SH7261 Datasheet, PDF (735/1348 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 16 Serial Communication Interface with FIFO (SCIF)
16.3.11 Serial Port Register (SCSPTR)
SCSPTR controls input/output and data of pins multiplexed to SCIF function. Bits 3 and 2 can
control input/output data of SCK pin. Bits 1 and 0 can input data from RxD pin and output data to
TxD pin, so they control break of serial transmitting/receiving.
The CPU can always read and write to SCSPTR. SCSPTR is initialized to H'0050 by a power-on
reset or in deep standby mode.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
—
—
—
—
—
SCKIO
SCKDT
SPB2
IO
SPB2
DT
Initial value: 0
0
0
0
0
0
0
0
0
1
0
1
0—0—
R/W: R R R R R R R R R R R R R/W R/W R/W R/W
Bit
15 to 7
Bit Name
—
6
—
5
—
4
—
3
SCKIO
Initial
Value
All 0
1
0
1
0
R/W Description
R Reserved
These bits are always read as 0. The write value should
always be 0.
R Reserved
This bit is always read as 1. The write value should
always be 1.
R Reserved
This bit is always read as 0. The write value should
always be 0.
R Reserved
This bit is always read as 1. The write value should
always be 1.
R/W SCK Port Input/Output
Indicates input or output of the serial port SCK pin.
When the SCK pin is actually used as a port outputting
the SCKDT bit value, the CKE[1:0] bits in SCSCR
should be cleared to 0.
0: SCKDT bit value not output to SCK pin
1: SCKDT bit value output to SCK pin
Rev. 2.00 Sep. 07, 2007 Page 703 of 1312
REJ09B0320-0200