Renesas SH7709S Manual Do Utilizador

Rev. 5.00, 09/03, page 560 of 760

The IrDA has the internal registers shown in table 17.2.  These registers select IrDA or SCIF
mode, specify the data format and a bit rate, and control the transmit and receive units.

Serial mode register 1

SCSMR1

R/W

H'00

H'04000140
(H'A4000140)

*

2

8 bits

Bit rate register 1

SCBRR1

R/W

H'FF

H'04000142
(H'A4000142)

*

2

8 bits

Serial control register 1

SCSCR1

R/W

H'00

H'04000144
(H'A4000144)

*

2

8 bits

Transmit FIFO data register 1

SCFTDR1

W

—

H'04000146
(H'A4000146)

*

2

8 bits

Serial status register 1

SCSSR1

R/(W)

*

1

H'0060

H'04000148
(H'A4000148)

*

2

16 bits

Receive FIFO data register 1

SCFRDR1

R

Undefined

H'0400014A
(H'A400014A)

*

2

8 bits

FIFO control register 1

SCFCR1

R/W

H'00

H'0400014C
(H'A400014C)

*

2

8 bits

FIFO data count register 1

SCFDR1

R

H'0000

H'0400014E
(H'A400014E)

*

2

16 bits

Notes: These registers are located in area 1 of physical space. Therefore, when the cache is on,

either access these registers from the P2 area of logical space or else make an appropriate
setting using the MMU so that these registers are not cached.

1. Only 0 can be written to clear the flag.

2. When address translation by the MMU does not apply, the address in parentheses

should be used.