T89C5115-RATIM datasheet(86/113 Pages) ATMEL

部品番号	T89C5115-RATIM

部品情報	Low Pin Countl 8-bit Microcontroller with A/D Converter and 16 KBytes Flash Memory

PDF	113 Pages

Scroll/Zoom	100%

メーカー	ATMEL [ATMEL Corporation]

ホームページ	http://www.atmel.com

Logo

86 / 113 page

AT89C5115

4128F–8051–05/06

Figure 41. ADC interrupt structure

Routine Examples

1. Configure P1.2 and P1.3 in ADC channels

// configure channel P1.2 and P1.3 for ADC

ADCF = 0Ch

// Enable the ADC

ADCON = 20h

2. Start a standard conversion

// The variable ’channel’ contains the channel to convert

// The variable ’value_converted’ is an unsigned int

// Clear the field SCH[2:0]

ADCON &= F8h

// Select channel

ADCON |= channel

// Start conversion in standard mode

ADCON |= 08h

// Wait flag End of conversion

while((ADCON & 01h)!= 01h)

// Clear the End of conversion flag

ADCON &= EFh

// read the value

value_converted = (ADDH << 2)+(ADDL)

3. Start a precision conversion (need interrupt ADC)

// The variable ’channel’ contains the channel to convert

// Enable ADC

EADC = 1

// clear the field SCH[2:0]

ADCON &= F8h

// Select the channel

ADCON |= channel

// Start conversion in precision mode

ADCON |= 48h

Note:

To enable the ADC interrupt: EA = 1

ADEOC

ADCON.2

EADC

IEN1.1

ADCI

T89C5115-RATIM データシート(PDF) 86 Page - ATMEL Corporation

T89C5115-RATIM データシート(HTML) 86 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

データシートダウンロード