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