STW8009 datasheet(37/55 Pages) STMICROELECTRONICS

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STw8009/STw8019

Control registers

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main_if_del: The delay on the luma comparing to chroma in CVBS and S-VHS outputs.

This delay is 5 clock cycles (27 MHz clock).

(*) 0 = enabled

1 = disabled

ennotch: Notch filtering on the cvbs output

(*) 0 = disabled

1 = enabled

dac12_conf: Please refer to the table below for all combinations to be observed at DACs.

Defines the phase shift in the subcarrier during active video with respect to the subcarrier

phase during the color burst. Once enabled by Register_4(2) “hue_en”, phase variation

would be in a range of +/- 22.324 degrees with increments of 0.17578127.

Note:

Pulse the Register_4(2) “hue_en” to make sure that a value programmed in this register is

effective immediately after programming Hue_control. Once enabled, to disable any phase

shift in active subcarrier wrt burst, write the default value into the Hue_control register

followed by a pulse on Register_4(2) “hue_en”.

Configuration 11

Address:

0x005D

Type: R/W

content

xxx

main_if_

del

xxx

default

[0]

[1]

[0]

Configuration 12

Address:

0x005E

Type: R/W

content

xxx

ennotch

xxx

default

[0]0

[0]0[0]0

Configuration 13

Address:

0x005F

Type: R/W

content

dac12_

conf

default

[0]

[1]

Table 17.

dac12_conf

dac1

dac2

(*)0

CVBS

Hue control

Address: 0x0069

Type: R/W

content

hue_con

t (7)

hue_con

t (6)

hue_con

t (5)

hue_con

t (4)

hue_con

t (3)

hue_con

t (2)

hue_con

t (1)

hue_con

t (0)

default

0000

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