SH7125_08 Datasheet, PDF (449/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 12 Serial Communication Interface (SCI)
Initial
Bit
Bit Name value
R/W Description
2
SPB1DT 0
R/W Clock Port Data in Serial Port
Specifies the data output through the SCK pin in the
serial port. Output should be enabled by the SPB1IO bit
(for details, refer to the SPB1IO bit description). When
output is enabled, the SPB1DT bit value is output
through the SCK pin.
0: Low level is output
1: High level is output
1

0
 Reserved
This bit is always read as 0. The write value should
always be 0.
0
SPB0DT 1
W Serial Port Break Data
Controls the TXD pins together with the TE bit in
SCSCR.
However, the TXD pin function should be selected with
the Pin Function Controller (PFC).
This bit is write-only bit. Undefined value is read.
Setting
value of
TE bit in
SCSCR
Setting
value of
SPB0DT
bit
TXD pin state
0
0
Low output
0
1
High output (initial state)
1
*
Transmit data output in accord
with serial core logic.
Note: * Don't care
Rev. 4.00 Jul. 25, 2008 Page 429 of 750
REJ09B0243-0400