EPC635 datasheet(56/97 Pages) EPC

56 / 97 page

CPU on I2C: Set epc635 registers

for b&w application e.g. ambient-light

CPU on I2C or HW: Set SHUTTER

epc635: Integration of DCS frame

Read DCS frame

Perform grayscale measurement

END grayscale measurement

CPU on I2C: Set epc635 registers

for TOF application e.g. 4x DCS

CPU: Set frame counter = DCS0

CPU on I2C or HW: Set SHUTTER

epc635: Integration of DCS frame

Read DCS frame

Frame counter > last frame

e.g. DCS3

others

Perform TOF measurement

END TOF measurement

Figure 52: Generic sequences for the distance (TOF) and the grayscale measurement

CPU: Set column counter to first column e.g. C4 (even)

CPU: Increment column counter

CPU on TCMI: Wait for column ready

HSYNC = low

CPU on TCMI: Read pixel data & saturation flag

e.g. sample per negative DCLK transition

Column counter > last column

e.g. C163 (odd)

others

END Read row

START Read row

CPU: Set row counters to

last row in top pixel field e.g. R65 (odd)

CPU on TCMI: Wait for row ready

VSYNC = low or HSYNC = low

Read row: Bottom pixel field

CPU: Decrement row counter top pixel field

CPU: Increment row counter bottom pixel field

Read row: Top pixel field

Row counter < first row top pixel field

e.g. R6 (even)

others

START Read DCS frame

END Read DCS frame

Figure 53: Generic sequences to readout frames and row by row

The generic procedures to readout frames or rows are independently of the selected modes. The application is driven only by the TCMI in-

terface during these phases. To catch the begin of the frame, the application CPU has to wait after the measurement start until the integra-

Characteristics subject to change without notice

56 / 97

Datasheet_epc635-V1.02

EPC635 датащи(PDF) 56 Page - Espros Photonics corp

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