813
SCR0—Serial Control Register 0
H'FF7A
Smart Card Interface 0
7
TIE
0
R/W
6
RIE
0
R/W
5
TE
0
R/W
4
RE
0
R/W
3
MPIE
0
R/W
0
CKE0
0
R/W
2
TEIE
0
R/W
1
CKE1
0
R/W
SMCR
SMIF
0
1
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
1
1
0
1
0
1
0
1
SMR
C/
A
,GM CKE1
CKE0
See SCI specification
SCK pin function
Clock Enable
SCR setting
0
1
Transmit end interrupt (TEI) request disabled
Transmit end interrupt (TEI) request enabled
Transmit End Interrupt Enable
0
Multiprocessor interrupts disabled
[Clearing conditions]
When the MPIE bit is cleared to 0
When MPB= 1 data is received
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
Multiprocessor Interrupt Enable
0
1
Reception disabled
Reception enabled
Receive Enable
0
1
Transmission disabled
Transmission enabled
Transmit Enable
0
Receive data full interrupt (RXI) request and
receive error interrupt (ERI) request disabled
Receive data full interrupt (RXI) request and
receive error interrupt (ERI) request enabled
Receive Interrupt Enable
0
1
Transmit data empty interrupt (TXI) requests disabled
Transmit data empty interrupt (TXI) requests enabled
Transmit Interrupt Enable
Bit
Initial value
Read/Write
:
:
:
1
1
Operates as port input
pin
Clock output as SCK
output pin
Fixed-low output as
SCK output pin
Clock output as SCK
output pin
Fixed-high output as
SCK output pin
Clock output as SCK
output pin