hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 397

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Bit 5—P4
This bit selects whether pin P4
Bit 5
SPC32
0
1
Note: * Set the TE bit in SCR3 after setting this bit to 1.
Bit 4—Reserved
Bit 4 is reserved; only 0 can be written to this bit.
Bit 3—TXD
Bit 3 specifies whether or not TXD
Bit 3
SCINV3
0
1
Bit 2—RXD
Bit 2 specifies whether or not RXD
Bit 2
SCINV2
0
1
Bits 1 and 0—Reserved
Bits 1 and 0 are reserved; only 0 can written to these bits.
2
/TXD
32
32
Description
Functions as P4
Functions as TXD
Description
TXD
TXD
Description
RXD
RXD
Pin Output Data Inversion Switch
Pin Input Data Inversion Switch
32
32
32
32
32
Pin Function Switch (SPC32)
output data is not inverted
output data is inverted
input data is not inverted
input data is inverted
2
2
/TXD
I/O pin
32
output pin *
32
32
32
pin output data is to be inverted.
pin input data is to be inverted.
is used as P4
2
or as TXD
Section 10 Serial Communication Interface
Rev. 7.00 Mar 10, 2005 page 355 of 652
32
.
REJ09B0042-0700
(initial value)
(initial value)
(initial value)