SH7641 Datasheet, PDF (768/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 19 Serial Communication Interface with FIFO (SCIF)
Bit
15 to 8
Bit Name
—
7
RTSIO
6
RTSDT
5
CTSIO
4
CTSDT
Initial
value
All 0
0
1
0
1
R/W Description
R Reserved
These bits are always read as 0. The write value should
always be 0.
R/W RTS Port Input/Output
Indicates the input or output of RTS pin. When RTS pin
is used as port outputting the RTSDT bit, the MCE bit of
FIFO control register (SCFCR) should be set to 0.
0: Not output the RTSDT bit to RTS pin
1: Output the RTSDT bit to RTS pin
R/W RTS Port Data
Indicates the data of RTS pin used as port. Input/output
is specified by RTSIO bit. When output, the value of
RTSDT bit is outputted to RTS pin. Whenever input or
output, RTS pin status is read from RTSDT bit.
However Port Function of PFC (Pin Function Controller)
must be set to RTS input/output.
0: Input/output data is low level
1: Input/output data is high level
R/W CTS Port Input/Output
Indicates the input or output of CTS pin. When CTS pin
is used as port outputting the CTSDT bit, the MCE bit of
FIFO control register (SCFCR) should be set to 0.
0: Not output the CTSDT bit to CTS pin
1: Output the CTSDT bit to CTS pin
R/W CTS Port Data
Indicates the data of CTS pin used as port. Input/output
is specified by CTSIO bit. When output, the value of
CTSDT bit is outputted to CTS pin. Whenever input or
output, CTS pin status is read from CTSDT bit.
However Port Function of PFC (Pin Function Controller)
must be set to CTS input/output.
0: Input/output data is low level
1: Input/output data is high level
Rev. 4.00 Sep. 14, 2005 Page 718 of 982
REJ09B0023-0400