Toshiba TLCS-900/L1 Series Manual page 36

Example:
The STOP mode is entered when the low-frequency operates, and high-frequency
operates after releasing due to NMI.
Address
SYSCR0 EQU
SYSCR1 EQU
SYSCR2 EQU
8FFDH LD
9000H LD
9002H LD
9005H HALT
NMI
9006H LD
− : No change
Note: When different modes are used before and after STOP mode as the above mentioned,
there is possible to release the HALT mode without changing the operation mode by
acceptance of the halt release interrupt request during execution of HALT instruction
(during 6 states). In the system which accepts the interrupts during execution HALT
instruction, set the same operation mode before and after the STOP mode.
00E0H
00E1H
00E2H
(SYSCR1), 08H ; f
SYS
(SYSCR2), X−1001−1B ; Sets warm-up time to 2
(SYSCR0), 011000 − −B
; Operates high frequency after released
XX, XX
91C824-34
= fs/2
14
/f
OSCH
Clears and starts hit
warm-up timer
(High frequency)
End
NMI Interrupt routine
RETI
TMP91C824
2008-02-20