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Camera ISP Register Manual
Table 6-355. Register Call Summary for Register PRV_PID
Camera ISP Register Manual
•
Camera ISP PREVIEW Register Summary
:
Table 6-356. PRV_PCR
Address Offset
0x0000 0004
Physical Address
0x480B CE04
Instance
ISP_PREVIEW
Description
PERIPHERAL CONTROL REGISTER All the fields in this register can be altered even when the
PREVIEW module is busy. Changes take place only for the next frame.
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
CFAFMT
NFEN
BUSY
WIDTH
CFAEN
SUPEN
YCPOS
ENABLE
DRKFEN
SOURCE
DCOREN
HMEDEN
INVALAW
DRK_FAIL
RSZPORT
DRKFCAP
SDRPORT
YNENHEN
ONESHOT
RESERVED
RESERVED
SCOMP_EN
SCOMP_SFT
DCOR_METHOD
GAMMA_BYPASS
Bits
Field Name
Description
Type
Reset
31
DRK_FAIL
Dark frame subtract fail status.
RW
0x0
Write 1 to clear this bit.
Reset to zero for the next frame. When the error is
triggered, dark frame subtract is abandoned for the
current frame, dark frame subtract resumes for next
frame (but bit is not cleared unless explicitly done by
firmware).
0x0: No error
0x1: Error
30:29
RESERVED
Write 0s for future compatibility.
RW
0x0
Reads returns 0.
28
DCOR_METHOD
Defect correction method.
RW
0x0
0x0: MinMax
0x1: MinMax2 (Couplet defect correction)
27
DCOREN
Defect correction enable
RW
0x0
This bit enables or disables the defect correction. The
.DCOR_METHOD and
registers must be configured for correct operation.
0x0: Disable defect correction
0x1: Enable defect correction
26
GAMMA_BYPASS
Bypass, the output is set to the 8 MSB of the 10-bit input.
RW
0x0
0x0: No bypass.
0x1: Bypass, the output is set to the 8 MSB of the 10-bit
input.
25
RESERVED
Write 0s for future compatibility.
RW
0x0
Reads returns 0.
24:22
SCOMP_SFT
Shading compensation shift value after multiplication.
RW
0x0
The right-shift range is 0 to 7.
21
SCOMP_EN
Shading compensation enable instead of dark frame
RW
0x0
The 8-bit value loaded from memory is multiplied by the
current pixel instead of subtracting it. Note that the dark
frame subtract (DRKFEN) must be enabled in addition to
this bit being active to perform shading compensation.
0x0: Disable. Dark frame subtract can be used.
0x1: Enable. Dark frame subtract cannot be used.
1427
SWPU177N – December 2009 – Revised November 2010
Camera Image Signal Processor
Copyright © 2009–2010, Texas Instruments Incorporated