82443BX Datasheet, PDF (124/132 Pages) Intel Corporation – Host Bridge/Controller

Pinout and Package Information
Figure 5-1. 82443BX Pinout (Top View–left side)
1
2
3
4
5
6
7
8
9
10
11
12
13
A
VSS
AD20 PCIRST# AD25
AD29
PREQ0# HD56#
HD62#
HD55#
HD54#
HD49#
HD47#
HD40#
B
VCC
PCLKIN
AD22
AD27
AD28
PHOLD# HD50#
HD61#
HD63#
HD53#
HD48#
HD42#
HD36#
C
AD19
REFVCC
AD21
C/BE3#
VSS
AD31
PREQ1# HD52#
VSS
HD60#
HD59#
HD51#
HD44#
D
AD16
AD18
AD17
AD23
AD26
PHLDA# PGNT1# PREQ3# HD58# PREQ4# HD46#
HD41#
HD39#
E
IRDY# FRAME#
VSS
C/BE2#
AD24
AD30
PGNT0# PGNT3# PGNT4# PGNT2# HD57#
VSS
HD45#
F
SERR# PLOCK# DEVSEL# STOP#
TRDY#
VSS
VCC
VSS
VCC
PREQ2#
G
AD13
AD14
C/BE1#
AD15
PAR
VCC
H
AD8
AD7
AD10
AD12
AD11
VSS
J
AD5
AD6
VSS
C/BE0#
AD9
VCC
K
SBA0
AD1
AD3
AD2
AD4
AD0
L
ST2
ST1
GGNT#
ST0
GREQ#
VCC
VSS
VCC
M
SBA2
SBA1
PIPE#
RBF#
VSS
VSS
VCC
VSS
N
VSS
SBA3
SBSTB AGPREF GCLKIN
VCC
VSS
VSS
P
VCC
SBA4
SBA6
SBA5
GCLKO
VCC
VSS
VSS
R
SBA7
GAD31
GAD29
GAD30
VSS
VSS
VCC
VSS
T
GAD27
GAD26
GAD24
GAD25 ADSTB_B
VCC
VSS
VCC
U
GAD23 GC/BE3# GAD22
GAD21
GAD19
GAD28
V
GAD20
GAD17
VSS
GC/BE2# GIRDY#
VCC
W
GAD16
GAD18 GFRAME# GTRDY# GDEVSEL# VSS
Y GSTOP# GPAR
GAD15 GC/BE1# GAD14
VCC
AA GAD13
GAD12
GAD10
GAD11
GAD9
VSS
VCC
VSS
VCC
MECC1
AB GAD8 GC/BE0#
VSS
GAD7
GAD0
MD34
MD5
MD8
MD9
MD12
MD46
VSS
SCASB#
AC GAD6 ADSTB_A GAD5 CLKRUN# MD32
MD35
MD6
MD39
MD10
MD13
MD47
WEB#
DQMA1
AD GAD4
GAD3
GAD2 SUSTAT#
VSS
MD3
MD37
MD40
VSS
MD44
MD15
MECC5 DQMA0
AE VCC
GAD1
WSC#
MD1
MD33
MD4
MD38
MD42
MD11
MD45
MECC0
WEA#
DQMB1
AF
VSS
VCC BXPWROK MD0
MD2
MD36
MD7
MD41
MD43
MD14
MECC4 SCASA#
VSS
NOTES:
1. The following signals are multiplexed. See the following Alphabetical pin list for details.
a. CSA[5:0]# is multiplexed with RASA[5:0]#; CSB[5:0]# is multiplexed with RASB[5:0]#
b. CKE[3:2] is multiplexed with CSA[7:6]#; CKE[5:4] is multiplexed with CSB[7:6]#; CKE1 is multiplexed with
GCKE; CKE0 is multiplexed with FENA
c. DQMA[7:0] is multiplexed with CASA[7:0]#; DQMB[5,1] is multiplexed with CASB[5,1]#
5-2
82443BX Host Bridge Datasheet