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Rev.1.00 2007.11.1
REC10B0002-0100
23
__BasicReceivingStatusRead
Synopsis
<Read receive status>
unsigned int __BasicReceivingStatusRead(unsigned long data)
data Setup data
Description
Returns the receive status of serial communication.
[data]
For data, the following values can be set.
RAPI_COM1 UART0 RAPI_COM2 UART1
RAPI_COM3 UART2 RAPI_COM4 SI/O3
RAPI_COM5 SI/O4
Return value
The receive status of serial communication is returned. The returned value is one of
the following.
(UART0, UART1, UART2)
RAPI_RX_INCOMPLETE Reception not complete yet.
Other than above Reception complete. The value read from the UARTi receive
buffer register (i = 0 to 2).
(SI/O3, SI/O4)
RAPI_RX_INCOMPLETE Reception not complete yet.
Other than above Reception complete. Low-order 8 bits: The value read from the
SI/Oi transmit/receive register (i = 3, 4).
Functionality
Serial I/O
Reference
__BasicStartSerialReceiving, __BasicStopSerialReceiving
Remark
•
If an undefined value is specified in the argument, operation of the API cannot be
guaranteed.
Program example
#include ”rapi_sif_m16c_62p”
void func( void )
{
unsigned int rcv_data;
..........
rcv_data = __BasicReceivingStatusRead( RAPI_COM1 );
..........
}