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TMP93CS44 데이터시트(PDF) 31 Page - Toshiba Semiconductor

부품명 TMP93CS44
상세설명  CMOS 16-Bit Microcontroller
PDF  224 Pages
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제조업체  TOSHIBA [Toshiba Semiconductor]
홈페이지  http://www.semicon.toshiba.co.jp/eng
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TMP93CS44 데이터시트(HTML) 31 Page - Toshiba Semiconductor

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TMP93CS44/S45
2004-02-10
93CS44-29
Table 3.3.6 The Example of Warm-up Time after Releasing the STOP Mode
Warm-up Time [ms]
Clock Operation Frequency
after the STOP Mode
WDMOD<WARM>
= 0WDMOD<WARM> = 1
Clock Frequency
fc
0.8192
3.2768
fc/2
1.6384
6.5536
fc/4
3.2768
13.1072
fc/8
6.5536
26.2144
fc/16
13.1072
52.4288
fc
= 20 MHz
fs
500
2000
fs
= 32.768 kHz
How to calculate the warm-up time
WDMOD<WARM> = 0:
Clock operation frequency after the 2
14/STOP mode.
WDMOD<WARM> = 1:
Clock operation frequency after the 2
16/STOP mode.
The NORMAL/SLOW mode selection is possible after released STOP mode. This is
selected by SYSCR0<RSYSCK>. Therefore, Setting to <RSYSCK>, <RXEN>,
<RXTEN> is necessary before “HALT” instruction is executed.
Setting example: The STOP mode is entered when the low-frequency (fs) operates, and after that
high-frequency operates after releasing by NMI .
Address
SYSCR0
EQU
006EH
SYSCR1
EQU
006FH
WDMOD
EQU
005CH
8FFDH
LD
(SYSCR1), 08H
; fSYS = fs/2.
9000H
RES
4, (WDMOD)
; Sets warm-up time to 214/fc.
9002H
LD
(SYSCR0),
−11000 − − B
; Operates high frequency after released.
9005H
HALT
9006H
LD
XX, XX
−: 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 8 states). In the
system which accepts the interrupts during execution “HALT” instruction, set the same
operation mode before and after the STOP mode.
Clears and starts warm-up timer.
(High frequency)
NMI
End
NMI
Interrupt routine.
RETI



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