Design Guide
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
HUB INTERFACE LAYOUT:
Route signals with 4/8 trace/space routing. Signals
must match +/- 0.1" of HUB_STB/STB# signals
HUB INTERFACE VSWING VOLTAGE
RCOMP R should be 2/3
board impedance
PLACE RCOMP resistor within
0.5" of ICH pad using a 10 mil
trace w/ 20 mil spacing
EEPROM for ICH4-M LAN
(Atmel AT93C66-10PC-2.7)
Buffer to reduce loading on PCI_RST#
This Bus Switch prevents
leakage of the SMBus into
devices powered on the
switched rail.
Layout Note: R6H12 will
share path with R6H13
HUB_VREF and HUB_VSWING
circuits for internal
testing need 10 mil traces
w/ 20 mil spacing
4.401
ICH4-M (1 of 3)
A
18 50Monday, September 15, 2003
Intel 855GM/GME CRB <Doc>
Title
Size Document Number Rev
Date: Sheet
of
Project:
PCI_AD22
PCI_AD17
PCI_AD3
HUB_PD6
HUB_PD10
PCI_AD24
PCI_AD15
PCI_AD2
PCI_AD25
PCI_AD9
PCI_AD30
PCI_AD8
CPU_INTR
PCI_AD21
CPU_PWRGOOD
PCI_AD26
PCI_AD19
PCI_AD27
PCI_AD13
PCI_AD4
HUB_PD4
PCI_AD12
PCI_AD10
HUB_PD11
PCI_AD29
PCI_AD16
PCI_AD6
HUB_PD8
HUB_PD1
PCI_AD20
PCI_AD7
HUB_PD3
HUB_PD9
PCI_AD14
PCI_AD18
HUB_PD2
PCI_AD23
HUB_PD5
PCI_AD11
HUB_PD0
PCI_AD0
PCI_AD1
PCI_AD5
PCI_AD28
CPU_NMI
HUB_PD7
PCI_AD31
EEP_CS
EEP_SK
EEP_DIN
H_INIT#_D
INT_APICD1
INT_APICD0
HUB_RCOMP_ICH
HUB_VREF_ICH
INT_APICCLK
INT_APICD0
INT_APICCLK
H_INIT#_DQ
INT_APICD1
INT_PIRQE#_D
INT_PIRQF#_D
INT_PIRQG#_D
INT_PIRQH#_D
CPU_A20M#
CPU_SLP#
CPU_STPCLK#
CPU_SMI#
CPU_INIT#
TP_GNT0#
CPU_DPSLP#
SMB_DATA
SMB_CLK
SMB_DATA
HUB_VSWING_ICH
SMB_CLK
SMB_S_OE2#
SMB_S_OE1#
CPU_FERR#
CPU_IGNNE#
INT_PIRQA# 15,21,23,24
HUB_PD[10:0] 8,10
INT_PIRQD# 21,23,24
INT_PIRQC# 21,23,24
INT_PIRQH# 21..23,37
INT_PIRQB# 15,21,23,24
INT_SERIRQ 22..24,32,34,37
INT_PIRQE# 21..23
INT_PIRQF# 21..23
INT_PIRQG# 21..23
PCI_PME#15,22,23,37
PCI_AD[31:0]22..24
PCI_FRAME#21..24
PCI_C/BE2#22..24
PCI_SERR#21..24
PCI_PERR#21..23
PCI_LOCK#21..24
PCI_C/BE0#22..24
PCI_STOP#21..24
PCI_PAR22..24
PCI_TRDY#21..24
PCI_C/BE1#22..24
PCI_DEVSEL#21..24
PCI_IRDY#21..24
PCI_C/BE3#22..24
CLK_ICH66 6
LAN_RXD1 30
H_RCIN# 32,37
SM_INTRUDER# 21,37
LAN_RXD0 30
INT_IRQ15 21,26,37
LAN_RXD2 30
SMB_ALERT# 21,37
H_A20GATE 36
INT_IRQ14 21,26,37
LAN_JCLK 30
H_FERR# 3
PM_LANPWROK 30,32
PCI_REQ0#21
CLK_ICHPCI6
PCI_REQA#22,23
PCI_REQB#24
PCI_REQ2#21,22
PCI_REQ3#21,23
PCI_REQ1#21,22
PCI_REQ4#21,24
H_DPSLP# 3,7,37
LAN_TXD0 30
H_CPUSLP# 3,37
H_SMI# 3,37
LAN_RST 30
H_PWRGD 3,37
LAN_TXD2 30
H_NMI 3,37
LAN_TXD1 30
FWH_INIT# 31
H_INTR 3,37
H_INIT# 3,37
EEP_DOUT 19
PCI_GNTA#19,22,23
PCI_GNTB#24
PCI_GNT4#24
PCI_GNT2#22
PCI_GNT1#22
PCI_GNT3#23
+V3.3_ICHLAN 20
+V3.3S5,6,8,9,11,15..17,20,21,23,26,31,33..36,38..40,45
HUB_PSTRB# 8,10
HUB_PSTRB 8,10
H_A20M# 3
+V1.5S_ICHHUB 20
HUB_VREF_ICH 46
+V1.5S_ICHHUB 20
+V3.3 15,19,20,23,27,30,32,35,37,38,44,45
BUF_PCI_RST#22..24,26,31,32,34,37
H_STPCLK# 3,37
PSMI# 46
SMB_CLK21..24,46
SMB_DATA_S 6,8,11,12,16
SMB_DATA 21..24,46
SMB_CLK_S6,8,11,12,16
+V1.5S_ICHHUB 20
PCI_RST#7,8,10,15,33
+V5S8,15..17,20,23..25,27,33..35,38..40,45,46
+VCCP3..5,9,19,20,40,42,46
H_IGNNE# 3
C8G2
0.1UF
R6H13 NO_STUFF_0
C7G1
0.1UF
R6W14 0
PCI
I/F
ICH4-M
Interrupt
I/F
CPU I/FLAN
I/F
System
Management
I/F
EEPROM
I/F
PART A
Hub
I/F
U7G2A
ICH4-M
H5
J3
H3
K1
G5
J4
H4
J5
K2
G2
L1
G4
L2
H2
L3
F5
F4
N1
E5
N2
E3
N3
E4
M5
E2
P1
E1
P2
D3
R1
D2
P4
J2
K4
M4
N4
C1
E6
A7
B7
D6
B1
A2
B3
C7
B6
P5
M3
F1
B5
A6
E8
C5
L5
G1
L4
M2
W2
U5
K5
F3
F2
W6
AC3
AB1
AC4
AB4
AA5
Y22
AB23
U23
AA21
W21
V22
AB22
V21
Y23
U22
U21
W23
V23
L19
L20
M19
M21
P19
R19
T20
R20
P23
L22
N22
T21
K21
N20
P21
R23
M23
R22
J19
H19
K20
D5
C2
B4
A3
C8
D7
C3
C4
AC13
AA19
J22
D10
D11
A8
C12
A10
A9
A11
B10
C10
A12
C11
B11
Y5
PCI_AD0
PCI_AD1
PCI_AD2
PCI_AD3
PCI_AD4
PCI_AD5
PCI_AD6
PCI_AD7
PCI_AD8
PCI_AD9
PCI_AD10
PCI_AD11
PCI_AD12
PCI_AD13
PCI_AD14
PCI_AD15
PCI_AD16
PCI_AD17
PCI_AD18
PCI_AD19
PCI_AD20
PCI_AD21
PCI_AD22
PCI_AD23
PCI_AD24
PCI_AD25
PCI_AD26
PCI_AD27
PCI_AD28
PCI_AD29
PCI_AD30
PCI_AD31
PCI_C/BE0#
PCI_C/BE1#
PCI_C/BE2#
PCI_C/BE3#
PCI_GNT0#
PCI_GNT1#
PCI_GNT2#
PCI_GNT3#
PCI_GNT4#
PCI_REQ0#
PCI_REQ1#
PCI_REQ2#
PCI_REQ3#
PCI_REQ4#
PCI_CLK
PCI_DEVSEL#
PCI_FRAME#
PCI_GPIO0/REQA#
PCI_GPIO1/REQB_L/REQ5#
PCI_GPIO16/GNTA#
PCI_GPIO17/GNTB_L/GNT5#
PCI_IRDY#
PCI_PAR
PCI_PERR#
PCI_LOCK#
PCI_PME#
PCI_RST#
PCI_SERR#
PCI_STOP#
PCI_TRDY#
SM_INTRUDER#
SMLINK0
SMLINK1
SMB_CLK
SMB_DATA
SMB_ALERT#/GPIO11
CPU_A20GATE
CPU_A20M#
CPU_DPSLP#
CPU_FERR#
CPU_IGNNE#
CPU_INIT#
CPU_INTR
CPU_NMI
CPU_PWRGOOD
CPU_RCIN#
CPU_SLP#
CPU_SMI#
CPU_STPCLK#
HUB_PD0
HUB_PD1
HUB_PD2
HUB_PD3
HUB_PD4
HUB_PD5
HUB_PD6
HUB_PD7
HUB_PD8
HUB_PD9
HUB_PD10
HUB_CLK
HUB_PD11
HUB_PSTRB#
HUB_PSTRB
HUB_RCOMP
HUB_VREF
HUB_VSWING
INT_APICCLK
INT_APICD0
INT_APICD1
INT_PIRQA#
INT_PIRQB#
INT_PIRQC#
INT_PIRQD#
INT_PIRQE#/GPIO2
INT_PIRQF#/GPIO3
INT_PIRQG#/GPIO4
INT_PIRQH#/GPIO5
INT_IRQ14
INT_IRQ15
INT_SERIRQ
EEP_CS
EEP_DIN
EEP_DOUT
EEP_SHCLK
LAN_RXD0
LAN_RXD1
LAN_RXD2
LAN_TXD0
LAN_TXD1
LAN_TXD2
LAN_JCLK
LAN_RSTSYNC
LAN_RST#
C6W5
0.1UF
R6W18 56
R6G2
100
R6G4
100
R9Y1
10K
R6J1 0
R7F3 0
R6W5
0
C6W4
0.1UF
R6H14 0
R6W21 0
R6H1 56
C6F3
0.1UF
U7G1
AT88SC153
1
2
3
4
8
7
6
5
CS
SK
DI
DO
VCC
DC
ORG
GND
C6W7
0.01UF
R6W16 0
R6W10
487_1%
R6H12 0
U8G1
74AHC1G08
1
2
4
53
R6W2
10K
R6W12
130_1%
R7F11 0
R8G8
330
R6W19
56
R6H16 0
R7G3 0
R7F10 0
CR8G2B
3904
2
6
1
CR8G2A
3904
5
3
4
R6W15 0
R8G7
1.3K
5%
C6W3
0.01UF
R6W17 0
R6W20 0
R6H3
48.7_1%
U6G1
74CBT3306
1
2
3
4 5
6
7
8
OE1#
1A
1B
GND 2A
2B
OE2#
VCC
R6W13
150_1%
R6W9
150_1%
R6W8
10K
R6H15
330