H83502 Datasheet, PDF (352/386 Pages) Renesas Technology Corp – single-chip microcomputers

SCR—Serial Control Register
H'DA
SCI0
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE MPIE TEIE CKE1 CKE0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock Enable 0
0 The SCK pin is not used by the SCI
1 The SCK pin is used for serial clock output
Clock Enable 1
0 Internal clock source is selected
1 External clock source is selected
Transmit End Interrupt Enable
0 TSR-empty interrupt request is disabled
1 TSR-empty interrupt request is enabled
Multiprocessor Interrupt Enable
0 Multiprocessor receive interrupt function is disabled
1 Multiprocessor receive interrupt function is enabled
Receive Enable
0 The receive function is disabled
1 The receive function is enabled
Transmit Enable
0 The transmit function is disabled
1 The transmit function is enabled
Receive Interrupt Enable
0 The receive-end interrupt (RXI) and receive-error interrupt (ERI)
requests are disabled
1 The receive-end interrupt (RXI) and receive-error interrupt (ERI)
requests are enabled
Transmit Interrupt Enable
0 The TDR-empty interrupt request (TXI) is disabled
1 The TDR-empty interrupt request (TXI) is enabled
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