AN3255

Doc ID 17784 Rev 1

21/24

B.1

The Page Write function performs write accesses to the CR14 registers. Its parameters are

the buffer containing the bytes to be written to the CR14, the CR14 write address and the

number of bytes to be written.

Figure 6 shows the detailed flowchart of the I2C_Page_Write function.

Figure 6.

Start

I²C bus busy ?

YES

NO

Send

START condition

START condition

generated ?

YES

NO

Send

CR14 Device Select Code

with R/W=0

END of Address

transmission ?

Send register

write address

Data byte transfer

succeeded ?

Number of data

to be written > 0 ?

Send Data byte

Data byte transfer

succeeded ?

Generate

STOP condition

END

NO

YES

NO

YES

YES

NO

Number of data

to be written --

ai18402