Toshiba CS6910CL User Manual

Page 13

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CCD color camera CS6910CL Specification (Rev.A)

The contents described in this document may be changed without prior notice.

11

D4134419A

(2) Command Communication Protocol

The command communication protocol is the teli standard method (method in which parameters

are set in the registers in the camera).

In command send/receive operation, hexadecimal address and data are converted to ASCII data.

All ASCII alphabetic characters used are uppercase characters.

Write to a register

To write data in a register, send a command, as follows:

STX(0x02)

Addr. (upper)

Addr. (lower)

Data (upper)

Data (lower)

ETX(0x03)

For example, to write data 0x25 to address 0x75, send a command, as follows:

STX(0x02)

“7”(0x37)

“5”(0x35)

“2”(0x32)

“5”(0x35)

ETX(0x03)

The camera responds to the write command with No Error (ACK) or Error (NAK), as follows:

STX(0x02)

ACK(0x06)

ETX(0x03)

STX(0x02)

NAK(0x15)

ETX(0x03)

Reading the register

To read data from a register, send "R" and "Q" following the address.

For example, to read data in address 0x6D, send a command, as follows:

STX(0x02)

“6”(0x36)

“D”(0x44)

“R”(0x52)

“Q”(0x51)

ETX(0x03)

The camera responds to the read request, as follows:

STX(0x02)

Data (upper)

Data (lower)

ETX(0x03)

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