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參數(shù)資料
| 型號(hào)： | TMP86CH09NG |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32 |
| 封裝： | 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32 |
| 文件頁(yè)數(shù)： | 91/120頁(yè) |
| 文件大?。?/td> | 1743K |
| 代理商： | TMP86CH09NG |
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Page 61
TMP86FH09ANG
Note 1: After clearing WDTOUT to “0”, the program cannot set it to “1”.
Note 2: fc: High-frequency clock [Hz], fs: Low-frequency clock [Hz], *: Don’t care
Note 3: WDTCR1 is a write-only register and must not be used with any of read-modify-write instructions. If WDTCR1 is read, a
don’t care is read.
Note 4: To activate the STOP mode, disable the watchdog timer or clear the counter immediately before entering the STOP mode.
After clearing the counter, clear the counter again immediately after the STOP mode is inactivated.
Note 5: To clear WDTEN, set the register in accordance with the procedures shown in “1.2.3 Watchdog Timer Disable”.
Note 1: The disable code is valid only when WDTCR1<WDTEN> = 0.
Note 2: *: Don’t care
Note 3: The binary counter of the watchdog timer must not be cleared by the interrupt task.
Note 4: Write the clear code 4EH using a cycle shorter than 3/4 of the time set in WDTCR1<WDTT>.
7.2.2 Watchdog Timer Enable
Setting WDTCR1<WDTEN> to “1” enables the watchdog timer. Since WDTCR1<WDTEN> is initialized
to “1” during reset, the watchdog timer is enabled automatically after the reset release.
Watchdog Timer Control Register 1
WDTCR1
(0034H)
76
54
321
0
(ATAS)
(ATOUT)
WDTEN
WDTT
WDTOUT
(Initial value: **11 1001)
WDTEN
Watchdog timer enable/disable
0: Disable (Writing the disable code to WDTCR2 is required.)
1: Enable
Write
only
WDTT
Watchdog timer detection time
[s]
NORMAL1/2 mode
SLOW1/2
mode
Write
only
DV7CK = 0
DV7CK = 1
00
225/fc
217/fs
01
223/fc
215/fs
215fs
10
221fc
213/fs
213fs
11
219/fc
211/fs
WDTOUT
Watchdog timer output select
0: Interrupt request
1: Reset request
Write
only
Watchdog Timer Control Register 2
WDTCR2
(0035H)
76
543
21
0
(Initial value: **** ****)
WDTCR2
Write
Watchdog timer control code
4EH: Clear the watchdog timer binary counter (Clear code)
B1H: Disable the watchdog timer (Disable code)
D2H: Enable assigning address trap area
Others: Invalid
Write
only
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