TMP91C824
91C824-24
(2)
Change / Stop Control
(OK)
DFM use mode (f
DFM
)
→
High frequency oscillator operation mode(f
OSCH
)
→
DFM Stop
→
Low frequency oscillator operation mode(f
s
)
→
High frequency oscillator stop
LD
(DFMCR0),11------B
;
Change the system clock f
DFM
to f
OSCH
LD
(DFMCR0),00------B
; DFM stop
LD
(SYSCR1), ----1---B
; Change the system clock f
OSCH
to fs
LD
(SYSCR0), 0-------B
; High frequency oscillator stop
(NG)
DFM use mode (f
DFM
)
→
Low frequency oscillator operation mode(f
s
)
→
DFM stop
→
High frequency oscillator stop
LD
(SYSCR1), ----1---B
; Change the system clock f
DFM
to f
S
LD
(DFMCR0),11------B
; Change the internal clock (f
C
) f
DFM to
f
OSCH
LD
(DFMCR0),00------B
; DFM stop
LD
(SYSCR0), 0-------B
; High frequency oscillator stop
(OK)
DFM use mode (f
DFM
)
→
Set the STOP mode
→
High frequency oscillator operation mode (f
OSCH
)
→
DFM stop
→
HALT(High frequency
oscillator stop)
LD
(SYSCR2), ----01--B
; Set the STOP mode
(This command can execute before use of DFM)
LD
(DFMCR0),11------B
; Change the system clock f
DFM
to f
OSCH
LD
(DFM CR0),00------B
; DFM stop
HALT
; Shift to STOP mode
(NG)
DFM use mode (f
DFM
)
→
Set the STOP mode
→
HALT(High frequency oscillator stop)
LD
(SYSCR2), ----01--B
; Set the STOP mode
(This command can execute before use of DFM)
HALT
; Shift to STOP mode