STB5701 datasheet(28/35 Pages) STMICROELECTRONICS

28 / 35 page

Functional description

STB5701

28/35

Table 13.

PLL_A register

PLL_A

0x08

R/W

Bit

Bit field

Reset

state

Function

2:0

PLL_A

SAD = 0:

0x1

SAD= 1:

0x7

PLL post divider value.

Reset value determined by level on SAD input.

31:3

Reserved

0x00

Table 14.

PLL_M register format

PLL_M

0x0C

R/W

Bit

Bit field

Reset state

Function

9:0

PLL_M

SAD = 0:

0x1D5

SAD= 1:

0x1CD

PLL feedback divider value.

Reset value determined by level on SAD input.

31:10

Reserved

0x00

Table 15.

PLL_R register format

PLL_R

0x10

R/W

Bit

Bit field

Reset state

Function

9:0

PLL_R

000

PLL reference divider value

31:10

Reserved

0x00

Table 16.

SCD_config register format

SCD_config

0x80

R/W

Bit

Bit field

Reset state

Function

0Enable

1: Enables the start code detection circuit

0: By passes SCD, UHF in fed to UHF out

Re-search

1: Start a fresh research.

Reset automatically to ‘0’ on re-search start

Soft_rst

1: Resets all the counters and shift register

Reset_shift_reg

1: Reset only shift register. Status register is not affected.

31:4

Reserved

0x00

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