Preliminary
Architecture
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Table 6-11. HDMI Video Port Mapping (continued)
Color Component
VPSS HD_VENC OUTPUT
HDMI Video Data Input Bus
Color Component
BUS
B7
VPSS_DATA[7]
HDMI_VIDEO_DATA[9]
B9
B6
VPSS_DATA[6]
HDMI_VIDEO_DATA[8]
B8
B5
VPSS_DATA[5]
HDMI_VIDEO_DATA[7]
B7
B4
VPSS_DATA[4]
HDMI_VIDEO_DATA[6]
B6
B3
VPSS_DATA[3]
HDMI_VIDEO_DATA[5]
B5
B2
VPSS_DATA[2]
HDMI_VIDEO_DATA[4]
B4
B1
VPSS_DATA[1]
HDMI_VIDEO_DATA[3]
B3
B0
VPSS_DATA[0]
HDMI_VIDEO_DATA[2]
B2
GND
GND
HDMI_VIDEO_DATA[1]
B1
GND
GND
HDMI_VIDEO_DATA[0]
B0
6.2.9.1.3 Video Interface Configuration
The slave port is connected to the HDMI module. Always clear the HDMI_WP_VIDEO_CFG[1:0] Mode
bit field to 0.
According to the video data bus connection and pixel format, packing mode must be selected. The
format supported by the HDMI module is 36-bit RGB. The packing can be selected through the
HDMI_WP_VIDEO_CFG[10:8] PACKING_MODE bit field:
•
HDMI_WP_VIDEO_CFG[10:8] PACKING_MODE = 0: If 10-bit deep-color mode is selected and
RGB format is used on the video port data bus:
•
HDMI_WP_VIDEO_CFG[10:8] PACKING_MODE = 1: If 8-bit deep-color mode is not selected and
RGB format is used on the video port data bus:
•
HDMI_WP_VIDEO_CFG[10:8] PACKING_MODE = 7h: If 12-bit deep-color mode is selected and
RGB format is used on the video port data bus. No change on input video data lines. The
VIDEO_S_DATA[35:0] data is provided without any change in it.
Video Timing is controlled by VENC module inside VPSS which drives HDMI module. Please refer
VPSS PRG for information about timing for different resolutions.
6.2.9.2
Wrapper Audio Interface
6.2.9.2.1 Audio Interface Description
The HDMI module supports parallel interface that is based on a filling of the audio FIFO through the L3
interconnect. The audio data and register configuration is received through the L3 interconnect on a
request to the device EDMA module. Each 32-bit access is split into four consecutive accesses to the
HDMI Core 8-bit registers of the 32-bit access, starting with the least-significant bit (LSB) to the MSB.
is an overview of the audio interface to the HDMI core.
708
High-Definition Multimedia Interface (HDMI)
SPRUGX9 – 15 April 2011
© 2011, Texas Instruments Incorporated