Analog Devices Advantiv ADV7611 Hardware User's Manual page 16

UG-180
TRI_PIX
This bit allows the user to tristate the output driver of pixel outputs. Upon setting TRI_PIX, the pixel output P[23:0] is tristated.
TRI_PIX, IO, Address 0x15[1]
A control to tristate the pixel data on the pixel pins, P[23:0].
Function
TRI_PIX
0
1 (default)
Tristate LLC Driver
TRI_LLC, IO, Address 0x15[2]
A control to tristate the output pixel clock on the LLC pin.
Function
TRI_LLC
0
1 (default)
Tristate Synchronization Output Drivers
The following output synchronization signals are tristated when TRI_SYNCS is set:
•
VS/FIELD/ALSB
•
HS
•
DE
The drive strength controls for these signals are provided via the DR_STR_SYNC bits. The ADV7611 does not support tristating via a
dedicated pin.
TRI_SYNCS, IO, Address 0x15[3]
Synchronization output pins tristate control. The synchronization pins under this control are HS, VS/FIELD/ALSB, and DE.
Function
TRI_SYNCS
0
1 (default)
Tristate Audio Output Drivers
TRI_AUDIO, IO Map, Address 0x15[4]
TRI_AUDIO allows the user to tristate the drivers of the following audio output signals:
•
AP
•
SCLK/INT2
•
LRCLK
•
MCLK/INT2
The drive strength for the output pins can be controlled by the DR_STR[1:0] bits. The ADV7611 does not support tristating via a
dedicated pin.
TRI_AUDIO, IO, Address 0x15[4]
A control to tristate the audio output interface pins (AP).
Function
TRI_AUDIO
0
1 (default)
Description
Pixel bus active
Tristates pixel bus
Description
LLC pin active
Tristates LLC pin
Description
Sync output pins active
Tristates sync output pins
Description
Audio output pins active
Tristates audio output pins
Rev. A | Page 16 of 184
Hardware User Guide