M16C1N Datasheet, PDF (218/238 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/10 SERIES

M16C/1N Group
20. Precautionary Notes in Using the Device
4. After returning from stop mode, an unexpected operation may occur (for example, undefined in-
struction interrupt, BRK instruction interrupt, etc.).
Execute a JMP.B instruction after an instruction to write data to the all clock stop control bit. A
program example is described as follows:
Code examples are shown below.
Example 1:
BSET 0,
JMP.B
L1:
NOP
NOP
NOP
NOP
CM1
L1
; writing to the all clock stop control bit to "1" (stop mode)
Example 2:
MOV.B:S
JMP.B
L1:
NOP
NOP
NOP
NOP
#21h, CM1 ; writing to the all clock stop control bit to "1" (stop mode)
L1
Rev.1.00 Oct 20, 2004 page 206 of 222
REJ090007-0100Z