Renesas R5S72621 User Manual
Section 16 Renesas Serial Peripheral Interface
R01UH0134EJ0400 Rev. 4.00
Page 805 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
16.3.14
Buffer Control Register (SPBFCR)
SPBFCR resets the number of data units in the transmit buffer (SPTX) or receive buffer (SPRX)
and sets the number of triggering data units.
and sets the number of triggering data units.
7
6
5
4
3
2
1
0
Bit:
Initial value:
R/W:
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
TXRST RXRST
TXTRG[1:0]
⎯
RXTRG[2:0]
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
7
TXRST
0
R/W
Transmit Buffer Data Reset
Resets the transmit buffer to an empty state.
Transmit data in the transmit buffer becomes invalid
when this bit is set to 1.
Transmit data in the transmit buffer becomes invalid
when this bit is set to 1.
0: Disables the reset operation*.
1: Enables the reset operation
Note: The reset operation is performed after a
power-on reset.
6
RXRST
0
R/W
Receive Buffer Data Reset
Resets the receive buffer to an empty state. Receive
data in the receive buffer becomes invalid when this
bit is set to 1.
data in the receive buffer becomes invalid when this
bit is set to 1.
0: Disables the reset operation*.
1: Enables the reset operation
Note: The reset operation is performed after a
power-on reset.