TMS320DM355 datasheet(120/153 Pages) TI

120 / 153 page

www.ti.com

PCLK

(PositiveEdgeClocking)

PCLK

(NegativeEdgeClocking)

5.9.2

Video Processing Back-End (VPBE)

TMS320DM355

Digital Media System-on-Chip (DMSoC)

SPRS463 – SEPTEMBER 2007

Table 5-20. Switching Characteristics Over Recommended Operating Conditions for VPFE (CCD) Master

Mode (see Figure 5-26)

DM355

NO.

PARAMETER

UNIT

MIN

MAX

td(PCLKL-HDIV)

Delay time, PCLK edge to HD invalid

td(PCLKL-VDIV)

Delay time, PCLK edge to VD invalid

Figure 5-26. VPFE (CCD) Master Mode Control Output Data Timing

The Video Processing Back-End of VPBE module is comprised of the On Screen Display (OSD) module

and the Video Encoder / Digital LCD Controller (VENC/DLCD).

5.9.2.1 On-Screen Display (OSD)

The primary function of the OSD module is to gather and blend video data and display/bitmap data and

then pass it to the Video Encoder (VENC) in YCbCr format. The video and display data is read from

external DDR2/mDDR memory. The OSD is programmed via control and parameter registers. The

following are the primary features that are supported by the OSD.

• Support for two video windows and two OSD bitmapped windows that can be displayed simultaneously

(VIDWIN0/VIDWIN1 and OSDWIN0/OSDWIN1).

• Video windows supports YCbCr data in 422 format from external memory, with the ability to

interchange the order of the CbCr component in the 32-bit word

• OSD bitmap windows support 1/2/4/8 bit width index data of color palette

• In addition one OSD bitmap window at a time can be configured to one of the following:

–

YUV422 (same as video data)

–

RGB format data in 16-bit mode (R=5bit, G=6bit, B=5bit)

–

24-bit mode (each R/G/B=8bit) with pixel level blending with video windows

• Programmable color palette with the ability to select between a RAM/ROM table with support for 256

colors.

• Support for 2 ROM tables, one of which can be selected at a given time

• Separate enable/disable control for each window

• Programmable width, height, and base starting coordinates for each window

• External memory address and offset registers for each window

• Support for x2 and x4 zoom in both the horizontal and vertical direction

• Pixel-level blending/transparency/blinking attributes can be defined for OSDWIN0 when OSDWIN1 is

configured as an attribute window for OSDWIN0.

• Support for blinking intervals to the attribute window

• Ability to select either field/frame mode for the windows (interlaced/progressive)

• An eight step blending process between the bitmap and video windows

• Transparency support for the bitmap and video data (when a bitmap pixel is zero, there will be no

Peripheral Information and Electrical Specifications

120

Submit Documentation Feedback

TMS320DM355 Datasheet(PDF) 120 Page - Texas Instruments

TMS320DM355 Datasheet(HTML) 120 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL