- 您现在的位置：买卖IC网 > PDF目录199412 > TMP86CH09NG 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32 PDF资料下载
参数资料
| 型号： | TMP86CH09NG |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32 |
| 封装： | 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32 |
| 文件页数： | 92/120页 |
| 文件大小： | 1743K |
| 代理商： | TMP86CH09NG |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页当前第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页
Page 62
7. Watchdog Timer (WDT)
7.2 Watchdog Timer Control
TMP86FH09ANG
7.2.3 Watchdog Timer Disable
To disable the watchdog timer, set the register in accordance with the following procedures. Setting the reg-
ister in other procedures causes a malfunction of the microcontroller.
1. Set the interrupt master flag (IMF) to “0”.
2. Set WDTCR2 to the clear code (4EH).
3. Set WDTCR1<WDTEN> to “0”.
4. Set WDTCR2 to the disable code (B1H).
Note:While the watchdog timer is disabled, the binary counters of the watchdog timer are cleared.
7.2.4 Watchdog Timer Interrupt (INTWDT)
When WDTCR1<WDTOUT> is cleared to “0”, a watchdog timer interrupt request (INTWDT) is generated
by the binary-counter overflow.
A watchdog timer interrupt is the non-maskable interrupt which can be accepted regardless of the interrupt
master flag (IMF).
When a watchdog timer interrupt is generated while the other interrupt including a watchdog timer interrupt
is already accepted, the new watchdog timer interrupt is processed immediately and the previous interrupt is
held pending. Therefore, if watchdog timer interrupts are generated continuously without execution of the
RETN instruction, too many levels of nesting may cause a malfunction of the microcontroller.
To generate a watchdog timer interrupt, set the stack pointer before setting WDTCR1<WDTOUT>.
Example :Disabling the watchdog timer
DI
: IMF
← 0
LD
(WDTCR2), 04EH
: Clears the binary coutner
LDW
(WDTCR1), 0B101H
: WDTEN
← 0, WDTCR2 ← Disable code
Table 7-1 Watchdog Timer Detection Time (Example: fc = 16.0 MHz, fs = 32.768 kHz)
WDTT
Watchdog Timer Detection Time[s]
NORMAL1/2 mode
SLOW
mode
DV7CK = 0
DV7CK = 1
00
2.097
4
01
524.288 m
1
10
131.072 m
250 m
11
32.768 m
62.5 m
Example :Setting watchdog timer interrupt
LD
SP, 023FH
: Sets the stack pointer
LD
(WDTCR1), 00001000B
: WDTOUT
← 0
相关PDF资料 |
PDF描述 |
|---|---|
| TMP86CM29BU | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64 |
| TMP86FH09NG | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDIP32 |
| TMP86FS49BUG | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64 |
| TMP86PS25F | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| TMP87C800N | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TMP86CH12MG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
| TMP86CH21AUG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
| TMP86CH21F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller |
| TMP86CH21U | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller |
| TMP86CH22UG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。