TMS320DM6435 Datasheet, PDF (184/252 Pages) Texas Instruments – Digital Media Processor

TMS320DM6435
Digital Media Processor
SPRS344B – NOVEMBER 2006 – REVISED NOVEMBER 2007
www.ti.com
Table 6-32. Resizer Register Descriptions (continued)
HEX ADDRESS RANGE
REGISTER ACRONYM
0x01C7 0CA8
YENH
Luminance Enhancer
DESCRIPTION
6.10.1.4 Hardware 3A (H3A)
The Hardware 3A (H3A) module provides control loops for Auto Focus, Auto White Balance and Auto
Exposure. There are 2 main components of the H3A module:
• Auto Focus (AF) Engine
• Auto Exposure (AE) & Auto White Balance (AWB) Engine
The AF engine extracts and filters the red, green, and blue data from the input image/video data and
provides either the accumulation or peaks of the data in a specified region. The specified region is a two
dimensional block of data and is referred to as a “paxel” for the case of AF.
The AE/AWB Engine accumulates the values and checks for saturated values in a sub sampling of the
video data. In the case of the AE/AWB, the two-dimensional block of data is referred to as a “window”.
The number, dimensions, and starting position of the AF paxels and the AE/AWB windows are separately
programmable.
The H3A register memory mapping is shown in Table 6-33.
Table 6-33. H3A Register Descriptions
HEX ADDRESS RANGE
REGISTER ACRONYM
0x01C7 1400
PID
0x01C7 1404
PCR
0x01C7 1408
AFPAX1
0x01C7 140C
AFPAX2
0x01C7 1410
AFPAXSTART
0x01C7 1414
AFIIRSH
0x01C7 1418
AFBUFST
0x01C7 141C
AFCOEF010
0x01C7 1420
AFCOEF032
0x01C7 1424
AFCOEFF054
0x01C7 1428
AFCOEFF076
0x01C7 142C
AFCOEFF098
0x01C7 1430
AFCOEFF0010
0x01C7 1434
AFCOEF110
0x01C7 1438
AFCOEF132
0x01C7 143C
AFCOEFF154
0x01C7 1440
AFCOEFF176
0x01C7 1444
AFCOEFF198
0x01C7 1448
AFCOEFF1010
0x01C7 144C
AEWWIN1
0x01C7 1450
AEWINSTART
0x01C7 1454
AEWINBLK
0x01C7 1458
AEWSUBWIN
0x01C7 145C
AEWBUFST
DESCRIPTION
Peripheral Revision and Class Information
Peripheral Control Register
Setup for the AF Engine Paxel Configuration
Setup for the AF Engine Paxel Configuration
Start Position for AF Engine Paxels
Start Position for IIRSH
SDRAM/DDRAM Start Address for AF Engine
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 0
IIR Filter Coefficient Data for SET 1
IIR Filter Coefficient Data for SET 1
IIR Filter Coefficient Data for SET 1
IIR Filter Coefficient Data for SET 1
IIR Filter Coefficient Data for SET 1
IIR Filter Coefficient Data for SET 1
Configuration for AE/AWB Windows
Start Position for AE/AWB Windows
Start Position and Height for Black Line of AE/AWB Windows
Configuration for Subsample Data in AE/AWB Window
SDRAM/DDRAM Start Address for AE/AWB Engine
6.10.1.4.1 Auto Focus (AF) Engine
The following features are supported by the Auto Focus (AF) Engine.
• Peak Mode in a Paxel (a Paxel is defined as a two dimensional block of pixels).
• Accumulate the maximum Focus Value of each line in a Paxel
184 Peripheral Information and Electrical Specifications
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