- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45010 > M30240M1-XXXFP 16-BIT, MROM, MICROCONTROLLER, PQFP80 PDF資料下載
參數(shù)資料
| 型號： | M30240M1-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, MICROCONTROLLER, PQFP80 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 57/125頁 |
| 文件大小： | 753K |
| 代理商： | M30240M1-XXXFP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁當前第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁
Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
39
CONFIDENTIAL
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
Watchdog Timer
2.16 Watchdog Timer
The watchdog timer has the function of detecting when the program is out of control. The watchdog timer
is a 15-bit counter that decrements using the clock derived by dividing the internal clock
φ using the
prescaler. A watchdog timer interrupt is generated when an underflow occurs in the watchdog timer. Bit
7 of the watchdog timer control register (address 000F16) selects the prescaler division ratio (by 16 or
128). Table 11 shows the periodic table for the watchdog timer
.
Note: Error is generated by the prescaler
The watchdog timer is initialized by writing to the watchdog timer start register (address 000E16) and
when a watchdog timer interrupt request is generated. The prescaler is initialized only when the
microcomputer is reset. After a reset is cancelled, the watchdog timer and prescaler are both stopped.
The count is started by writing to the watchdog timer start register (address 000E16).
Figure 21 shows the block diagram of the watchdog timer. Figure 22 shows the watchdog timer-related
registers.
Figure 21:
Block diagram of watchdog timer
Table 11:
Watchdog timer periodic table (XIN = 10MHz)
CM06
CM17
CM16
Internal clock
φ
WDC7
Period
0
10MHz
0
Approx. 52.4ms (Note)
1
Approx. 419.2ms (Note)
0
1
5MHz
0
Approx. 104.9ms (Note)
1
Approx. 838.8ms (Note)
0
1
0
2.5MHz
0
Approx. 209.7ms (Note)
1
Approx. 1.68s (Note)
0
1
0.625MHz
0
Approx. 838.8ms (Note)
1
Approx. 6.71s (Note)
1
Invalid
1.25MHz
0
Approx. 419.2ms (Note)
1
Approx. 3.35s (Note)
1/16
1/128
Watchdog timer
interrupt request
Set to 7FFF16
WDC7 = 0
WDC7 = 1
RESET
Write to the watchdog
timer start register
(address 000E16)
HOLD
Internal clock
φ
相關PDF資料 |
PDF描述 |
|---|---|
| M30245MC-XXXGP | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| M30245FCGP | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100 |
| M30260F3VGP | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48 |
| M30260M3A-XXXGP-U5 | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48 |
| M30260M8A-XXXGP-U5 | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP48 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M30240M2 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M2-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M3 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M3-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M4 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復。