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參數(shù)資料
| 型號(hào)： | W741C240 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT Microcontroller(多次可編程4位的微控制器) |
| 中文描述： | 4-BIT, MROM, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁(yè)數(shù)： | 13/40頁(yè) |
| 文件大小： | 432K |
| 代理商： | W741C240 |
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W741C240
Publication Release Date: May 1999
- 13 -
Revision A1
Hold Mode Release Enable Flag (HEF)
The hold mode release enable flag is organized as an 8-bit binary register (HEF.0 to HEF.7). The
HEF is used to control the hold mode release conditions. It is controlled by the MOV HEF, #I
instruction. The bit descriptions are as follows:
0
1
2
HEF
w
w
w
3
4
5
6
7
Note: W means write only.
HEF.0 = 1 Overflow from Divider 0 causes hold mode to be released.
HEF.1 Reserved
HEF.2 = 1 Signal change at port RC causes hold mode to be released.
HEF.3, 4 Reserved
HEF.5, 6 Reserved
HEF.7 = 1 Underflow from Timer 1 causes hold mode to be released.
Interrupt Enable Flag (IEF)
The interrupt enable flag is organized as an 8-bit binary register (IEF.0 to IEF.7). These bits are used
to control the interrupt conditions. It is controlled by the MOV IEF, #I instruction. When one of these
interrupts is accepted, the corresponding bit of the event flag will be reset, but the other bits are
unaffected. In interrupt subroutine, these interrupts will be disabled till the instruction MOV IEF, #I
or
EN INT
is executed again. Besides, these interrupts can be disabled by executing DIS INT instruction.
The bit descriptions are as follows:
0
1
2
IEF
w
w
w
3
4
5
6
7
Note: W means write only.
IEF.0 = 1 Interrupt 0 is accepted by overflow from Divider 0.
IEF.1 Reserved
IEF.2 = 1 Interrupt 2 is accepted by a signal change on port RC.
IEF.3, 4 Reserved
IEF.5, 6 Reserved
IEF.7 = 1 Interrupt 7 is accepted by underflow from Timer 1.
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| W741C250 | 4-BIT Microcontroller(多次可編程4位的微控制器) |
| W741C260 | 4-BIT Microcontroller(多次可編程4位的微控制器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W741C250 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| W741C260 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER |
| W741E200 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| W741E201 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
| W741E202 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
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