TMPM330 - Keil

Under development
I/O interface mode with SCLK input:
The following example describes the case a 4-byte data stream is received:
TMPM330 (rev 0.4) 9-17
TMPM330
SC0RFC = 10: Clears receive FIFO and sets the condition of interrupt generation
SC0RFC = 00: Sets the interrupt to be generated at fill level 4.
SC0FCNF = 10101: Automatically allows continued reception after reaching the fill level.
The number of bytes to be used in the receive FIFO is the maximum allowable number.
In this condition, 4-byte data reception may be initiated by setting the half duplex transmission
mode and writing “1” to the RXE bit. After receiving 4 bytes, receive FIFO interrupt is generated.
This setting enables the next data reception as well. The next 4 bytes can be received before all
the data is read from FIFO.
Receive buffer 1
Receive buffer 2
RX FIFO
Receive
interrupt
RBFLL
RXE
1 byte
2 byte
1 byte
1 byte
3 byte
2 byte
Fig. 9-4 Receive FIFO Operation
4 byte
3 byte
2 byte 3 byte
1 byte 2 byte
1 byte
4 byte
4 byte
3 byte
2 byte
1 byte
Serial Channel (SIO)