82378ZB Просмотр технического описания (PDF) - Intel

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производитель

82378ZB

82378ZB SYSTEM I/O (SIO) AND 82379AB SYSTEM I/O APIC (SIO.A)

Intel 

82378ZB (SIO) AND 82379AB (SIO.A)

E

PCICLK

PCIRST#

AD[31:0]

C/BE#[3:0]

FRAME#

TRDY#

IRDY#

STOP#

LOCK#

DEVSEL#

SERR#

PAR

IDSEL

MEMCS#

CPUREQ#

CPUGNT#

REQ0#/SIOGNT#

GNT0#/SIOREQ#

REQ1#

GNT1#/RESUME#

REQ[3:2]#

GNT[3:2]#

MEMREQ#

MEMACK#

FLSHREQ#

IRQ8#

IRQ12/M

INT

NMI

IRQ[15,14,

11:9,7:3,1]

PIRQ[3:0]#

TEST

SPKR/TESTO

SMI#

STPCLK#

EXTSMI#

INIT

PCI

Bus

Interface

Data Buffers

PCI

ISA

Decode Decode

ISA

Bus

Interface

PCI

Arbiter

Interrupt

Test

CPU

Interface

DMA

Timers/

Counters

BIOS Timer

Utility

Bus

Support

Logic

I/O

APIC

(82379AB

O n ly)

SD[15:0]

SA[19:0]

LA[23:17]

IOCS16#

MEMCS16#

SBHE#

MASTER#

MEMR#

MEMW#

AEN

IOCHRDY

IOCHK#

SYSCLK

BALE

IOR#

IOW#

SMEMR#

SMEMW#

ZEROWS#

RSTDRV

OSC

DREQ[7:5,3:0]

DA CK[7:5,3:0]#

EOP(82378ZB)

TC (82379AB)

REFRESH#

SPKR/TESTO

UBUSTR

UBUSOE#

E C S AD D R[2:0]

ECSEN#

DSKCHG

ALT_RST#

ALT_A20

FERR#/IRQ13

IGNNE#

APICCLK

APIC D[1:0]

SIO_A_BK.DRW

Note: I/O APIC signals are only on the 82379AB. Also, SPKR/TESTO are only multiplexed on the 82379AB and are separate

signals on the 82378ZB. The MASTER# signal is only on the 82378ZB.

82378ZB SIO and 82379AB SIO.A Component Block Diagram

2

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