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Design Checklist
Table 8-1. AGTL+ Connectivity Checklist for 370-Pin Socket Processors
CPU Pin
1
A[35:3]#
1
ADS#
AERR#
AP[1:0]#
BERR#
BINIT#
1
BNR#
BP[3:2]#
BPM[1:0]
1
BPRI#
BREQ[0]# (BR0#)
1
D[63:0]#
1
DBSY#
DEFER#
DEP[7:0]#
1
DRDY#
1
HIT#
1
HITM#
1
LOCK#
REQ[4:0]#
RESET# /
RESET2#
RP#
RS[2:0]#
RSP#
1
TRDY#
NOTES:
1. For Intel
AGTL+ termination resistors. If the Intel
provided by the Intel
2. If the Intel
56Ω resistor and RESET2# is grounded.
8-2
I/O
Connect A[31:3]# to GMCH. Leave A[35:32]# as No Connect (not supported
I/O
by chipset).
I/O
Connect to GMCH.
I/O
Leave as No Connect (not supported by chipset).
I/O
Leave as No Connect (not supported by chipset).
I/O
Leave as No Connect (not supported by chipset).
I/O
Leave as No Connect (not supported by chipset).
I/O
Connect to GMCH.
I/O
Leave as No Connect.
I/O
Leave as No Connect.
I
Connect to GMCH.
10 Ω pulldown resistor to ground.
I/O
I/O
Connect to GMCH.
I/O
Connect to GMCH.
1
I
Connect to GMCH.
I/O
Leave as No Connect (not supported by chipset).
I/O
Connect to GMCH.
I/O
Connect to GMCH.
I/O
Connect to GMCH.
I/O
Connect to GMCH.
1
I/O
Connect to GMCH.
Terminate to V
I
Decoupled through a 22 W resistor in series with a 10 pf capacitor to ground.
2
Connect to GMCH. Also terminate to V
I/O
Leave as No Connect (not supported by chipset).
I
Connect to GMCH.
I
Leave as No Connect (not supported by chipset).
I
Connect to GMCH.
®
Celeron™ (PPGA package) processor electrical compatibility, the motherboard must include
®
®
Pentium
III processor (except RESET#).
®
Celeron™ processor is not supported by the motherboard, then RTTCTRL is pulled down with a
Comments
to 1.5V through a 91 Ω resistor.
TT
TT
®
Celeron™ processor is not supported, AGTL+ termination is
through a 91 Ω resistor.
®
Intel
810A3 Chipset Design Guide
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