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Display Subsystem Functional Description
Table 7-46. Video DAC Stage Power Management
Power Management Controls
AVDAC2
AVDAC1
VENC_OUTPUT_ VENC_OUTPUT_C VENC_OUTPUT
CONTROL_DEV
CONTROL_D
[1]
[0]
CONF1[18]
EVCONF1[11]
Description
DAC_POWERD
CHROMA_ENAB
COMPOSITE_ENA
LUMA_ENABL
TVOUTBYPASS
TVACEN
N_BGZ
LE
BLE
E
Total power down.
0
x
x
x
x
x
Bandgaps powered
down.
Standby (analog in
1
0
0
0
x
x
power down except
bandgaps/LDOs)
Full power up in DC
1
1
1
1
0
0
mode
Full power up in AC
1
1
1
1
0
1
mode
Full power up in
1
1
1
1
1
x
TVOUT bypass mode
(DAC-only mode)
1705
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
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