3. Pin configuration
Table 10-4 shows the SCI3 pin configuration.
Table 10-4 Pin Configuration
Name
Abbrev.
SCK3X
I/O
Function
SCI3 clock
I/O
SCI3 clock input/output
SCI3 receive data input
SCI3 transmit data output
SCI3 receive data input
RXD3X
Input
Output
SCI3 transmit data output TXD3X
4. Register configuration
Table 10-5 shows the SCI3 register configuration.
Table 10-5 Registers
Name
Abbrev.
SMR
R/W
Initial Value
H'00
H'FF
H'00
H'FF
H'84
H'00
—
Address
H'FFA8/FF98
H'FFA9/FF99
H'FFAA/FF9A
H'FFAB/FF9B
H'FFAC/FF9C
H'FFAD/FF9D
—
Serial mode register
Bit rate register
R/W
BRR
R/W
Serial control register 3
Transmit data register
Serial data register
Receive data register
Transmit shift register
Receive shift register
Bit rate counter
SCR3
TDR
R/W
R/W
SSR
R/W
RDR
R
TSR
Protected
Protected
Protected
R/W
RSR
—
—
BRC
—
—
Clock stop register 1
Serial port control register
CKSTPR1
SPCR
H'FF
H'C0
H'FFFA
R/W
H'FF91
269
ETC [ ETC ]
