STG3005A2STR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STG3005A2STR

128-BIT 3D MULTIMEDIA ACCELERATOR

STMicroelectronics 

RIVA128ZX

128-BIT 3D MULTIMEDIA ACCELERATOR

Byte offsets 0x67 - 0x64

0x67

0x66

0x65

0x64

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Power Management Control/Status Register (0x67 - 0x64)

Bits Function

31:2 Reserved

1:0

POWER_STATE indicates and controls the current power state of

RIVA128ZX. Two power states are supported D0 (full power) and D3hot (low

power).

0x0 = D0

0x3 = D3hot

The RIVA128ZX does not physically change its power consumption when

POWER_STATE is modified. The device can be transitioned from D3 to D0

either by writing to this register or by applying a hard reset to the PCIRST#

pin.

Byte offset 0xFF - 0x50

RWI

R-0

RW0

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Reserved = 0x00000000

84/85

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