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參數資料
| 型號： | W77E516F-25 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數： | 16/85頁 |
| 文件大小： | 596K |
| 代理商： | W77E516F-25 |
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Preliminary W77E516
- 16 -
Clock Control
Bit:
7
6
5
4
3
2
1
0
WD1
WD0
T2M
T1M
T0M
MD2
MD1
MD0
Mnemonic: CKCON
Address: 8Eh
WD1
0: Watchdog timer mode select bits: These bits determine the time-out period for the
watchdog timer. In all four time-out options the reset time-out is 512 clocks more than
the interrupt time-out period.
WD1
WD0
Interrupt time-out
0
0
2
20
2
23
2
26
Reset time-out
2
17
+ 512
2
20
+ 512
2
23
+ 512
2
26
+ 512
2
17
0
1
1
0
1
1
T2M: Timer 2 clock select: When T2M is set to 1, timer 2 uses a divide by 4 clock, and when set to
0 it uses a divide by 12 clock.
T1M: Timer 1 clock select: When T1M is set to 1, timer 1 uses a divide by 4 clock, and when set to
0 it uses a divide by 12 clock.
T0M: Timer 0 clock select: When T0M is set to 1, timer 0 uses a divide by 4 clock, and when set to
0 it uses a divide by 12 clock.
MD2
0: Stretch MOVX select bits: These three bits are used to select the stretch value for the
MOVXinstruction. Using a variable MOVX length enables the user to access slower
external memorydevices or peripherals without the need for external circuits. The RD
or WR strobe will be stretched by the selected interval. When accessing the on-chip
SRAM, the MOVX instruction is always in 2 machine cycles regardless of the stretch
setting. By default, the stretch has value of 1. If the user needs faster accessing, then a
stretch value of 0 should be selected.
MD2
0
0
0
0
1
1
1
1
MD1
0
0
1
1
0
0
1
1
MD0
0
1
0
1
0
1
0
1
Stretch value
MOVX duration
2 machine cycles
3 machine cycles
(Default)
4 machine cycles
5 machine cycles
6 machine cycles
7 machine cycles
8 machine cycles
9 machine cycles
0
1
2
3
4
5
6
7
相關PDF資料 |
PDF描述 |
|---|---|
| W77E516F-40 | 8-BIT MICROCONTROLLER |
| W77E516P-25 | 8-BIT MICROCONTROLLER |
| W77E516P-40 | 8-BIT MICROCONTROLLER |
| W77E532 | 8 BIT MICROCONTROLLER |
| W77E58 | 8 BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W77E516F-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-25 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E516P-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W77E532 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8 BIT MICROCONTROLLER |
| W77E532_07 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
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