An269 – Cirrus Logic AN269 User Manual
Page 48
48
AN269REV1
AN269
For the case of Red[7:5] = 011b, the following output patterns will be generated:
For this pixel input value, the pixel output value is on 50% of the time, which means that this will produce
50% brightness on the red channel.
For the case of Red[7:5] = 101b, the following output patterns will be generated:
For this pixel input value, the pixel output value is on 75% of the time, which means that this will produce
75% brightness on the red channel.
Frame 0
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
Frame 1
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
VCNT=00b
1
1
0
0
0
0
1
1
VCNT=01b
1
0
1
0
0
1
0
1
VCNT=10b
0
0
1
1
1
1
0
0
VCNT=11b
1
0
1
0
0
1
0
1
Frame 2
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
Frame 3
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
VCNT=00b
1
0
1
0
0
1
0
1
VCNT=01b
1
1
0
0
0
0
1
1
VCNT=10b
1
0
1
0
0
1
0
1
VCNT=11b
0
0
1
1
1
1
0
0
Table 10. Grayscale Output for Red[7:5] = 011b
Frame 0
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
Frame 1
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
VCNT=00b
1
0
1
1
VCNT=00b
1
1
1
0
VCNT=01b
1
1
0
1
VCNT=01b
0
1
1
1
VCNT=10b
1
1
1
0
VCNT=10b
1
0
1
1
VCNT=11b
0
1
1
1
VCNT=11b
1
1
0
1
Frame 2
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
Frame 3
HCNT
=00b
HCNT
=01b
HCNT
=10b
HCNT
=11b
VCNT=00b
1
1
0
1
VCNT=00b
0
1
1
1
VCNT=01b
1
0
1
1
VCNT=01b
1
1
1
0
VCNT=10b
0
1
1
1
VCNT=10b
1
1
0
1
VCNT=11b
1
1
1
0
VCNT=11b
1
0
1
1
Table 11. Grayscale Output for Red[7:5] = 101b