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Intel
®
440GX AGPset Design Guide
3-4
Design Checklist
TDO
UP
: Connected to ITP. 150 ohm pull-up to 2.5V.
DP
: Connected to jumpers between ITP and CPU signals. See DP schematics for details.
TDI
UP
: Connected to ITP. 150 ohm - 330 ohm pull-up to 2.5V.
DP
: Connected to jumpers between ITP and CPU signals. See DP schematics for details.
TESTHI
UP
: 4.7K ohm pull-up to 2.5V.
DP
: Connect CPUs and 4.7K ohm pull-up to 2.5V.
THERMTRIP#
UP
: NC if not used. 220 ohm pull-up to 2.5V if used.
DP
: Connect CPUs and 220 ohm
pull-up to 2.5V.
TMS
UP
: 1K ohm pull-up to 2.5V. 47 ohm series resistor to ITP.
DP
: Separate 47 ohm series
resistors then hooked together to ITP. 1K ohm pull-up to 2.5V.
TRDY#
UP
: Connect to 82443GX.
DP
: Connect CPUs and 82443GX.
TRST#
UP
: Connect to ITP. 680 ohm pull-down.
DP
: Connect CPUs and 680 ohm pull-down.
VID[4:0]
8.2K ohm pull-up to 5V is the default for VRM use. Optional override could be used. Also
connect to optional LM79.
Table 3-2. GND & Power Pin Definition
GND Vcc
CORE
Vtt (1.5V) VCC3 (3.3V) Reserved (NC) Vcc (5V)
A2 A62 B13 B89 A1 B113 A16 B109
A6 A66 B17 B93 A3 B117 A47
A10 A70 B25 B97 B5 B121 A88
A14 A74 B29 B105 B9 A113
A18 A78 B33 A116
A22 A82 B37 B12
A26 A86 B45 B20
A30 A90 B49 B112
A34 A94 B53
A38 A98 B57
A42 A102 B65
A46 A106 B69
A50 A110 B73
A54 A114 B77
A58 A118 B85
Table 3-1. Slot Connectivity (Sheet 3 of 3)
Processor Pin Pin Connection