HD6473032F Datasheet, PDF (329/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

11.1.3 Input/Output Pins
The SCI has serial pins for each channel as listed in table 11-1.
Table 11-1 SCI Pins
Name
Serial clock pin
Receive data pin
Transmit data pin
Abbreviation
SCK
RxD
TxD
I/O
Input/output
Input
Output
Function
SCI clock input/output
SCI receive data input
SCI transmit data output
11.1.4 Register Configuration
The SCI has internal registers as listed in table 11-2. These registers select asynchronous or
synchronous mode, specify the data format and bit rate, and control the transmitter and receiver
sections.
Table 11-2 Registers
Channel Address^*1 Name
0
H'FFB0
Serial mode register
H'FFB1
Bit rate register
H'FFB2
Serial control register
H'FFB3
Transmit data register
H'FFB4
Serial status register
H'FFB5
Receive data register
1
H'FFB8
Serial mode register
H'FFB9
Bit rate register
H'FFBA
Serial control register
H'FFBB
Transmit data register
H'FFBC
Serial status register
H'FFBD
Receive data register
Notes: 1. Lower 16 bits of the address.
2. Only 0 can be written, to clear flags.
Abbreviation
SMR
BRR
SCR
TDR
SSR
RDR
SMR
BRR
SCR
TDR
SSR
RDR
R/W
R/W
R/W
R/W
R/W
R/(W)^*2
R
R/W
R/W
R/W
R/W
R/(W)^*2
R
Initial Value
H'00
H'FF
H'00
H'FF
H'84
H'00
H'00
H'FF
H'00
H'FF
H'84
H'00
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