3069RF-ZTAT Datasheet, PDF (479/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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, control the transmitter and receiver
sections, and specify switching between the serial communication interface and smart card
interface.
Table 13.2 SCI Registers
Channel
Address*¹ Name
Abbreviation
0
H'FFFB0 Serial mode register
SMR
H'FFFB1 Bit rate register
BRR
H'FFFB2 Serial control register
SCR
H'FFFB3 Transmit data register
TDR
H'FFFB4 Serial status register
SSR
H'FFFB5 Receive data register
RDR
H'FFFB6 Smart card mode register SCMR
1
H'FFFB8 Serial mode register
SMR
H'FFFB9 Bit rate register
BRR
H'FFFBA Serial control register
SCR
H'FFFBB Transmit data register
TDR
H'FFFBC Serial status register
SSR
H'FFFBD Receive data register
RDR
H'FFFBE Smart card mode register SCMR
2
H'FFFC0 Serial mode register
SMR
H'FFFC1 Bit rate register
BRR
H'FFFC2 Serial control register
SCR
H'FFFC3 Transmit data register
TDR
H'FFFC4 Serial status register
SSR
H'FFFC5 Receive data register
RDR
H'FFFC6 Smart card mode register SCMR
Notes: 1. Indicates the lower 20 bits of the address in advanced mode.
2. Only 0 can be written, to clear flags.
R/W Initial Value
R/W H'00
R/W H'FF
R/W H'00
R/W H'FF
R/(W)*² H'84
R
H'00
R/W H'F2
R/W H'00
R/W H'FF
R/W H'00
R/W H'FF
R/(W)*² H'84
R
H'00
R/W H'F2
R/W H'00
R/W H'FF
R/W H'00
R/W H'FF
R/(W)*² H'84
R
H'00
R/W H'F2
Rev. 5.0, 09/04, page 457 of 978