MT9V403 datasheet(9/33 Pages) MICRON

9 / 33 page

1/2-INCH VGA (WITH FREEZE-FRAME) CMOS

ACTIVE-PIXEL DIGITAL IMAGE SENSOR

09005aef80c07280

Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT9V403_DS.fm - Rev. B 1/04 EN

Figure 12: Slave Mode Block Diagram

Simultaneous Slave Mode

There are two possible operation methods for slave

mode: simultaneous slave and sequential slave mode.

The method of operation selected is determined by the

means in which the user supplies the control signals.

In simultaneous slave mode the exposure period

occurs during readout. The row and frame synchroni-

zation waveforms are shown in Figures 13 and 14,

respectively. This is the fastest mode of operation since

the exposure and readout are happening in parallel

rather than sequentially. The PG_N, TX_N, and RES-

MEM pulses should have a minimum duration of 338

clock cycles and be applied between the 100th and

600th clocks of a given row.

Row Counter

(1 to 502 MAX)

Row Sequencer

(1 to 671)

Column Counter

(1 to 667 MAX)

Two-Wire

Serial

Interface

TX_N

RESMEM

PG_N

FRAME_SYNC_N

ROW_STRT

CLEAR

Reg14

LD_SHFT_N

SYSCLK

Output(9:0)

667 x a10

Output SRAM (x2)

Row Driver

Pixel Array

Column

Processing

Circuitry

(PGA, ADC)

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