Production Data

WM8213

w

PD Rev 4.1 July 2008

27

LEGACY OPERATING MODES

Table 6 summarises the most commonly used modes, the clock waveforms required and the register

contents required for CDS and non-CDS operation.

MODE

DESCRIPTION

CDS

AVAILABLE

MAX

SAMPLE

RATE

SENSOR

INTERFACE

DESCRIPTION

TIMING

REQUIRE-

MENTS

REGISTER

CONTENTS

WITH CDS

REGISTER

CONTENTS

WITHOUT

CDS

1

Colour

Pixel-by-Pixel

Yes

4MSPS

The 3 input channels

are sampled in

parallel. The signal is

then gain and offset

adjusted before being

multiplexed into a

single data stream

and converted by the

ADC, giving an output

data rate of 12MSPS

max.

MCLK max

= 24MHz

MCLK:

VSMP

ratio is

2n:1 , n

≥ 3

SetReg1:

83(hex)

SetReg1:

81(hex)

2

Monochrome/

Colour

Line-by-Line

Yes

4MSPS

As mode 1 except:

Only one input

channel at a time

is continuously

sampled.

MCLK max

= 24MHz

MCLK:

VSMP

ratio is

2n:1 , n

≥ 3

SetReg1:

87(hex)

SetReg1:

85(hex)

3

Fast

Monochrome/

Colour

Line-by-Line

Yes

8MSPS

Identical to mode 2

MCLK max

= 24MHz

MCLK:

VSMP

ratio is 3:1

Identical to

mode 2 plus

SetReg3:

bits 5:4 must

be set to

0(hex)

Identical to

mode 2

4

Maximum

speed

Monochrome/

Colour

Line-by-Line

No

12MSPS

Identical to mode 2

MCLK max

= 24MHz

MCLK:

VSMP

ratio is 2:1

CDS not

possible

SetReg1:

C5(hex)

Table 6 WM8213 Legacy Operating Modes

Notes:

1.

In Monochrome mode, SetReg3 bits 7:6 determine which input is to be sampled.

2.

For Colour Line-by-Line, set control bit LINEBYLINE. For input selection, refer to Table 4, Colour Selection

Description in Line-by-Line Mode.