Datasheet

Section 7 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 195 of 910
REJ09B0350-0300
7.3.3 Port Control Register 2 (PTCNT2)
PTCNT2 selects ports that also function as SCI input/output pins and controls the port
specification.
Bit Bit Name Initial Value R/W Description
7 ⎯ 0 R/W Reserved
The initial value should not be changed.
6 TxD2RS 0 R/W 0: TxD2 direct output
1: TxD2 inverted output
5 RxD2RS 0 R/W 0: RxD2 direct input
1: RxD2 inverted input
4 TxD1RS 0 R/W 0: TxD1 direct output
1: TxD1 inverted output
3 RxD1RS 0 R/W 0: RxD1 direct input
1: RxD1 inverted input
2 ⎯ 0 R/W Reserved
The initial value should not be changed.
1 PORTS 0 R/W 0: Existing port specification
1: New port specification
0 ⎯ 0 R/W Reserved
The initial value should not be changed.