Intel 855PM Design Manual page 117

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Figure 65. Processor V
CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW CROSS SECTION VIEW
South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side South/Legacy Side
PKG PKG PKG PKG PKG PKG PKG PKG PKG PKG PKG PKG
SKT SKT SKT SKT SKT SKT SKT SKT SKT SKT SKT SKT
L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS L1 PS
L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND L2 GND
L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig L3 Sig
L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND L4 GND
L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR L5 PWR
L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig L6 Sig
L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND L7 GND
L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS L8 SS
150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP 150uF POSCAP
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Intel 855PM Chipset Platform Design Guide
Power Plane and Decoupling Example
CCP
Intel Pentium M Intel Pentium M
processor Silicon Die processor Silicon Die
Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die Pentium M Silicon Die
10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603 10x0.1uF 0603
Platform Power Requirements
VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE
DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA
North Side North Side North Side North Side North Side North Side North Side North Side North Side North Side North Side North Side
VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP
Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side
Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy Legacy
Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side
SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE SECONDARY SIDE
VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To VCCP To
DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA
855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM & 855PM &
VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE
ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M ICH4-M Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side
+ + + + + + + + + + + + + +
VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP
GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias Vias
VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE VCC-CORE
Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE Primary SIDE
ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR
Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side
ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR
Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side Side
+ + + + + + + + + + + + + + + +
- - - - - - - - - - - - - -
VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP VCCP
To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP To ITP
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