C8051F045 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F045

Mixed Signal ISP Flash MCU Family

Silicon Laboratories 

C8051F040/1/2/3/4/5/6/7

SFR Definition 5.12. ADC0LTL: ADC0 Less-Than Data Low Byte

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

00000000

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

SFR Address: 0xC6

SFR Page: 0

Bits7-0: Low byte of ADC0 Less-Than Data Word.

Input Voltage

(AD0 - AGND)

REF x (4095/4096)

ADC Data

Word

0x0FFF

AD0WINT

not affected

REF x (512/4096)

REF x (256/4096)

0x0201

0x0200

0x01FF

0x0101

0x0100

0x00FF

ADC0LTH:ADC0LTL

AD0WINT=1

ADC0GTH:ADC0GTL

AD0WINT

not affected

0

0x0000

Given:

AMX0SL = 0x00, AMX0CF = 0x00

AD0LJST = ‘0’,

ADC0LTH:ADC0LTL = 0x0200,

ADC0GTH:ADC0GTL = 0x0100.

An ADC0 End of Conversion will cause an

ADC0 Window Compare Interrupt (AD0WINT

= ‘1’) if the resulting ADC0 Data Word is

< 0x0200 and > 0x0100.

Input Voltage

(AD0 - AGND)

REF x (4095/4096)

ADC Data

Word

0x0FFF

AD0WINT=1

REF x (512/4096)

REF x (256/4096)

0x0201

0x0200

0x01FF

0x0101

0x0100

0x00FF

ADC0GTH:ADC0GTL

AD0WINT

not affected

ADC0LTH:ADC0LTL

AD0WINT=1

0

0x0000

Given:

AMX0SL = 0x00, AMX0CF = 0x00,

AD0LJST = ‘0’,

ADC0LTH:ADC0LTL = 0x0100,

ADC0GTH:ADC0GTL = 0x0200.

An ADC0 End of Conversion will cause an

ADC0 Window Compare Interrupt (AD0WINT

= ‘1’) if the resulting ADC0 Data Word is

> 0x0200 or < 0x0100.

Figure 5.8. 12-Bit ADC0 Window Interrupt Example:

Right Justified Single-Ended Data

Rev. 1.5

63

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