Guide
Platform Design Checklist
R
Intel
®
852GM Chipset Platform Design Guide 245
Pin Name System
Pull-up/Pull-
down
Series
Termination
Voltage
Translation
Notes
9
IERR#
56
Ω pull-up to
VCCP
IERR# is a 1.05 V signal. Voltage
translation logic and/or series resistor
may be required if used.
INIT#
R1 = 1.3 K
Ω
R2 = 330
Ω
Rs = 330
Ω
Point-to-point connection to ICH4-M.
Voltage transition circuit is required if
connecting to FWH. Signal is T-split
from the ICH4-M to FWH.
IGNNE# Point-to-point connection to ICH4-M.
LINT0/INTR Point-to-point connection to ICH4-M.
LINT1/NMI Point-to-point connection to ICH4-M.
PROCHOT#
56
Ω pull up to
VCCP
R1 = 1.3 K
Ω
R2 = 330
Ω
Rs = 330
Ω
PROCHOT# is a VCCP signal. This
signal is not used on the CRB. So,
voltage translation logic may be
required if used.
If Voltage Translation is Required:
Driver isolation resistor should be
placed at the beginning of the T-split
to the system receiver.
PSI# Can be left as NC, if not used for
IMVP.
PWRGOOD
330
Ω pull-up to
VCCP
Point-to-point connection to ICH4-M,
with resistor placed by the processor.
RESET#
54.9
Ω ± 1%
pull-up to VCCP
If USING
ITP700FLEX
22.6
Ω ± 1%
from pull-up to
ITP700FLEX
If ITP700FLEX is Not Used: Point-to-
point connection to GMCH.
If ITP700FLEX is Used: RESET#
connects from processor to GMCH
and then forks out to ITP700 FLEX,
with pull-up and series damping
resistor placed next to ITP.
RSVD (pin
AC1, AF7,
C3, C14, E26,
G1)
Route to test points.
SLP# Point-to-point connection to ICH4-M.
SMI# Point-to-point connection to ICH4-M.
STPCLK# Point-to-point connection to ICH4-M.
TEST[3:1]
1 K
Ω pull-down
to gnd
(default: no
stuff)
For each signal, stuffing option for
pull-down should be provided for
testing purposes. For normal
operation, leave the resistors
unpopulated.
THERMTRIP#
56
Ω pull-up to
VCCP
56 Ω from pull-
up to ICH4-M
pin
Point-to-point connection to ICH4-M,
with pull-up and series resistors
placed by ICH4-M. THERMTRIP# is a
VCCP signal. If connecting to other
device, voltage translation logic may
be required.
VCC[71:0] Connect to
VccCORE
VCCA[3:0] Connect to
Vcc1_8
VCCP[26:0] Connect to
VCCP