TMS320DM643_07 Datasheet, PDF (129/162 Pages) Texas Instruments – Video/Imaging Fixed-Point Digital Signal Processor

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TMS320DM643
Video/Imaging Fixed-Point Digital Signal Processor
SPRS269C – FEBRUARY 2005 – REVISED JANUARY 2007
5.13 Video Port
Each Video Port is capable of sending and receiving digital video data. The Video Ports are also capable
of capturing/displaying RAW data. The Video Port peripherals follow video standards such as BT.656 and
SMPTE296.
5.13.1 Video Port Device-Specific Information
The TMS320DM643 device has two video port peripherals.
The video port peripheral can operate as a video capture port, video display port, or as a transport stream
interface (TSI) capture port.
The port consists of two channels: A and B. A 5120-byte capture/display buffer is splittable between the
two channels. The entire port (both channels) is always configured for either video capture or display only.
Separate data pipelines control the parsing and formatting of video capture or display data for each of the
BT.656, Y/C, raw video, and TSI modes.
For video capture operation, the video port may operate as two 8/10-bit channels of BT.656 or raw video
capture; or as a single channel of 8/10-bit BT.656, 8/10-bit raw video, 16/20-bit Y/C video, 16/20-bit raw
video, or 8-bit TSI.
For video display operation, the video port may operate as a single channel of 8/10-bit BT.656; or as a
single channel of 8/10-bit BT.656, 8/10-bit raw video, 16/20 bit Y/C video, or 16/20-bit raw video. It may
also operate in a two channel 8/10-bit raw mode in which the two channels are locked to the same timing.
Channel B is not used during single channel operation.
For more detailed information on the DM643 Video Port peripherals, see the TMS320C64x DSP Video
Port/VCXO Interpolated Control (VIC) Port Reference Guide (literature number SPRU629).
5.13.2 Video Port Peripheral Register Description(s)
Table 5-51. Video Port 1 and 2 (VP1 and VP2) Control Registers
HEX ADDRESS RANGE
VP1
VP2
01C4 4000
01C4 8000
01C4 4004
01C4 8004
01C4 4008
01C4 8008
01C4 400C
01C4 800C
01C4 4020
01C4 8020
01C4 4024
01C4 8024
01C4 4028
01C4 8028
01C4 402C
01C4 802C
01C4 4030
01C4 8030
01C4 4034
01C4 8034
01C4 4038
01C4 8038
01C4 403C
01C4 803C
01C4 4040
01C4 8040
01C4 4044
01C4 8044
01C4 40C0
01C4 80C0
01C4 40C4
01C4 80C4
01C4 40C8
01C4 80C8
01C4 40CC
01C4 80CC
01C4 4100
01C4 8100
01C4 4104
01C4 8104
ACRONYM
VP_PIDx
VP_PCRx
–
–
VP_PFUNCx
VP_PDIRx
VP_PDINx
VP_PDOUTx
VP_PDSETx
VP_PDCLRx
VP_PIENx
VP_PIPOx
VP_PISTATx
VP_PICLRx
VP_CTLx
VP_STATx
VP_IEx
VP_ISx
VC_STATx
VC_CTLx
DESCRIPTION
Video Port Peripheral Identification Register
Video Port Peripheral Control Register
Reserved
Reserved
Video Port Pin Function Register
Video Port Pin Direction Register
Video Port Pin Data Input Register
Video Port Pin Data Output Register
Video Port Pin Data Set Register
Video Port Pin Data Clear Register
Video Port Pin Interrupt Enable Register
Video Port Pin Interrupt Polarity Register
Video Port Pin Interrupt Status Register
Video Port Pin Interrupt Clear Register
Video Port Control Register
Video Port Status Register
Video Port Interrupt Enable Register
Video Port interrupt Status Register
Video Capture Channel A Status Register
Video Capture Channel A Control Register
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DM643 Peripheral Information and Electrical Specifications 129