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参数资料
型号： TMP86C847UG
厂商： Toshiba Corporation
英文描述： Zener Diode; Application: General; Pd (mW): 500; Vz (V): 15.7 to 16.5; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述： 8位微控制器
文件页数： 35/160页
文件大小： 1541K
代理商： TMP86C847UG
Page 27
TMP86C847UG
(2)
Switching from SLOW1 mode to NORMAL2 mode
Note: After SYSCK is cleared to “0”, executing the instructions is continiued by the low-frequency clock
for the period synchronized with low-frequency and high-frequency clocks.
First, set SYSCR2<XEN> to turn on the high-frequency oscillation. When time for stabilization
(Warm up) has been taken by the timer/counter (TC4,TC3), clear SYSCR2<SYSCK> to switch the
main system clock to the high-frequency clock.
SLOW mode can also be released by inputting low level on the
RESET
pin. After releasing reset, the
operation mode is started from NORMAL1 mode.
Example :Switching from the SLOW1 mode to the NORMAL2 mode (fc = 16 MHz, warm-up time is 4.0 ms).
SET
(SYSCR2). 7
; SYSCR2<XEN>
←
1 (Starts high-frequency oscillation)
LD
(TC3CR), 63H
; Sets mode for TC4, 3 (16-bit mode, fc for source)
LD
(TC4CR), 05H
; Sets warming-up counter mode
LD
(TTREG4), 0F8H
; Sets warm-up time
DI
; IMF
←
0
SET
(EIRH). 1
; Enables INTTC4
EI
; IMF
←
1
SET
(TC4CR). 3
; Starts TC4, 3
:
PINTTC4:
CLR
(TC4CR). 3
; Stops TC4, 3
CLR
(SYSCR2). 5
; SYSCR2<SYSCK>
←
0
(Switches the main system clock to the high-frequency clock)
RETI
:
VINTTC4:
DW
PINTTC4
; INTTC4 vector table
High-frequency clock
Low-frequency clock
Main system clock
SYSCK
相关PDF资料
PDF描述
TMP86CH06AUG Zener Diode; Application: General; Pd (mW): 200; Vz (V): 3.87 to 4.10; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MPAK
TMP86CH09NG Zener Diode; Application: General; Pd (mW): 200; Vz (V): 34.00 to 38.00; Condition Iz at Vz (mA): 2; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MPAK
TMP86CH12MG Zener Diode; Application: General; Pd (mW): 200; Vz (V): 4.01 to 4.48; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MPAK
TMP86CH21AUG Zener Diode; Application: General; Pd (mW): 200; Vz (V): 4.01 to 4.21; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MPAK
TMP86CH22UG Zener Diode; Application: General; Pd (mW): 200; Vz (V): 4.15 to 4.34; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V): &#160; ESD (kV) min: -; Package: MPAK
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