ADE3250 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ADE3250

LCD Display Engines with Integrated DVI, ADC and YUV Ports

STMicroelectronics 

Sync Mux Block

ADE3XXX

2.10

Sync Mux Block

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

q selects between all possible sync signals

q generates missing sync signals

q selects between original and generated signals for output

q generates the clamp signal for the ADC

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

Register Name

SMUX_CTRL0

SMUX_CTRL1

Addr

0x0200

0x0201

Mode Bits Default

Description

R/W

R/W

R/W

R/W

[7] 0x0

[6] 0x0

[5] 0x0

[4] 0x0

R/W

[3:2] 0x0

R/W

[1:0] 0x0

R/W

R/W

R/W

[7:6] 0x0

[5] 0x0

[4] 0x0

[3] 0x0

R/W

[2] 0x0

R/W

[1] 0x0

R/W

[0] 0x0

Select TCON[7] as internal_hsync source.

Overrides SMUX_CTRL0[1:0] selection.

Select TCON[6] as internal_vsync source.

Overrides SMUX_CTRL0[3:2] selection.

Select TCON[5] as internal_enable source.

Overrides SMUX_CTRL0[4] selection.

Internal_enab select

0: DVI

1: YUV

Vsync_internal select

0x0: DVI

0x1: SRT vsync (normally analog)

0x2: YUVi

0x3: composite sync decoder

Hsync_internal select

0x0: DVI

0x1: LLK hsync (normally analog)

0x2: YUVi

0x3: raw vga hsync (may have jitter)

Reserved

Vsync_out invert

Hsync_out invert

V_reference edge select

0: falling

1: rising

V_reference select

0: venab_generated

1: vsync_internal

H_reference edge select

0: falling

1: rising

H_reference select

0: enab_internal

1: hsync_internal

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