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PIIX3 Datasheet(PDF) 2 Page - Intel Corporation

Part # PIIX3
Description  82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR
PDF  122 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

PIIX3 Datasheet(HTML) 2 Page - Intel Corporation

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82371FB (PIIX) AND 82371SB (PIIX3)
E
2
USBP1
USBP0
PCI
Bus
Interface
ISA
Bus
Interface
Mother
Board
Interface
Interrupt
Timers/
Counters
DMA
PCICLK
AD[31:0]
C/BE[3:0]#
FRAME#
IRDY#
TRDY#
STOP#
DEVSEL#
SERR#
PAR
IDSEL
MIRQ1
MDRQ[1:0]
MDAK[1:0]#
INTR
NMI
IRQ(15,14,11:9,7:3,1)
DACK[7:5,3:0]#
TC
REFRESH#
SD[15:0]
LA23/CS1S
IOCS16#
MEMCS16#
DD12/SBHE#
MEMR#
MEMW#
AEN
IOCHRDY
IOCHK#
SYSCLK
BALE
IOR#
IOW#
SMEMR#
SMEMW#
ZEROWS#
blkdia.drw
SPKR
FERR#
IGNNE#
X-Bus
Support
Logic
OSC
IRQ12/M
IRQ8#
Test
TESTIN# or APICREQ#
PIRQ[A:D]#
SMI#
STPCLK#
EXTSMI#
System
Power
Mgmt
PHOLD#
PHOLDA#
System
Reset
PWROK
CPURST
PCIRST# or APICACK#
RSTDRV
INIT
IDE
Interface
SA[7:0]
DD[11:0]/SA[19:8]
M
U
X
LA22/CS3S
LA21/CS1P
LA20/CS3P
LA19:17]/DA[2:0]
DIOR#
DIOW#
DDRQ[1:0]
DDAK[1:0]#
IORDY
SOE#
SDIR
DD15/PCS#
M
U
X
XDIR#
XOE#
RTCALE
BIOSCS#
RTCCS#
KBCS#
DD13
DREQ[7:5,3:0]
I/O APIC
Support
Logic
M
U
X
DD14
PCIRST#
TESTIN#
DD14
or APICCS#
Universial
Serial
Interface
USBCLK
PIIX Only
(Not On PIIX3)
MIRQ0
PIIX3 Only
(Not On PIIX)
PIIX3 Only
(Not On PIIX)
Note:
1.
IOAPIC signals are multiplexed with signals from the System Reset, Test, and IDE Interface blocks
2.
PIRQD# is an input on the PIIX and bi-directional on PIIX3.
PIIX/PIIX3 Simplified Block Diagram



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