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PIIX4 is PCI
device #8
This circuit is to prevent IOAPIC
from being powered by IRQ#8
when in suspend and power
is not applied to device.
Note: U14, C203,C215, C210 , R50
and R51 are not popula ted
THIS DRAWING CONTAINS INFORMATION WHICH HAS NOT
BEEN VERIFIED FOR MANUFACTURING AS AN END USER
PRODUCT. INTEL IS NOT RESPONSIBLE FOR THE
MISUSE OF THIS INFORMATION.
Place near PIIX4
{Doc}
D
PIIX4 Part 1
C
13 22Thursday, February 25, 1999
Title
Size Document Number Rev
Date: Sheet of
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31
PDD0
PDD1
PDD2
PDD3
PDD4
PDD5
PDD6
PDD7
PDD8
PDD9
PDD10
PDD11
PDD12
PDD13
PDD14
PDD15
SDD0
SDD1
SDD2
SDD3
SDD4
SDD5
SDD6
SDD7
SDD8
SDD9
SDD10
SDD11
SDD12
SDD13
SDD15
SDD14
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
LA17
LA18
LA19
LA20
LA21
LA22
LA23
SA4
SA0
SA12
SA6
SA9
SA0
SA18
SA5
SA8
SA11
SA17
SA16
SA7
SA19
SA10
SA4
SA3
SA15
SA2
SA14
SA13
SA1
SA1
MEMR#
MEMW#
RSTDRV
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
XD0
XD1
XD2
XD3
XD4
XD5
XD6
XD7
IRQ8_Buf
I13R
I13R
I21R
I22R
I21R
I22R
R_AD18
AD18
-C/BE0
-C/BE1
-C/BE2
-C/BE3
RSTDRV
IRQ8_Buf
RSTDRV
AD[31:0]3,4,10,11
-PREQ04,9,10
-PREQ14,9,10
-PREQ24,9,11
-PREQ33,4,9
PDD[15:0]15
SDD[15:0] 15
SDA015
SDA115
SDA215
PDDACK#15
SDDACK#15
PDREQ15
SDREQ15
PDIOR#15
PDIOW#15
PIORDY15
SDIOR#15
SDIOW#15
SIORDY15
PDA015
PDA115
PDA215
SDCS3# 15
PDCS3# 15
SDCS1# 15
PDCS1# 15
SA[19:0] 9,16,18,20
SD[15:0] 9,16,18,20
LA[23:17] 9,18
MEMCS16# 9,18
MEMR# 9,18,20
MEMW# 9,18,20
SMEMR# 9,18
SMEMW# 9,18
SYSCLK 18
BALE 9,18
IOCHK# 9,18
REFRESH# 9,18
IOCS16# 9,18
ZEROWS# 9,18
SBHE# 9,18
RSTDRV 16,18
IOR# 9,16,18
IOW# 9,16,18,20
IOCHRDY 9,16,18
AEN 16,18,20
APICCS#9,14
APICREQ#14
APICACK1#14
WSC#4
PCLKAPIC8
APICD0 4,9
APICD1 4,9
APICCLK0 8
XOE#14
XDIR#14
XD[7:0] 20
PIRQA# 3,9,10,11,14
PIRQB# 3,9,10,11,12,14
PIRQC# 3,9,10,11,12,14
PIRQD# 3,9,10,11,14
IRQ15 9,14,15,16,18
IRQ12 9,14,16,18
IRQ11 9,14,18
IRQ10 9,14,16,18
IRQ9 9,14,18
IRQ7 9,14,16,18
IRQ6 9,14,16,18
IRQ5 9,14,16,18
IRQ4 9,14,16,18
IRQ0 14
IRQ1 9,14,16
INTR 4,9,14
IRQ3 9,14,16,18
IRQ14 9,14,15,16,18
IRQ9OUT# 14
CLKRUN#3,4
-DEVSEL3,4,9,10,11
-FRAME3,4,9,10,11
-IRDY3,4,9,10,11
PAR3,4,9,10,11
-PHOLDA4,9
-SERR3,4,9,10,11
-STOP3,4,9,10,11
-TRDY3,4,9,10,11
-C/BE[3:0]3,4,10,11
RSTDRV# 15
IRQ#814
PX4_SMI# 14
SMI# 4
-PHOLD4,9
-PCIRST
3,4,10,11,12
V5_0
V3.3SUS
V2.5
V5_0
U14
82093AA
7
1
20
64
32
33
36
17
45
52
46
19
47
4
48
51
49
34
63
5
35
59
25
58
26
57
27
56
28
55
29
54
31
53
30
50
24
15
23
13
22
14
16
12
18
11
21
61
37
9
38
10
39
8
40
2
41
60
42
62
43
44
6
3
NC
GND
NC
VCC
NC
GND
NC
INTIN0
NC
GND
NC
VCC
NC
APICD0
NC
VCC
NC
INTIN1
NC
APICD1
INTIN2
D0
INTIN3
D1
INTIN4
D2
INTIN5
D3
INTIN6
D4
INTIN7
D5
INTIN8
D6
INTIN9
D7
INTIN10
D/I#
INTIN11
A0
INTIN12
A1
INTIN13
RD#
INTIN14
WR#
INTIN15
CS#
INTIN16
APICREQ#
INTIN17
APICACK1#
INTIN18
APICACK2#
INTIN19
PCICLK
INTIN20
RESET
INTIN21
APICCLK
INTIN22
INTIN23/SMI#
SMIOUT#
TESTIN#
U7
74ALS245
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A1
A2
A3
A4
A5
A6
A7
A8
G
DIR
B1
B2
B3
B4
B5
B6
B7
B8
C203
0.1uF
C215
0.1uF
C210
0.1uF
U21B
74HCT14
3 4
U15A
74LVC125
2 3
14
1
7
R117 10K
R50 1K
R51 1K
R39
220
RP59
10K
18
27
36
45
D4
Bat54
3 1
2
PCI
SIGNALS
IDE
SIGNALS
IDE
SIGNALS
ISA/EIO
SIGNALS
PIIX4
U8A
PIIX4E
C8
G16
C6
G19
D4
G18
D2
C17
C10
G17
E5
A17
A5
Y15
A3
F18
B5
B17
B6
A16
A1 V3
B12
F17
A12
A18
A6
F16
D5
T14
C5
G20
U11
C16
W14
B16
W3
D16
U13
E15
V13
U2
Y13
T11
T12
T2
F20
W2
W11
Y2
B15
T1
Y11
V1
W16
T10
T16
D14
Y17
W10
V17
E18
Y18
U9
W18
C14
Y19
V9
W19
B10
Y9
A14
T8
E20
W8
C13
U7
V7
A13
Y7
D18
V6
C12
Y6
A10
T5
D12
W5
D20
U4
B13
V4
D13
C20
B14
D9
E14
B20
A15
C15
A20
D15
C9
A19
B9
B19
A9
C19
D8
D19
E8
D17
B8
E19
A8
E17
D7
F19
C7
B7
A7
D6
E6
E4
C4
B4
A4
D3
E3
C3
B3
E2
C2
B2
A2
D1
E1
C1
B1
C18
H16
B18
H17
E10
A11
B11
C11
Y12
V15
U15
W4
U3
T7
U10
Y1
W7
V12
Y3
W12
W1
Y5
T4
T3
Y4
C/BE#0
PDA0
C/BE#1
PDDACK#
C/BE#2
PDA1
C/BE#3
SDA0
CLOCKRUN#
PDA2
DEVSEL#
SDDACK#
FRAME#
GPO1/LA17
IDSEL
PDREQ#
IRDY#
SDA1
PAR
SDREQ#
PCIRST# SD0
PHOLD#
PDIOR#
PHOLDA#
SDA2
SERR#
PDIOW#
STOP#
GPO2/LA18
TRDY#
PIORDY
SA0
SDIOR#
GPO3/LA19
SDIOW#
SD1
SIORDY
GPO4/LA20
SDD0
GPO5/LA21
SD2
GPO6/LA22
SA1
GPO7/LA23
SD3
PDD0
SD4
SA2
SD5
SDD1
SD6
SA3
SD7
SD8
SA4
SD9
SDD2
SD10
SA5
SD11
PDD1
SD12
SA6
SD13
SDD3
SD14
SA7
SD15
AD0
SA8
SDD4
SA9
PDD2
SA10
SDD5
SA11
SA12
SDD6
SA13
PDD3
SA14
SDD7
SA15
AD1
SA16
SDD8
SA17
PDD4
SA18
SDD9
SA19
SDD10
PDD5
SDD11
AD2
SDD12
PDD6
SDD13
SDD14
PDD7
SDD15
AD3
PDD8
AD4
PDD9
AD5
PDD10
AD6
PDD11
AD7
PDD12
AD8
PDD13
AD9
PDD14
AD10
PDD15
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31
DS3S#
DS3P#
DS1S#
DS1P#
REQ0#
REQ1#
REQ2#
REQ3#
MEMCS16#
MEMR#
MEMW#
SMEMR#
SMEMW#
SYSCLK
GPO0/BALE
GPI0/IOCHK#
REFRESH#
IOCS16#
ZEROWS#
SBHE#
RSTDRV
IOR#
IOW#
IOCHRDY
AEN
J23
JUMP3
1
2
3
C229
47pF