Design Guide
111
Intel
®
82870P2 (P64H2)
8.2.6.9
Reference Schematic for Dual-Slot Parallel Mode
Note that the following schematics are based on definition and simulation of the P64H2. These
schematics have not been fully validated.
Figure 8-14. Reference Schematic for Dual-Slot Parallel Mode
PCIXCA P
M 66E N
S LOT 1 P resent 1
S LOT 1 P resent 2
--12V
+12V
+5V
+3V
--12V
+12V
+5V
+3V
Fault#
Pw ren 1
RST #
CLK
Power
Logic
PxA D[63:0]
PxC/BE[7:0]
PxP AR
PxP AR64
PxREQ 64#
PxA CK 64#
PxFRAM E#
PxIRDY#
PxTRDY#
PxS TO P#
PxDEV SEL#
PxP LOCK#
PxG NT0 #
PxP ERR#
PxS ERR#
PxREQ 0#
P
C
I S
L
O
T
1
15K
3.3V
P64H2
PxPCLK O [0]
PxP CLKI
PxA D[63:0]
P xC/BE [7:0]
PxPA R
PxPA R6 4
PxREQ 64#
PxA CK 64#
P xFRA ME #
PxIRDY#
PxTRDY#
PxSTO P#
PxDEVS EL#
P xPLO CK #
PxG NT[0]#
PxP ERR#
PxS ERR#
PxREQ [0 ]#
PxM 66E N
P xPCIXCAP
P xIRQ [15] (HxSW ITCHA)
PxIRQ [14 ] (HxFAULTA#)
P xIRQ [13] (HxPRSNT2A)
PxIRQ[12] (HxP RS NT1 A)
PxIRQ [1 1] (HxM 66ENA)
HPxS LOT[2] (HXPCIXCAP1 A)
HPxS LOT[1] (HXPCIXCAP2A )
P xGNT[5 ]# (HxRESE TA#)
HP xSOC (HxGNLEDA )
HPxSO L (HxAM LEDA)
HPxS ORR# (HxBUSENA# )
HP xSIL# (HxCLK ENA#)
HPxS OD (HxPW RENA)
PxIRQ[10] (HxSW ITCHB )
P xIRQ[9] (HxFAULTB #)
PxIRQ[8] (HxPRS NT2 B)
P xRE Q[5] (HxPRS NT1B )
P xRE Q[4] (HxM 66ENB )
P xRE Q[3] (HXPCIXCAP1B )
HPxSLO T[0 ] (HXP CIXCA P2B)
HPxSO R# (HxRES ETB#)
HPxSIC (HxG NL EDNB)
HP xSID (HxAM LEDB )
P xGNT[4 ] (HxBUSENB #)
P xGNT[3 ] (HxCLKENB# )
HP xSOL R (HxPW RE NB)
330
Switch
330
33
33
ENB
PW ROK
PxPCLK O [6]
PxRE Q[2 ]#
sho uld b e p ulled
to 3.3 V thro ugh
8.2K
8 .2K
3.3V
P CIXCA P
M 66 EN
S LOT 1 Present 1
S LOT 1 Present 2
--12 V
+12V
+5V
+3V
RST #
CL K
PxAD[63:0]
PxC/BE[7:0]
PxPA R
PxPA R64
PxREQ 64#
PxACK 64#
PxFRAM E#
PxIRDY#
PxTRDY#
PxSTO P#
PxDEV SEL#
PxPL OCK#
PxG NT1 #
PxPE RR#
PxSE RR#
PxREQ 0#
P
C
I
S
L
O
T
2
PxPCLK O [1]
33
--12 V
+12V
+5V
+3V
Fault#
Pw ren 1
Power
Logic
Busen#
P CI BUS SIGNALS
PCI BUS SIGNAL S
Slot 1 Bus
Switch
Busen#
P CI BUS SIGNALS
PCI BUS SIGNAL S
Slot 2 Bus
Switch
Clken #
PxPCLK O 0
P xPCLKO 0
Slot 1 Clock
Switch
Clke n#
PxP CL KO 1
P xPCLKO 1
Slot 1 Clock
Switch
10K
2.2 K
10K
8.2K
3.3V
8.2K
3 .3V
3.3V
5 .6K
10K
3.3V
Com para tor
Com pa rato r
3.3V
10K
2.2K
1 0K
8 .2K
3.3V
8.2K
3 .3V
5.6 K
10K
3.3V
Co mp arator
Com pa rato r
3.3V
3.3 V
1K
15K
3 .3V
3 30
Switch
330
PxG NT[1]#
PxREQ [1 ]#
10K
1 0K
Input to PW ROK
10K
10K
3.3V
Inverter
E NB
3.3V
Note * All PCI signals m uxed or not need to follow PCI spec 2.2 pullup requirem ents
4:2
M UX
SE L
S1
S2
S3
S4
D1
D2
Truth Table
SEL D1 D2
0 S1 S2
1 S3 S4
85
85
85
8 5
PxM 66E N needs to
be routed to eac h
PCI Slot by m ea ns
of a bus sw itch so
that the P6 4H2 c an
drive this s ignal
w hen appropriate
15K
3.3V
P xM 66EN
100 K
10 K
3.3V
5 K
3.3V
5 K
5K
3.3 V
5K
Summary of Contents for Xeon
Page 24: ...Introduction 24 Design Guide This page is intentionally left blank ...
Page 30: ...Component Quadrant Layout 30 Design Guide This page is intentionally left blank ...
Page 52: ...Platform Clock Routing Guidelines 52 Design Guide This page is intentionally left blank ...
Page 66: ...System Bus Routing Guidelines 66 Design Guide This page is intentionally left blank ...
Page 118: ...Intel 82870P2 P64H2 118 Design Guide This page is intentionally left blank ...
Page 146: ...I O Controller Hub 146 Design Guide This page is intentionally left blank ...
Page 148: ...Debug Port 148 Design Guide This page is intentionally left blank ...
Page 210: ...Schematic Checklist 210 Design Guide This page is intentionally left blank ...
Page 220: ...Layout Checklist 220 Design Guide This page is intentionally left blank ...
Page 222: ...Schematics 222 Design Guide This page is intentionally left blank ...