DS90UH947-Q1 Datasheet, PDF (42/87 Pages) Texas Instruments – 1080p OpenLDI to FPD-Link III Serializer with HDCP

DS90UH947-Q1
SNLS455 – NOVEMBER 2014
ADD
(dec)
14
ADD
(hex)
0x0E
Register Name
GPIO1 and GPIO2
Configuration
(If PORT1_SEL is set,
this register controls
the D_GPIO1 and
D_GPIO2 pins)
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Table 10. Serial Control Bus Registers (continued)
Bit(s)
7
6:4
3
2:0
Register
Type
RW
RW
RW
RW
Default
(hex)
0x00
Function
GPIO2 Output
Value
GPIO2 Mode
GPIO1 Output
Value
GPIO1 Mode
Description
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.
42
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