82443GX Datasheet, PDF (4/128 Pages) Intel Corporation – Intel 440GX AGPset: 82443GX Host Bridge/Controller

Intel 82443GX Simplified Block Diagram
A[31:3]#
ADS#
BPRI#
BNR#
CPURST#
DBSY#
DEFER#
HD[63:0]#
HIT#
HITM#
HLOCK#
HREQ[4:0]#
HTRDY#
DRDY#
RS[2:0]#
CSA[7:0]#
CSB[7:0]#
DQMA[7:0]
DQMB[5,1]
GCKE
SRAS[B,A]#
FENA
SCAS[B,A]#
MAA[14:0]
MAB[14,13,12#,11#,10,9#:0
#]
WEA#
WEB#
MD[63:0]
MECC[7:0]
HCLKIN
PCLKIN
GTLREF[B:A]
AGPREF
VTT[B:A]
REF5V
PCIRST#
CRESET#
BREQ0#
TESTIN#
GCLKO
GCLKIN
DCLKO
DCLKWR
Host
Interface
DRAM
Interface
Clocks,
Reset,
Test,
and
Misc.
PCI Bus
Interface
(PCI #0)
AGP
Interface
Power
Mgnt
AD[31:0]
C/BE[3:0]#
FRAME#
TRDY#
IRDY#
DEVSEL#
PAR
SERR#
PLOCK#
STOP#
PHOLD#
PHLDA#
WSC#
PREQ0#
PREQ[4:1]#
PGNT0#
PGNT[4:1]#
GAD[31:0]
GC/BE[3:0]#
GFRAME#
GIRDY#
GTRDY#
GSTOP#
GDEVSEL#
GREQ#
GGNT#
GPAR
PIPE#
SBA[7:0]
RBF#
STOP#
ST[2:0]
ADSTB_A
ADSTB_B
SBSTB
CLKRUN#
SUSTAT#
GXPWROK
GX_BLK.VSD
iv
82443GX Host Bridge Datasheet