SH7146 Datasheet, PDF (636/1022 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 14 Serial Communication Interface (SCI)
14.6 Serial Port Register (SCSPTR) and SCI Pins
The relationship between SCSPTR and the SCI pins is shown in figures 14.19 and 14.20.
SCK
Reset
R
QD
SCKIO
C
Bit 3
SPTRW
Reset
R
QD
SCKDT
C
Bit 2
SPTRW
Internal data bus
Clock output enable signal*
Serial clock output signal*
Serial clock input signal*
Serial input enable signal*
[Legend]
SPTRW: SCSPTR write
Note: * These signals control the SCK pin according to the settings of the C/A bit in SCSMR
and bits CKE1 and CKE0 in SCSCR.
Figure 14.19 SCKIO Bit, SCKDT Bit, and SCK Pin
Rev. 3.00 May 17, 2007 Page 592 of 974
REJ09B0229-0300