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Signal Descriptions
3.9 General Purpose I/O Interface
Table 3–10 General Purpose I/O Interface
Pin Name
GPIO_0
GPIO_1
GPIO_2
GPIO_3
GPIO_4
GPIO_5
GPIO_6
GPIO_7_ROMSCK
GPIO_8_ROMSI
GPIO_9_ROMSO
GPIO_10_ROMCSB I/O
GPIO_11
© 2017 Advanced Micro Devices, Inc.
AMD Confidential - Do not duplicate.
Type
PD/PU
Description
I/O
PD-reset General purpose I/O.
3.3V
Can be used as interrupt input to trigger fast power
reduction from GPU when system power source is switched
(VDDAN_33)
from AC adapter to battery.
Can be left unconnected if not used.
I/O
PD-reset General purpose I/O.
3.3V
Can be unconnected if not used.
(VDDAN_33)
I/O
PD-reset General purpose I/O.
3.3V
Can be unconnected if not used.
(VDDAN_33)
I/O
PD-reset General purpose I/O.
3.3V
Can be unconnected if not used.
(VDDAN_33)
I/O
PD-reset General purpose I/O.
3.3V
Can be unconnected if not used.
(VDDAN_33)
I/O
PD-reset General purpose I/O.
3.3V
Can be used as VRHOT interrupt to the GPU indicating
thermal overload of the regulator.
(VDDAN_33)
Can be unconnected if not used.
I/O
PD-reset General purpose I/O.
3.3V
Can be used as an alternative input for VRHOT interrupt to
the GPU indicating thermal overload of the regulator.
(VDDAN_33)
Can be unconnected if not used.
I/O
PD-reset For designs that have dedicated ROM for video BIOS, it
serves as the serial ROM clock.
3.3V
See
(VDDAN_33)
I/O
PD-reset For designs that have dedicated ROM for video BIOS, it
serves as the serial ROM input.
3.3V
See
(VDDAN_33)
I/O
PD-reset For designs that have dedicated ROM for video BIOS, it
serves as the serial ROM output.
3.3V
See
(VDDAN_33)
PU-reset For designs that have dedicated ROM for video BIOS, it
serves as the serial ROM chip-select. See
3.3V
26)
(VDDAN_33)
Also serves as pin strap.
See
I/O
PD-reset General purpose I/O and pin strap.
3.3V
See
(VDDAN_33)
Table 3–9 (p. 26)
for serial ROM usage.
Table 3–9 (p. 26)
for serial ROM usage.
Table 3–9 (p. 26)
for serial ROM usage.
for serial ROM usage.
Table 3–24 (p. 38)
for pin strap definition.
Table 3–24 (p. 38)
for pin strap definition.
27
Table 3–9 (p.
"Vega 10" Databook
56006_1.00
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