Public Version
www.ti.com
Display Subsystem Register Manual
Table 7-214. DISPC_VIDn_ACCUl
Address Offset
0x0E8+ ((–1)* 0x90)+ (l*0x04)
Index
n = 1 for VID1 or 2 for VID2
l = 0 to 1
Physical address
0x4805 04E8 + ((n-1)*0x90)+ (l*0x04)
Instance
DISC
Description
The register configures the resize accumulator init values for horizontal and vertical up-/down-sampling of video
window #n (#I for ping-pong mechanism with external trigger, based on the field polarity)
Shadow register, updated on VFP start period or EVSYNC.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reserved
VIDVERTICALACCU
Reserved
VIDHORIZONTALACCU
Bits
Field Name
Description
Type
Reset
31:26
Reserved
Write 0s for future compatibility.
RW
0x00
Read returns 0
25:16
VIDVERTICAL
Vertical initialization accu value. Encoded value (from 0 to 1023).
RW
0x000
ACCU
15:10
Reserved
Write 0s for future compatibility.
RW
0x00
Read returns 0
9:0
VIDHORIZONTAL
Horizontal initialization accu value. Encoded value (from 0 to 1023).
RW
0x000
ACCU
Table 7-215. Register Call Summary for Register DISPC_VIDn_ACCUl
Display Subsystem Basic Programming Model
•
Display Controller Basic Programming Model
:
•
Video Up-/Down-Sampling Configuration
:
Display Subsystem Use Cases and Tips
•
:
•
:
Display Subsystem Register Manual
•
Display Controller VID1 Register Mapping Summary
•
Display Controller VID2 Register Mapping Summary
Table 7-216. DISPC_VIDn_FIR_COEF_Hi
Address Offset
0x0F0+ ((–1)* 0x90) + (i* 0x08)
Index
n = 1 for VID1 or 2 for VID2
i = 0 to 7
Physical address
0x4805 04F0+ ((n-1)*0x90) + (i*0x08)
Instance
DISC
Description
The bank of registers configure the up-/down-scaling coefficients for the vertical and horizontal resize of the video
picture associated with video window #n for the phases from 0 to 7.
Shadow register, updated on VFP start period or EVSYNC.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
VIDFIRHC3
VIDFIRHC2
VIDFIRHC1
VIDFIRHC0
Bits
Field Name
Description
Type
Reset
31:24
VIDFIRHC3
Signed coefficient C3 for the horizontal up-/down-scaling with the phase n
RW
0x00
23:16
VIDFIRHC2
Unsigned coefficient C2 for the horizontal up-/down-scaling with the phase
RW
0x00
n
15:8
VIDFIRHC1
Signed coefficient C1 for the horizontal up-/down-scaling with the phase n
RW
0x00
7:0
VIDFIRHC0
Signed coefficient C0 for the horizontal up-/down-scaling with the phase n
RW
0x00
1859
SWPU177N – December 2009 – Revised November 2010
Display Subsystem
Copyright © 2009–2010, Texas Instruments Incorporated