SH7750_08 Datasheet, PDF (907/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 18 I/O Ports
Bit 0—Serial Port Break Data (SPB2DT): Specifies the serial port RxD2 pin input data and
TxD2 pin output data. The TxD2 pin output condition is specified by the SPB2IO bit (see the
description of bit 1, SPB2IO, for details). When the TxD2 pin is designated as an output, the value
of the SPB2DT bit is output to the TxD2 pin. The RxD2 pin value is read from the SPB2DT bit
regardless of the value of the SPB2IO bit. The initial value of this bit after a power-on reset or
manual reset is undefined.
Bit 0: SPB2DT
0
1
Description
Input/output data is low-level
Input/output data is high-level
Rev.7.00 Oct. 10, 2008 Page 823 of 1074
REJ09B0366-0700