82830MP Datasheet, PDF (35/159 Pages) Intel Corporation – Intel 830MP Chipset: 82830MP Graphics and Memory Controller Hub (GMCH-M)

Intel^® 830MP Chipset
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3.9
Strap Signals
Table 16 indicates the strap options invoked by various Intel 830MP chipset GMCH-M signal pins.
Table 16. Strap Signal Descriptions
Signal Name Description
DVOA_D [5]
DVOA_D[7]
DVOA_D[8]
Desktop/Mobile Selection. The state of this pin on the rising edge of RESET# selects whether
the GMCH-M is desktop or mobile.
DVOA_D [5]
Desktop/Mobile Part
0 = Desktop Part (Default)
1= Mobile Part
XOR Chain. Pulling this pin high on the rising edge of RESET# invokes the XOR Chain test
mode for checking the IO buffer connectivity. For normal operation this pin should stay low
during the rising edge of RESET#. (Default = 0) To invoke this strap, use an external pull-up
resistor to 1.5V.
All Z. Pulling this pin high on the rising edge of RESET# tri-states all GMCH outputs when ICH3-
M is in XOR Chain mode. For normal operation this pin should stay low during the rising edge of
RESET#. (Default = 0) To invoke this strap, use an external pull-up resistor to 1.5V.
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Datasheet
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