- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
47
6.4. CCD Primary Color Separation Matrix
6.4.1. The Sequence of Parameter Changes
There are the parameters which can’t write to EEPROM directly, because some parameters are controlled by
built-in firmware.
Primary color separation matrix parameters which are shown in next section are the parameters which can’t
write to EEPROM directly. For example, the change sequence of RMATY (CAT2_Byte31_bit0-7) is shown
below.
1. Set CPUHOLD (CAT12_Byte5_bit0) to 1 or Set RGBMATCTL(CAT12_Byte8_bit1) to 1
2. Change the value of RMATY(CAT2_Byte31_bit0-7)
3. Write CAT2 to EEPROM. (Note: Don’t write CAT12 to EEPROM in this case.)
4. Operate Initialization processing
6.4.2. Recommended Parameter’s Value
The spectral characteristics of the color filter differ according to the type of CCD. The SS-HQ1 initial settings
are designed in consideration of the spectral characteristics of a 1/4 type CCD image sensor. Therefore,
resetting the parameters on the following table and writing this data to the EEPROM is recommended when
using other types of CCD image sensors.
Table 6.4-1 CCD Types and Recommended Primary Color Separation Matrix Parameters
CAT
2 (PICT1)
Byte
31
32
33
34
35
36
Bit
0 to 7
0 to 7
0 to 7
0 to 7
0 to 7
0 to 7
Parameter name
RMATY
RMATC
BMATY
BMATC
GMATCR GMATCB
510H ICX404/405AK
760H ICX408/409AK
2F[h] 14[h] 28[h] DC[h]
510H ICX254/255AK
760H
Type
1/3
ICX258/259AK
2B[h] 10[h] 2F[h] CF[h]
ICX206/207AK 2D[h] 00[h] 45[h] BB[h]
ICX226AK 21[h] F9[h] 2C[h]
E0[h]
510H
ICX227AK 23[h] 05[h] 2C[h]
FC[h]
ICX228/229AK 27[h] 05[h] 30[h] E0[h]
760H
Type
1/4
ICX278/279AK 2F[h] 14[h] 2F[h] DC[h]
80[h] 80[h]