Starts SCI master transmission (simple I2C mode).
Remark 1. This API function handles SCI master transmission to the slave device at the address specified by the argument adr and the R/W#bit. SCI master transmission in byte units is repeated the number of times specified by the argument tx_num from the buffer at the location specified by the argument tx_buf.
Remark 2. This API function internally calls R_SCIn_IIC_StartCondition to handle processing to start SCI master transmission.
Remark 3. When performing a SCI master transmission, R_SCIn_Start must be called before this API function is called.
[Syntax]
void R_SCIn_IIC_Master_Send ( uint8_t adr, uint8_t * const tx_buf, uint16_t tx_num );
Remark n is the channel number.
[Argument(s)]
|
I/O |
Argument |
Description |
|
I |
uint8_t adr; |
Slave address |
|
I |
uint8_t * const tx_buf; |
Pointer to a buffer storing the transmission data |
|
I |
uint16_t tx_num; |
Total amount of data to send |
[Return value]
None.