82443ZX Datasheet, PDF (4/116 Pages) Intel Corporation – Intel® 440ZX AGPset: Host Bridge/Controller

Intel 82443ZX 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]#
RASA[5:0]/CSA[5:0]#
RASB[5:0]/CSB[5:0]#
CKE[3:2]/CSA[7:6]#
CKE[5:4]/CSB[7:6]#
CASA[7:0]/DQMA[7:0]
CASB[5,1]/DQMB[5,1]
GCKE/CKE1
SRAS[B,A]#
CKE0/FENA
SCAS[B,A]#
MAA[13:0]
MAB[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#
PREQ[3:0]#
PGNT[3:0]#
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#
BXPWROK
BX_BLK.VSD
iv
82443ZX Host Bridge Datasheet