H1A424M167 Datasheet, PDF (38/47 Pages) Hynix Semiconductor – Image Signal Processor for Hyundai CMOS Image Sensor

Hyundai Electronics Industries Co., Ltd.
H1A424M167
l Reverse CCIR 601-256[JFIF]
R = Y + 1.402(Cr − 128 )
G = Y − 0.34414(Cb − 128)− 0.71414(Cr − 128)
B = Y + 1.772(Cb − 128 )
[ 4..3 ] 10 : YUV 4:2:2
11 : YUV 4:2:0
00, 01 : Don’t Care
[ 2 ] 0 : 16bits YCrCb when 4 : 2 : 2 or 4 : 2 : 0
1 : 8bits YCrCb when 4 : 2 : 2 or 4 : 2 : 0
[ 1 ] 0 : Y first when 8bits YCrCb
1 : CrCb first when 8bits YCrCb
[ 0 ] 0 : Cr first when YCrCb 4 : 2 : 2 or 4 : 2 : 0
1 : Cb first when YCrCb 4 : 2 : 2 or 4 : 2 : 0
[R/W]
[R/W]
[R/W]
[R/W]
* Note : 8bits output format function cannot be guaranteed.(under testing)
HSYNC Counter Register [C2h]
[06h]
[4]
[3]
[2]
[1]
[0]
This Register should be used to program the HSYNC Count during Vertical retrace
Time. This register defines number of lines for VSYNC pulse to be extended. Some
video signal processing chips like Winbond W9967, need VSYNC period as multiple of
line period. To support these chips with HYUNDAI CMOS Image Sensor, this register
have to have non-zero value.
[ 4..0 ] HSYNC Counter Value ( 0 ~ 31 )
[R/W]
8.4.2. Histogram Equalization Control Register[C3h~C4h]
Manual Histogram Mode Control Register[C3h]
[00h]
[3]
[2]
[1]
[0]
[ 3 ] Manual Histogram Function
[R/W]
1 : Manual Histogram equalization enable. If enabled, all the Y values of the
pixels are stretched with fixed contrast stretching factor defined at register C4.
In this case, auto histogram equalization function dose not work.
0 : Manual histogram equalization disable. In this case, histogram function is
affected by auto histogram equalization function.
[ 2 ..1] Knee point select
[R/W]
1999 October 11
Page 38