Register Descriptions - Renesas H8S/2100 Series Hardware Manual

Section 15 Serial Communication Interface (SCI)
15.3

Register Descriptions

The SCI has the following registers for each channel. Some bits in the serial mode register (SMR),
serial status register (SSR), and serial control register (SCR) have different functions in different
modes  normal serial communication interface mode and smart card interface mode; therefore,
the bits are described separately for each mode in the corresponding register sections.
Table 15.2 Register Configuration
Channel Register Name
Channel 0 Serial mode register_1
Bit rate register_1
Serial control register_1
Transmit data register_1
Serial status register_1
Receive data register_1
Smart card mode register_1
Channel 1 Serial mode register_2
Bit rate register_2
Serial control register_2
Transmit data register_2
Serial status register_2
Receive data register_2
Smart card mode register_2
Rev. 1.00 Apr. 28, 2008 Page 406 of 994
REJ09B0452-0100
Abbreviation R/W
SMR_1 R/W
BRR_1 R/W
SCR_1 R/W
TDR_1 R/W
SSR_1 R/W
RDR_1 R
SCMR_1 R/W
SMR_2 R/W
BRR_2 R/W
SCR_2 R/W
TDR_2 R/W
SSR_2 R/W
RDR_2 R
SCMR_2 R/W
Initial Data Bus
Value Address Width
H'00 H'FF88 8
H'FF H'FF89 8
H'00 H'FF8A 8
H'FF H'FF8B 8
H'84 H'FF8C 8
H'00 H'FF8D 8
H'F2 H'FF8E 8
H'00 H'FFA0 8
H'FF H'FFA1 8
H'00 H'FFA2 8
H'FF H'FFA3 8
H'84 H'FFA4 8
H'00 H'FFA5 8
H'F2 H'FFA6 8