DS90UB929-Q1 Datasheet, PDF (36/71 Pages) Texas Instruments – 720p HDMI to FPD-Link III Bridge Serializer

DS90UB929-Q1
SNLS457 – NOVEMBER 2014
www.ti.com
Register Maps (continued)
ADD
(dec)
14
ADD
(hex)
0x0E
Register Name
GPIO1 and
GPIO2
Configuration
15
0x0F GPIO3
Configuration
Bit(s)
7
6:4
3
2:0
7:4
3
2:0
Table 8. Serial Control Bus Registers (continued)
Register
Type
RW
RW
RW
RW
RW
RW
Default
(hex)
0x00
0x00
Function
Description
GPIO2 Output
Value
GPIO2 Mode
GPIO1 Output
Value
GPIO1 Mode
GPIO3 Output
Value
GPIO3 Mode
Local GPIO Output Value. This value is output on the GPIO pin when the GPIO function
is enabled, the local GPIO direction is set to output, and remote GPIO control is disabled.
0: Output LOW (default).
1: Output HIGH.
Determines operating mode for the GPIO pin:
x00: Functional input mode.
x10: TRI-STATE™.
001: GPIO mode, output.
011: GPIO mode, input.
101: Remote-hold mode. The GPIO pin will be an output, and the value is received from
the remote Deserializer. In remote-hold mode, data is maintained on link loss.
111: Remote-default mode. The GPIO pin will be an output, and the value is received
from the remote Deserializer. In remote-default mode, GPIO's Output Value bit is output
on link loss.
Local GPIO Output Value. This value is output on the GPIO pin when the GPIO function
is enabled, the local GPIO direction is set to output, and remote GPIO control is disabled.
0: Output LOW (default).
1: Output HIGH.
Determines operating mode for the GPIO pin:
xx0: TRI-STATE™.
001: GPIO mode, output.
011: GPIO mode, input.
101: Remote-hold mode. The GPIO pin will be an output, and the value is received from
the remote Deserializer. In remote-hold mode, data is maintained on link loss.
111: Remote-default mode. The GPIO pin will be an output, and the value is received
from the remote Deserializer. In remote-default mode, GPIO's Output Value bit is output
on link loss.
Reserved.
Local GPIO Output Value. This value is output on the GPIO pin when the GPIO function
is enabled, the local GPIO direction is set to output, and remote GPIO control is disabled.
0: Output LOW (default).
1: Output HIGH.
Determines operating mode for the GPIO pin:
x00: Functional input mode.
x10: TRI-STATE™.
001: GPIO mode, output.
011: GPIO mode, input.
101: Remote-hold mode. The GPIO pin will be an output, and the value is received from
the remote Deserializer. In remote-hold mode, data is maintained on link loss.
111: Remote-default mode. The GPIO pin will be an output, and the value is received
from the remote Deserializer. In remote-default mode, GPIO's Output Value bit is output
on link loss.
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