AMD SP5100 Data Book page 30

AMD SP5100 Databook
Interface Signal Name
BMREQ#/REQ5#/GPIO65
LLB#/GPIO66
SATA_ACT#/GPIO67
LDRQ1#/GNT5#/GPIO68
REQ3#/GPIO70
REQ4#/GPIO71
GNT3#/GPIO72
GNT4#/GPIO73
IMC GPIO IMC_GPIO
Note: The pin has an internal integrated pull-up or pull-down resistor that is not enabled by default. The pin's default
function does not require a pull-up or pull-down. However, if the pin is used for an alternate function and a pull-up or
pull-down is required, the internal resistor can be enabled by the indicated register.
Integrated Resistor and External Pull-up/Pull-down Resistor
30
Value of
Integrated / External
Resistor
Integrated 8.2 K
Integrated 10 K
Integrated 8.2 K
Integrated 15 K
Integrated 15 K
Integrated 15 K
Integrated 8.2 K
Integrated 8.2 K
Integrated 10 K
Requirements
44409 Rev. 1.70 October 10
Register for
Resistor Type programming the
integrated PU/PD
See Note PM2_Rg F0h
Default: Pull-up/Pull-
down not enabled
Pull-up PM2_Rg F0h
Default: Pull-up
enabled
See Note PM2_Rg F0h
Default: Pull-up/Pull-
down not enabled
Pull-up PM2_Rg F1h
Default: Pull-up
enabled
Pull-up PM2_Rg F1h
Default: Pull-up
enabled
Pull-up PM2_Rg F1h
Default: Pull-up
enabled
See Note PM2_rg F2h
Default: Pull-up/Pull-
down not enabled
See Note PM2_rg F2h
Default Pull-up/Pull-
down not enabled
LPC PCI config
DCh:CCh.
Default: Pull-up/Pull-
down not enabled