WM8213SCDSSLASHRV datasheet(31/38 Pages) WOLFSON

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Production Data

WM8213

PD Rev 4.1 July 2008

The following table describes the function of each of the control bits shown in Table 7.

ADDRESS

<A5:A0>

BIT

NAME(S)

DEFAULT

DESCRIPTION

Global Enable

0 = complete power down,

1 = fully active (individual blocks can be disabled using individual

power down bits – see setup register 5).

CDS

Select correlated double sampling mode:

0 = single ended mode,

1 = CDS mode.

MONO

Sampling mode select (see Table 5 for further details):

0 = other mode (2 or 3-channel)

1 = Monochrome (1-channel) mode. Input channel selected by

CHAN[1:0] register bits, unused channels are powered down.

TWOCHAN

Sampling mode select (see Table 5 for further details):

0 = other mode (1 or 3-channel)

1 = 2-channel mode. Inputs channels are Red and Green, Blue

channel is powered down.

5:4

PGAFS[1:0]

Offsets PGA output to optimise the ADC range for different

polarity sensor output signals. Zero differential PGA input signal

gives:

0x = Zero output from the PGA (Output code=32767)

10 = Full-scale positive output (OP=65535) - use for negative

going video.

NB, Set INVOP=1 if zero differential input should give a

zero output code with negative going video.

11 = Full-scale negative output (OP=0) - use for positive going

video

MODE4LEG

This bit has no effect when LEGACY=0. Set this bit when

operating in LEGACY MODE4:

0 = other modes, 1 = LEGACY MODE4.

000001

(01h)

Setup

LEGACY

Makes the WM8213 timing compatible with the WM819x and

WM815x AFE families.

0 = Normal timing

1 = Enable LEGACY timing. Requires double rate MCLK and

pixel rate VSMP input. RSMP pin performs same function as

RLC/ACYC pin on WM819x devices.

WM8213SCDS/RV データシート(PDF) 31 Page - Wolfson Microelectronics plc

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