Hitachi SH7751 Hardware Manual page 765

Bit 6—Serial Port RTS Port Data (RTSDT): Specifies the serial port
data. Input or output is specified by the RTSIO pin (see the description of bit 7, RTSIO, for

details). When the
 
pin. The
bit. The initial value of this bit after a power-on reset or manual reset is undefined.
Bit 6: RTSDT
0
1
Bit 5—Serial Port CTS Port I/O (CTSIO): Specifies serial port


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
Bit 4—Serial Port CTS Port Data (CTSDT): Specifies the serial port
data. Input or output is specified by the CTSIO pin (see the description of bit 5, CTSIO, for


details). When the



pin. The
bit. The initial value of this bit after a power-on reset or manual reset is undefined.
Bit 4: CTSDT
0
1
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
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
pin is designated as an output, the value of the RTSDT bit is output to the
pin value is read from the RTSDT bit regardless of the value of the RTSIO
Description
Input/output data is low-level
Input/output data is high-level
Description
CTSDT bit value is not output to the
CTSDT bit value is output to the
pin is designated as an output, the value of the CTSDT bit is output to the
pin value is read from the CTSDT bit regardless of the value of the CTSIO
Description
Input/output data is low-level
Input/output data is high-level
Description
Shows that the value of the SCKDT bit is not output to the SCK2 pin
Shows that the value of the SCKDT bit is output to the SCK2 pin

pin input/output


pin input/output. When

pin

pin


pin input/output
(Initial value)
(Initial value)