T89C5115-RATIM datasheet(63/105 Pages) ATMEL

部件名	T89C5115-RATIM

功能描述	Low Pin Count 8-bit MCU with A/D Converter and 16-Kbytes of Flash Memory

PDF	105 Pages

Scroll/Zoom	100%

制造商	ATMEL [ATMEL Corporation]

网页	http://www.atmel.com

标志

63 / 105 page

T89C5115

4128A–8051–04/02

WatchDog Programming

The three lower bits (S0, S1, S2) located into WDTPRG register permit to program the

WDT duration.

Table 43. Machine Cycle Count

To compute WD Time-Out, the following formula is applied:

Note:

Svalue represents the decimal value of (S2 S1 S0)

The following table indicates the computed Time-Out value for Fosc

XTAL =12 MHz in X1

mode

Table 44. Time-Out Computation

Machine Cycle Count

000

214 -1

001

215 -1

010

216 -1

011

217 -1

100

218 -1

101

219 -1

110

220 -1

111

221 -1

Fosc = 12 MHz

Fosc = 16 MHz

Fosc = 20 MHz

16.38 ms

12.28 ms

9.82 ms

32.77 ms

24.57 ms

19.66 ms

65.54 ms

49.14 ms

39.32 ms

131.07 ms

98.28 ms

78.64 ms

262.14ms

196.56ms

157.28ms

524.29ms

393.12ms

314.56ms

1.05sec

786.24ms

629.12ms

2.10 sec

1.57 s

1.25 ms

FTime

Out

Svalue

() 1

–

()

-------------------------------------------------------------------

–

T89C5115-RATIM 数据表(PDF) 63 Page - ATMEL Corporation

T89C5115-RATIM 数据表(HTML) 63 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载