DS90UH926Q-Q1 Datasheet, PDF (26/58 Pages) Texas Instruments – 720p 24-Bit Color FPD-Link III Deserializer With HDCP

DS90UH926Q-Q1
SNLS337K – OCTOBER 2010 – REVISED JANUARY 2015
www.ti.com
of INTB_IN.
7.3.20 GPIO[3:0] and GPO_REG[8:4]
In 18-bit RGB operation mode, the optional R[1:0] and G[1:0] of the DS90UH926Q-Q1 can be used as the
general purpose IOs GPIO[3:0] in either forward channel (Outputs) or back channel (Inputs) application.
GPIO[3:0] Enable Sequence
See Table 6 for the GPIO enable sequencing.
1. Enable the 18-bit mode either through the configuration register bit Table 11 on DS90UH925Q-Q1 only.
DS90UH926Q-Q1 is automatically configured as in the 18-bit mode.
2. To enable GPIO3 forward channel, write 0x03 to address 0x0F on DS90UH925Q-Q1, then write 0x05 to
address 0x1F on DS90UH926Q-Q1.
NO.
DESCRIPTION
1
Enable 18-bit
mode
2
GPIO3
3
GPIO2
4
GPIO1
5
GPIO0
Table 6. GPIO Enable Sequencing Table
DEVICE
DS90UH925Q-Q1
DS90UH926Q-Q1
DS90UH925Q-Q1
DS90UH926Q-Q1
DS90UH925Q-Q1
DS90UH926Q-Q1
DS90UH925Q-Q1
DS90UH926Q-Q1
DS90UH925Q-Q1
DS90UH926Q-Q1
FORWARD CHANNEL
0x12 = 0x04
Auto Load from DS90UH925Q-Q1
0x0F = 0x03
0x1F = 0x05
0x0E = 0x30
0x1E = 0x50
0x0E = 0x03
0x1E = 0x05
0x0D = 0x93
0x1D = 0x95
BACK CHANNEL
0x12 = 0x04
Auto Load from DS90UH925Q-Q1
0x0F = 0x05
0x1F = 0x03
0x0E = 0x50
0x1E = 0x30
0x0E = 0x05
0x0E = 0x05
0x0D = 0x95
0x1D = 0x93
7.3.20.1 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 11 for the GPO_REG enable sequencing.
1. Enable the 18-bit mode either through the configuration register bit Table 11 on DS90UH925Q-Q1 only.
DS90UH926Q-Q1 is automatically configured as in the 18-bit mode.
2. To enable GPO_REG8 outputs a 1, write 0x90 to address 0x11 on DS90UH925Q.
NO.
DESCRIPTION
1
Enable 18-bit mode
2
GPO_REG8
3
GPO_REG7
4
GPO_REG6
5
GPO_REG5
6
GPO_REG4
Table 7. GPO_REG Enable Sequencing Table
DEVICE
DS90UH926Q-Q1
DS90UH926Q-Q1
DS90UH926Q-Q1
DS90UH926Q-Q1
DS90UH926Q-Q1
DS90UH926Q-Q1
LOCAL ACCESS
0x12 = 0x04
(on DS90UH925Q-Q1)
0x21 = 0x90
0x21 = 0x10
0x21 = 0x09
0x21 = 0x01
0x20 = 0x90
0x20 = 0x10
0x20 = 0x09
0x20 = 0x01
0x1F = 0x90
0x1F = 0x10
LOCAL OUTPUT VALUE
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
26
Submit Documentation Feedback
Copyright © 2010–2015, Texas Instruments Incorporated
Product Folder Links: DS90UH926Q-Q1