ST7262 datasheet(91/132 Pages) STMICROELECTRONICS

91 / 132 page

ST7262

91/132

10-BIT A/D CONVERTER (ADC) (Cont’d)

10.7.6 Register Description

CONTROL/STATUS REGISTER (ADCCSR)

Read /Write (Except bit 7 read only)

Reset Value: 0000 0000 (00h)

Bit 7 = EOC

End of Conversion

This bit is set by hardware. It is cleared by soft-

ware reading the ADCDRMSB register.

0: Conversion is not complete

1: Conversion complete

Bit 6 = SPEED

ADC clock selection

This bit is set and cleared by software.

0: fADC = fCPU/2

1: fADC = fCPU/4

Bit 5 = ADON

A/D Converter on

This bit is set and cleared by software or by hard-

ware after the end of a one shot conversion.

0: Disable ADC and stop conversion

1: Enable ADC and start conversion

Bit 4 = ITE

Interrupt Enable

This bit is set and cleared by software.

0: EOC Interrupt disabled

1: EOC Interrupt enabled

Bit 3 = ONESHOT

One Shot Conversion Selection

This bit is set and cleared by software.

0: Continuous conversion mode

1: One Shot conversion mode

Bit 2:0 = CS[2:0]

Channel Selection

These bits are set and cleared by software. They

select the analog input to convert.

*The number of channels is device dependent. Refer to

the device pinout description.

DATA REGISTER (ADCDRMSB)

Read Only

Reset Value: 0000 0000 (00h)

Bit 7:0 = D[9:2]

MSB of Analog Converted Value

This register contains the MSB of the converted

analog value.

DATA REGISTER (ADCDRLSB)

Read Only

Reset Value: 0000 0000 (00h)

Bit 7:2 = Reserved. Forced by hardware to 0.

Bit 1:0 = D[1:0]

LSB of Analog Converted Value

This register contains the LSB of the converted an-

alog value.

EOC

SPEED ADON

ITE

ONE

SHOT

CS2

CS1

CS0

Channel*

CS2

CS1

CS0

000

001

010

011

100

101

110

111

000000

ST7262 数据表(PDF) 91 Page - STMicroelectronics

ST7262 数据表(HTML) 91 Page - STMicroelectronics

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

链接网址

ST7262 数据表(PDF) 91 Page - STMicroelectronics

ST7262 数据表(HTML) 91 Page - STMicroelectronics

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

链接网址

数据表下载