SH7052 datasheet(468/919 Pages) RENESAS

468 / 919 page

442

14.1.4

Table 14.2 summarizes the SCI internal registers. These registers select the communication mode

(asynchronous or synchronous), specify the data format and bit rate, and control the transmitter

and receiver sections.

Table 14.2

Registers

Channel

Name

Abbreviation R/W

Initial

Value

Address*

Access

Size

Serial mode register 0

SMR0

R/W

H'00

H'FFFFF000

8, 16

Bit rate register 0

BRR0

R/W

H'FF

H'FFFFF001

Serial control register 0

SCR0

R/W

H'00

H'FFFFF002

Transmit data register 0

TDR0

R/W

H'FF

H'FFFFF003

Serial status register 0

SSR0

R/(W)*

H'84

H'FFFFF004

Receive data register 0

RDR0

H'00

H'FFFFF005

Serial direction control

SDCR0

R/W

H'F2

H'FFFFF006

Serial mode register 1

SMR1

R/W

H'00

H'FFFFF008

8, 16

Bit rate register 1

BRR1

R/W

H'FF

H'FFFFF009

Serial control register 1

SCR1

R/W

H'00

H'FFFFF00A

Transmit data register 1

TDR1

R/W

H'FF

H'FFFFF00B

Serial status register 1

SSR1

R/(W)*

H'84

H'FFFFF00C

Receive data register 1

RDR1

H'00

H'FFFFF00D

Serial direction control

SDCR1

R/W

H'F2

H'FFFFF00E

Serial mode register 2

SMR2

R/W

H'00

H'FFFFF010

8, 16

Bit rate register 2

BRR2

R/W

H'FF

H'FFFFF011

Serial control register 2

SCR2

R/W

H'00

H'FFFFF012

Transmit data register 2

TDR2

R/W

H'FF

H'FFFFF013

Serial status register 2

SSR2

R/(W)*

H'84

H'FFFFF014

Receive data register 2

RDR2

H'00

H'FFFFF015

Serial direction control

SDCR2

R/W

H'F2

H'FFFFF016

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