HD6473032F16 Datasheet, PDF (468/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Section 13 Serial Communication Interface
13.1.3 Pin Configuration
The SCI has serial pins for each channel as listed in table 13.1.
Table 13.1 SCI Pins
Channel
0
1
Name
Serial clock pin
Receive data pin
Transmit data pin
Serial clock pin
Receive data pin
Transmit data pin
Abbreviation
SCK0
RxD0
TxD0
SCK1
RxD1
TxD1
I/O
Input/output
Input
Output
Input/output
Input
Output
Function
SCI0 clock input/output
SCI0 receive data input
SCI0 transmit data output
SCI1 clock input/output
SCI1 receive data input
SCI1 transmit data output
13.1.4 Register Configuration
The SCI has internal registers as listed in table 13.2. These registers select asynchronous or
synchronous mode, specify the data format and bit rate, and control the transmitter and receiver
sections.
Table 13.2 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
Rev. 3.00 Mar 21, 2006 page 438 of 814
REJ09B0302-0300