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HDMI-FMC_User_Manual
August 6, 2019
Table 3-2 TPI Identification Registers (RO)
Offset
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x1B
Device ID
Refer to
0x1C
Device Production Revision ID revision level (major.minor)
Refer to
0x1D
TPI Scheme
0 = Hardware
(always)
1 = Software
TPI revision level (major.minor)
Refer to
Table 3-3 Device ID Information
Device
Device ID
TPI 0x1B
Device Production
Revision ID TPI 0x1C
TPI Revision ID
TPI 0x1D
HDCP Revision
TPI 0x30
SiI9136-3/SiI9334 Tx
0xB4
0x20
0x30
0x12
◼
TPI Input Bus and Pixel Repetition Data
Input Video Mode Data
The input bus clocking format, along with clocking rate and edge, are specified in this register. The
video host also indicates the pixel repetition factor here.
Access.
This register is accessed as a single byte.
Table 3-4 TPI Input Bus and Pixel Repetition Data (R/W)
Offset
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x08
[60]
InputBusFmt
TClkSel
Ratio of output TMDS
clock
to input video clock
00 – x0.5
01 – x1 (default)
10 – x2
11 – x4
Input Bus
Select
0 – half
pixel wide
1 – full
pixel wide
(default)
Edge Select
0 – Rising
edge
1 – Falling
edge
PR3:0
Pixel Repetition Factor1
0000 – Pixel data is not replicated
0001 – Pixels are sent two times each
0011 – Pixels are sent four times each
All others – Rsvd
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