R8C14 Datasheet, PDF (255/277 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / R8C/Tiny SERIES

R8C/14 Group, R8C/15 Group
20. Precautions
20.6 Clock Synchronous Serial I/O (SSU) with Chip Select
20.6.1 Access Registers Associated with SSU
After the conditions of “3 instructions or more after writing to the registers associated with SSU
(00B8h to 00BFh)“ or “4 cycles or more after writing to them” are met, read those registers.
• An example to wait for 3 instructions or more
Program Example
MOV.B
#00h,00BBh
NOP
NOP
NOP
MOV.B
00BBh,R0L
• An example to wait for 4 cycles or more
Program Example
BCLR
4,00BBh
JMP.B
NEXT
NEXT:
BEST
3,00BBh
; Set the SSER register to “00h”.
: Disable transmit
: Enable receive
Rev.2.10 Jan 19, 2006 Page 243 of 253
REJ09B0164-0210