HD6417751 Datasheet, PDF (766/1105 Pages) Renesas Technology Corp – SuperH RISC engine

Bit 6—Serial Port RTS Port Data (RTSDT): Specifies the serial port #%$ pin input/output
data. Input or output is specified by the RTSIO pin (see the description of bit 7, RTSIO, for
details). When the #%$ pin is designated as an output, the value of the RTSDT bit is output to the
#%$ pin. The #%$ pin value is read from the RTSDT bit regardless of the value of the RTSIO
bit. The initial value of this bit after a power-on reset or manual reset is undefined.
Bit 6: RTSDT
0
1
Description
Input/output data is low-level
Input/output data is high-level
Bit 5—Serial Port CTS Port I/O (CTSIO): Specifies serial port %$ pin input/output. When
the %$ pin is actually set as a port output pin and outputs the value set by the CTSDT bit, the
MCE bit in SCFCR2 should be cleared to 0.
Bit 5: CTSIO
0
1
Description
CTSDT bit value is not output to the %$ pin
CTSDT bit value is output to the %$ pin
(Initial value)
Bit 4—Serial Port CTS Port Data (CTSDT): Specifies the serial port %$ pin input/output
data. Input or output is specified by the CTSIO pin (see the description of bit 5, CTSIO, for
details). When the %$ pin is designated as an output, the value of the CTSDT bit is output to the
%$ pin. The %$ pin value is read from the CTSDT bit regardless of the value of the CTSIO
bit. The initial value of this bit after a power-on reset or manual reset is undefined.
Bit 4: CTSDT
0
1
Description
Input/output data is low-level
Input/output data is high-level
Bit 3—Serial Port Clock Port I/O (SCKIO): Sets the I/O for the SCK2 pin serial port. To
actually set the SCK2 pin as the port output pin and output the value set in the SCKDT bit, set the
CKE1 and CKE0 bits of the SCSCR2 register to 0.
Bit 3: SCKIO
0
1
Description
Shows that the value of the SCKDT bit is not output to the SCK2 pin
(Initial value)
Shows that the value of the SCKDT bit is output to the SCK2 pin
Bit 2—Serial Port Clock Port Data (SCKDT): Specifies the I/O data for the SCK2 pin serial
port. The SCKIO bit specified input or output. (See bit 3: SCKIO, for details.) When set for
output, the value of the SCKDT bit is output to the SCK2 pin. Regardless of the value of the
Rev. 3.0, 04/02, page 726 of 1064