Hitachi H8S/2678 Series Reference Manual page 592

SCR0—Serial Control Register 0
Bit
TIE
Initial value
Read/Write R/W
Transmit Interrupt Enable
0 Transmit-data-empty interrupt (TXI) request disabled
1
7 6
RIE
0 0
R/W R/W
Transmit Enable
0 Transmission disabled
1 Transmission enabled
Receive Interrupt Enable
0 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request disabled
1 Receive-data-full interrupt (RXI) request and receive-error interrupt (ERI) request enabled
Transmit-data-empty interrupt (TXI) request enabled
H'FF7A
5 4
TE RE MPIE
0 0
R/W
Clock Enable
(In smart card interface mode, with bit 7 of SMR set to 1)
SCMR
SMIF
0
1
Transmit-End Interrupt Enable
0 Transmit-end interrupt (TEI) request disabled
1 Transmit-end interrupt (TEI) request enabled
Multiprocessor Interrupt Enable
0 Multiprocessor interrupts disabled
[Clearing conditions]
• When the MPIE bit is cleared to 0
• When data with MPB = 1 is received
1 Multiprocessor interrupts enabled
Receive interrupt (RXI) requests, receive-error interrupt (ERI)
requests, and setting of the RDRF, FER, and ORER flags in
SSR are disabled until data with the multiprocessor bit set to
1 is received
Receive Enable
0 Reception disabled
1 Reception enabled
Smart Card Interface 0
3 2
TEIE
0 0
R/W R/W
SMR SCR Setting
C/A, GM CKE1 CKE0
See the SCI specification
0 0 0 Operates as port I/O pin
1 Outputs clock as SCK
output pin
1 0 Operates as SCK output
pin, with output fixed low
1 Outputs clock as SCK
output pin
1 0 Operates as SCK output
pin, with output fixed high
1 Outputs clock as SCK
output pin
1 0
CKE1 CKE0
0 0
R/W R/W
SCK Pin Function
575