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參數資料
| 型號： | W741C250 |
| 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, 4.19 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 20 MM, QFP-64 |
| 文件頁數： | 16/88頁 |
| 文件大小： | 496K |
| 代理商： | W741C250 |
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W741C250
- 16 -
0
1
2
SEF
w
w
w
w
3
Note: W means write only.
SEF 0 = 1 Device will exit stop mode when falling edge signal is applied to pin RC.0.
SEF 1 = 1 Device will exit stop mode when falling edge signal is applied to pin RC.1.
SEF 2 = 1 Device will exit stop mode when falling edge signal is applied to pin RC.2.
SEF 3 = 1 Device will exit stop mode when falling edge signal is applied to pin RC.3.
Hold Mode Release Condition Flag (HCF)
The hold mode release condition flag is organized as an 8-bit binary register (HCF0 to HCF7). It
indicates by which interrupt source the hold mode has been released, and it is loaded by hardware.
The HCF can be read out by the MOVA R, HCFL
and MOVA R, HCFH instructions. When any of the
HCF bits is "1," the hold mode will be released and the HOLD instruction is invalid. The HCF can be
reset by the CLR EVF, #I (EVF.n = 0) or MOV HEF, #I (HEF.n = 0) instructions. When EVF or HEF
has been reset, the corresponding bit of HCF is reset simultaneously. The bit descriptions are as
follows:
0
1
2
3
4
5
6
7
R
R
HCF
R
R
R
Note: R means read only.
HCF.0 = 1 Hold mode was released by overflow from Divider 0.
HCF.1 = 1 Hold mode was released by underflow from Timer 0.
HCF.2 = 1 Hold mode was released by a signal change on port RC.
HCF.3 Reservsd
HCF.4 = 1 Hold mode was released by a falling edge signal on the
INT
pin.
HCF.5 = 1 Hold mode was released by underflow from Timer 1.
HCF.6 & HCF.7 are reserved.
Event Flag (EVF)
The event flag is organized as a 8-bit binary register (EVF0 to EVF7). It is set by hardware and reset
by the CLR EVF, #I instruction or the occurrence of an interrupt. The bit descriptions are as follows:
EVF
0
1
2
3
4
5
R
R
R
R
R
6
7
Note: R means read only.
EVF.0 = 1 Overflow from Divider 0 occurred.
EVF.1 = 1 Underflow from Timer 0 occurred.
EVF.2 = 1 Signal change on port RC occurred.
相關PDF資料 |
PDF描述 |
|---|---|
| W741C260 | 4-BIT Microcontroller(多次可編程4位的微控制器) |
| W741E20X | 4-BIT FLASH MICROCONTROLLER |
| W741E260 | 4-BIT FLASH MICROCONTROLLER |
| W741L260 | 4-BIT MICROCONTROLLER |
| W742C810 | 4-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| W741E203 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
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