DS90UH927Q-Q1 Datasheet, PDF (22/68 Pages) Texas Instruments – 5-MHz to 85-MHz 24-Bit Color FPD-Link III Serializer with HDCP

DS90UH927Q-Q1
SNLS433C – NOVEMBER 2012 – REVISED JANUARY 2015
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Feature Description (continued)
DESCRIPTION
GPIO1
GPIO0
Table 1. GPIO Enable and Configuration (continued)
DEVICE
DS90UH927Q-Q1
DS90UH926/8Q-Q1
DS90UH927Q-Q1
DS90UH926/8Q-Q1
FORWARD CHANNEL
0x0E = 0x03
0x1E = 0x05
0x0D = 0x03
0x1D = 0x05
BACK CHANNEL
0x0E = 0x05
0x1E = 0x03
0x0D = 0x05
0x1D = 0x03
The input value present on GPIO[3:0] may also be read from register, or configured to local output mode
(Table 5).
7.3.13.2 GPIO[8:5]
GPIO_REG[8:5] are register-only GPIOs and may be programmed as outputs or read as inputs through local
register bits only. Where applicable, these bits are shared with I²S pins and will override I²S input if enabled into
REG_GPIO mode. See Table 2 for GPIO enable and configuration.
Note: Local GPIO value may be configured and read either through local register access, or remote register
access through the Low-Speed Bidirectional Control Channel. Configuration and state of these pins are not
transported from serializer to deserializer as is the case for GPIO[3:0].
DESCRIPTION
GPIO_REG8
GPIO_REG7
GPIO_REG6
GPIO_REG5
GPIO3
GPIO2
GPIO1
GPIO0
Table 2. GPIO_REG and GPIO Local Enable and Configuration
REGISTER CONFIGURATION
0x11 = 0x01
0x11 = 0x09
0x11 = 0x03
0x10 = 0x01
0x10 = 0x09
0x10 = 0x03
0x10 = 0x01
0x10 = 0x09
0x10 = 0x03
0x0F = 0x01
0x0F = 0x09
0x0F = 0x03
0x0F = 0x01
0x0F = 0x09
0x0F = 0x03
0x0E = 0x01
0x0E = 0x09
0x0E = 0x03
0x0E = 0x01
0x0E = 0x09
0x0E = 0x03
0x0D = 0x01
0x0D = 0x09
0x0D = 0x03
FUNCTION
Output, L
Output, H
Input, Read: 0x1D[0]
Output, L
Output, H
Input, Read: 0x1C[7]
Output, L
Output, H
Input, Read: 0x1C[6]
Output, L
Output, H
Input, Read: 0x1C[5]
Output, L
Output, H
Input, Read: 0x1C[3]
Output, L
Output, H
Input, Read: 0x1C[2]
Output, L
Output, H
Input, Read: 0x1C[1]
Output, L
Output, H
Input, Read: 0x1C[0]
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