tm1300 NXP Semiconductors, tm1300 Datasheet - Page 123

• Manufacturer Part Number: tm1300
• Description: Tm-1300 Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 7-7. VO register fIelds
VO_CLOCK
VO_FRAME
VO_FIELD
VO_LINE
VO_IMAGE
VO_YTHR
VO_OLSTART
VO_OLHW
VO_YADD
VO_UADD
VO_VADD
Register
FREQUENCY
FRAME_LENGTH
FIELD_2_START
FRAME_PRESET
F1_VIDEO_LINE
F2_VIDEO_LINE
F1_OLAP
F2_OLAP
FRAME_WIDTH
VIDEO
IMAGE_HEIGHT
IMAGE_WIDTH
Y_THRESHOLD
IMAGE_VOFF
IMAGE_HOFF
OL_START_LINE
OL_START_PIXEL
ALPHA_ONE
OVERLAY_HEIGHT
OVERLAY_WIDTH
ALPHA_ZERO
Y_BASE_ADR
BFR1BASE_ADR
U_BASE_ADR
BFR2BASE_ADR
V_BASE_ADR
SIZE1
_
PIXEL
Field
_
START Pixel number in Frame Pixel Counter of starting pixel of active video area within the line.
VO_CLK frequency. See DDS equation in
Total number of lines per frame; the ending value of the Frame Line Counter; typically 525
or 625. Note: the Frame Line Counter counts from 1 to 525 or 625, consistent with
CCIR 656 line numbering.
Start line number in the Frame Line Counter; where the second field of the frame begins.
If non-interlaced pictures are desired, then the same value is programmed for Field 1 and
Field 2. Field 1 becomes Frame 1 and Field 2 becomes Frame 2.
Value loaded into the Frame Line Counter when frame timing edge is received on VO_IO2.
Note: currently this must be set to 1.
Line number in the Frame Line Counter of the first active video line of Field 1 of the frame.
Line number in the Frame Line Counter of the first active video line of Field 2 of the frame.
If non-interlaced pictures are desired, this is programmed to the same value as
F1_VIDEO_LINE
Overlap of the SAV and EAV codes from Field 1 to Field 2. Overlap is defined as the delay
in lines from start of blanking for Field 2 until SAV and EAV codes for Field 2 are emitted.
Typical values are +2 for 525/60 and +2 for 625/50.
Overlap in lines of the SAV and EAV code from Field 2 to Field 1. Overlap is defined as the
delay in lines from start of blanking for Field 1 until the SAV and EAV codes for Field 1 are
emitted. Typical values are +3 for 525/60 and –2 for 625/50. The negative value means
Field 1 blanking actually starts two lines before end of Field 2 of previous frame. This over-
lap is described in
Total line length in pixels including blanking. Also the ending value for the Frame Pixel
Counter. Lines always begin with a horizontal blanking interval, and the image starts after
the blanking interval and runs to the end of the line.
Note: Must be even.
Video Image height in lines.
Video Image line (scaled) output width in pixels. Must be even for upscaling by 2 .
Threshold image line number in the Image Line Counter for the YTR interrupt.
Can be reprogrammed on a frame-by-frame basis.
Image vertical offset in lines from the top of the active video window.
Image horizontal offset in pixels from the start of the active video window.
Starting image line of YUV overlay within the image.
Zero indicates that the overlay starts at the same line as the image.
Starting image pixel of the YUV overlay within the image. ‘0’ indicates that the overlay
starts at same pixel as the image. Note: Must be even.
Alpha blend value used for YUV 4:2:2+alpha format overlays when the alpha bit = 1.
Height of the YUV overlay image in lines. Note: The height of the overlay should be cho-
sen such that it does not extend beyond the image area.
Width of the YUV overlay image in pixels. Note: Must be even.
Alpha blend value used for YUV 4:2:2+alpha format overlays when the alpha bit = 0.
Y-component buffer address or Buffer 1 address.
• In video-refresh modes: Y-component starting byte address.
• In data-streaming and message-passing modes: Buffer 1 starting byte address. Note:
U-component buffer address or Buffer 2 address.
• In video-refresh modes: U-component starting byte address
• In data-streaming mode: Buffer 2 starting byte address; must be 64-byte aligned
• Not used in message-passing mode
V-component buffer address or Buffer 1 length.
• In video-refresh modes: V-component starting byte address
• In data-streaming and message-passing modes: Buffer 1 length in bytes. Note: must be
must be 64-byte aligned in data-streaming mode and 4-byte aligned in message pass-
ing mode.
a multiple of 64 in data-streaming mode. SIZE1 is limited to 24 bits.
Table 7-3 on page
PRODUCT SPECIFICATION
7-6, and illustrated in
Description
Figure
7-6, and PLL description in
Figure
Enhanced Video Out
7-30.
Section
7.18.
7-19