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DS90UH949-Q1 Datasheet, PDF (42/87 Pages) Texas Instruments – 1080p HDMI to FPD-Link III Bridge Serializer with HDCP
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DS90UH949-Q1
SNLS453 – NOVEMBER 2014
www.ti.com
Register Maps (continued)
ADD
(dec)
14
ADD
(hex)
0x0E
Register Name
GPIO1 and
GPIO2
ConfigurationD_
GPIO1 and
D_GPIO2
Configuration
Bit(s)
7
6:4
3
2:0
Table 10. Serial Control Bus Registers (continued)
Register
Type
RW
RW
RW
RW
Default
(hex)
0x00
Function
Description
GPIO2 Output
ValueD_GPIO
2 Output Value
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.
If PORT1_SEL is set, this register controls the D_GPIO2 pin.
GPIO2
Determines operating mode for the GPIO pin:
ModeD_GPIO2 x00: Functional input mode.
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.
If PORT1_SEL is set, this register controls the D_GPIO2 pin.
GPIO1 Output
ValueD_GPIO
1 Output Value
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.
If PORT1_SEL is set, this register controls the D_GPIO1 pin.
GPIO1
Determines operating mode for the GPIO pin:
ModeD_GPIO1 xx0: TRI-STATE™.
Mode
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.
If PORT1_SEL is set, this register controls the D_GPIO1 pin.
42
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