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21152 Datasheet(PDF) 28 Page - Intel Corporation

Part # 21152
Description  PCI-to-PCI Bridge
PDF  148 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

21152 Datasheet(HTML) 28 Page - Intel Corporation

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3-2
21152 PCI-to-PCI Bridge Preliminary Datasheet
Pin Assignment
3.1
Pin Location List (Numeric)
Table 3-1 provides the signal type abbreviations used in Table 3-2. Table 3-2 lists the 21152 pins in
numeric order, showing the location, signal name, and signal type of each pin.
Table 3-1.
Signal Type Abbreviations
Signal Type
Description
I
Standard input only.
O
Standard output only.
PPower.
TS
Tristate bidirectional.
STS
Sustained tristate. Active low signal must be pulled high for one cycle when
deasserting.
OD
Standard open drain.
Table 3-2.
Pin Location List (Numeric) (Sheet 1 of 3)
PQFP
Location
Signal Name
Type
PQFP
Location
Signal Name
Type
1
vss
P24
s_ad<23>
TS
2
s_par
TS
25
s_cbe_l<3>
TS
3
s_serr_l
I26
s_ad<24>
TS
4
s_perr_l
STS
27
vss
P
5
s_lock_l
STS
28
s_ad<25>
TS
6
s_stop_l
STS
29
s_ad<26>
TS
7
s_devsel_l
STS
30
vdd
P
8
vdd
P31
s_ad<27>
TS
9
s_trdy_l
STS
32
s_ad<28>
TS
10
s_irdy_l
STS
33
s_ad<29>
TS
11
s_frame_l
STS
34
vss
P
12
vss
P35
s_ad<30>
TS
13
s_cbe_l<2>
TS
36
s_ad<31>
TS
14
s_ad<16>
TS
37
s_req_l<0>
I
15
vdd
P38
s_req_l<1>
I
16
s_ad<17>
TS
39
s_req_l<2>
I
17
s_ad<18>
TS
40
vdd
P
18
s_ad<19>
TS
41
vss
P
19
vss
P42
s_req_l<3>
I
20
s_ad<20>
TS
43
s_gnt_l<0>
TS
21
s_ad<21>
TS
44
s_gnt_l<1>
TS
22
s_ad<22>
TS
45
s_gnt_l<2>
TS
23
vdd
P46
vdd
P



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