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參數(shù)資料
| 型號： | W921E840 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-Bit Microcontroller(4位的微控制器) |
| 中文描述： | 4-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數(shù)： | 40/64頁 |
| 文件大小： | 603K |
| 代理商： | W921E840 |
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W921E840
- 40 -
The hold released status flag1, 2, 3 (HRSTS1, 2, 3, address = 03CH, 03DH, 03EH) indicate by which
interrupt source the hold mode has been released, and is loaded by hardware. When any bit of
HRSTS1, 2, 3 is "1," the hold mode will be released and HOLD instruction in invalid. The bit
descriptions are as follows:
HRSTS1 register: (address = 03CH, read only, default data = 0H)
b3
b2
b1
b0
1: Hold was released by TM0
1: Hold was released by TM1
1: Hold was released by TM2
1: Hold was released by TM3
HRSTS2 register: (address = 03DH, read only, default data = 0H)
b3
b2
b1
b0
1: Hold was released by the INT0 pin
1: Hold was released by serial port
1: Hold was released by comparator
Reserved
HRSTS3 register: (address = 03EH, read only, default data = 0H)
b3
b2
b1
b0
1: Hold was released by pin P4.0
1: Hold was released by pin P4.1
1: Hold was released by pin P4.2
Reserved
HRSTS1, 2 and 3 are read only registers and can be reset by the instruction CLR EVF, #I. When EVF
has been reset, the corresponding bit of HRSTSn (n = 1 to 3) is reset simultaneously.
6.13.3 Stop Mode
The
μ
C enters the stop mode only when the STOP instruction is executed. Because the oscillator is
stopped, all functions in this chip are stopped.
The stop mode can be released by the RESET pin, INT0 pin, P4.0 to P4.2, PA port or PB port. The
stop condition release flag (STPRF, address = 035H) is the stop mode release control register.
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PDF描述 |
|---|---|
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| W921F840 | 4-Bit Microcontroller(4位的微控制器) |
| W9310 | Direct Sequence Spread Spectrum Transceiver(直接序列擴展頻譜收發(fā)器) |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| W921E840A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W921E843A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W921E880 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W921E880A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W925C240 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Controller |
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