tc90a58f TOSHIBA Semiconductor CORPORATION, tc90a58f Datasheet - Page 26

• Manufacturer Part Number: tc90a58f
• Description: 3-channel Ad Converter
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Sub-Address 19H
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Default
Name
REG9: Sets the polarity of the signal used to control Y signal down-sampling and the signal used to
0 (default): Down-samples the Y signal only in R656 or R601 Modes.
REG7: Enables/Disables QDSEL0 for the Cr signal.
REG8: Enables/Disables QDSEL1 for the Cr signal.
QDSEL [1:0]: Sets the sampling point for when the Cr signal is down-sampled.
IDSEL1~IDSEL0: Sets the sampling point for when the Cb signal is down-sampled.
LPYON: Turns the Y LPF ON/OFF. Enabled only when LPFYPASS in Sub-Address 18H = 0.
Bit
1: Down-samples the Y signal in all modes other than R656 or R601 Modes.
0 (default): Disables QDSEL0.
1: Enables QDSEL0.
0 (default): Disables QDSEL1.
1: Enables QDSEL1.
0 (default): Y LPF OFF
1: Y LPF ON (6 MHz)
Down-samples the Cr signal in all modes other than R656, R601, 4:4:4 or 4:1:1 Modes using 1/4
the main clock.
control the Cr signal down-sampling rate (down-sampling using 1/2 or 1/4 the main clock).
QDSEL1
IDSEL1
7 (MSB)
0
0
1
1
0
0
1
1
Down-samples the Cr signal only in R656, R601 or 4:1:1 Modes using 1/4 the main
clock.
REG9
0
QDSEL0
IDSEL0
0
1
0
1
0
1
0
1
REG7
6
0
Cr0, Cr2, Cr4, …
Cr1, Cr3, Cr5, …
Unused
Unused
Cb0, Cb2, Cb4, …
Cb1, Cb3, Cb5, …
Unused
Unused
Sampling Using 1/2 the Main
Sampling Using 1/2 the Main
REG8
5
0
Clock
Clock
26
QDSEL1
4
0
Cr0, Cr4, Cr8, …
Cr1, Cr5, Cr9, …
Cr2, Cr6, Cr10, …
Cr3, Cr7, Cr11, …
Cb0, Cb4, Cb8, …
Cb1, Cb5, Cb9, …
Cb2, Cb6, Cb10, …
Cb3, Cb7, Cb11, …
Sampling Using 1/4 the Main
Sampling Using 1/4 the Main
QDSEL0
3
0
Clock
Clock
IDSEL1
2
0
IDSEL0
1
0
TC90A58F
2002-02-06
0 (LSB)
LPYON
0