HD6413002 Datasheet, PDF (654/700 Pages) Renesas Technology Corp – High-performance single-chip microcontroller

SCR—Serial Control Register
H'B2
SCI0
Bit
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE MPIE TEIE CKE1 CKE0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock enable 1 and 0
Bit 1 Bit 0
CKE1 CKE0 Clock Selection and Output
0 0 Asynchronous mode Internal clock, SCK pin available for generic
input/output
Synchronous mode Internal clock, SCK pin used for serial clock output
1 Asynchronous mode Internal clock, SCK pin used for clock output
Synchronous mode Internal clock, SCK pin used for serial clock output
1 0 Asynchronous mode External clock, SCK pin used for clock input
Synchronous mode External clock, SCK pin used for serial clock input
1 Asynchronous mode External clock, SCK pin used for clock input
Synchronous mode External clock, SCK pin used for serial clock input
Transmit-end interrupt enable
0 Transmit-end interrupt requests (TEI) are disabled
1 Transmit-end interrupt requests (TEI) are enabled
Multiprocessor interrupt enable
0 Multiprocessor interrupts are disabled (normal receive operation)
1 Multiprocessor interrupts are enabled
Transmit enable
0 Transmitting is disabled
1 Transmitting is enabled
Receive enable
0 Transmitting is disabled
1 Transmitting is enabled
Receive interrupt enable
0 Receive-end (RXI) and receive-error (ERI) interrupt requests are disabled
1 Receive-end (RXI) and receive-error (ERI) interrupt requests are enabled
Transmit interrupt enable
0 Transmit-data-empty interrupt request (TXI) is disabled
1 Transmit-data-empty interrupt request (TXI) is enabled
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