ADE3000SX datasheet(40/88 Pages) STMICROELECTRONICS

40 / 88 page

Sync Mux Block

ADE3XXX

40/88

2.10

Sync Mux Block

The Sync Mux (SMUX) block provides the following functions:

selects between all possible sync signals

generates missing sync signals

selects between original and generated signals for output

generates the clamp signal for the ADC

Table 14: Sync Mux Registers (Sheet 1 of 2)

Addr

Mode

Bits

Default

Description

SMUX_CTRL0

0x0200

R/W

[7]

0x0

Select TCON[7] as internal_hsync source.

Overrides SMUX_CTRL0[1:0] selection.

R/W

[6]

0x0

Select TCON[6] as internal_vsync source.

Overrides SMUX_CTRL0[3:2] selection.

R/W

[5]

0x0

Select TCON[5] as internal_enable source.

Overrides SMUX_CTRL0[4] selection.

R/W

[4]

0x0

Internal_enab select

0: DVI

1: YUV

R/W

[3:2]

0x0

Vsync_internal select

0x0: DVI

0x1: SRT vsync (normally analog)

0x2: YUVi

0x3: composite sync decoder

R/W

[1:0]

0x0

Hsync_internal select

0x0: DVI

0x1: LLK hsync (normally analog)

0x2: YUVi

0x3: raw vga hsync (may have jitter)

SMUX_CTRL1

0x0201

[7:6]

0x0

Reserved

R/W

[5]

0x0

Vsync_out invert

R/W

[4]

0x0

Hsync_out invert

R/W

[3]

0x0

V_reference edge select

0: falling

1: rising

R/W

[2]

0x0

V_reference select

0: venab_generated

1: vsync_internal

R/W

[1]

0x0

H_reference edge select

0: falling

1: rising

R/W

[0]

0x0

H_reference select

0: enab_internal

1: hsync_internal

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