCCS#
APICCS#/GPO13
APICACK#/GPO12
APCIREQ#/GPI5
RTCX[2:1]
SMBALERT#
SMBCLK
SMBDATA
GPI[21:13,1]
GPI[12:2,0] (Multiplexed)
GPO[30,28:27,8,0]
GPO[29,26:9,7:1] (Multiplexed)
Simplified Block Diagram
PRELIMINARY
Pix4_blk
3
4/9/97 2:23 PM PIIX4aDS
INTEL CONFIDENTIAL
(until publication date)