HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 271

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

14.1.3 Input and Output Pins
Table 14-1 lists the input and output pins used by the SCI module.
Table 14-1 SCI Input/Output Pins
Channel
1
2
14.1.4 Register Configuration
Table 14-2 lists the SCI registers.
Table 14-2 SCI Registers
Channel
1
2
* Software can write a 0 to clear the status flag bits, but cannot write a 1.
Name
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
Serial control register
Serial status register
Bit rate register
Receive shift register
Receive data register
Transmit shift register
Transmit data register
Serial mode register
Serial control register
Serial status register
Bit rate register
Name
Serial clock
Receive data
Transmit data
Serial clock
Receive data
Transmit data
Abbreviation
SCK
RXD
TXD
SCK
RXD
TXD
1
2
1
2
1
2
Abbreviation
RSR
RDR
TSR
TDR
SMR
SCR
SSR
BRR
RSR
RDR
TSR
TDR
SMR
SCR
SSR
BRR
257
I/O
Input/output
Input
Output
Input/output
Input
Output
R/W
—
R
—
R/W
R/W
R/W
R/(W)*
R/W
—
R
—
R/W
R/W
R/W
R/(W)*
R/W
Function
Serial clock input and output.
Receive data input.
Transmit data output.
Serial clock input and output.
Receive data input.
Transmit data output.
Initial Value
—
H'00
—
H'FF
H'04
H'0C
H'87
H'FF
—
H'00
—
H'FF
H'04
H'0C
H'87
H'FF
Address
—
H'FEDD
—
H'FEDB
H'FED8
H'FEDA
H'FEDC
H'FED9
—
H'FEF5
—
H'FEF3
H'FEF0
H'FEF2
H'FEF4
H'FEF1