DS90UH925Q Datasheet, PDF (18/47 Pages) Texas Instruments – 720p 24-bit Color FPD-Link III Serializer with HDCP

DS90UH925Q
GPO_REG[8:4] Enable Sequence
GPO_REG[8:4] are the outputs only pins. They must be programmed through the local register bits. See Table 3 for the GPO_REG
enable sequencing.
Step 1: Enable the 18-bit mode either through the configuration register bit on DS90UH925Q only. DS90UH926Q is automatically
configured as in the 18-bit mode.
Step 2: To enable GPO_REG8 outputs an “1”, write 0x90 to address 0x11 on DS90UH925Q.
TABLE 3. GPO_REG Enable Sequencing Table
#
Description
1 Enable 18-bit mode
2
GPO_REG8
3
GPO_REG7
4
GPO_REG6
5
GPO_REG5
6
GPO_REG4
Device
DS90UH925Q
DS90UH925Q
DS90UH925Q
DS90UH925Q
DS90UH925Q
DS90UH925Q
Local Access
0x12 = 0x04
0x11 = 0x90
0x11 = 0x10
0x11 = 0x09
0x11 = 0x01
0x10 = 0x90
0x10 = 0x10
0x10 = 0x09
0x10 = 0x01
0x0F = 0x90
0x0F = 0x10
Local Output
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
18
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