C8051F331 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F331

Mixed-Signal ISP Flash MCU

Silicon Laboratories 

C8051F330/1/2/3/4/5

5.4. Programmable Window Detector

The ADC Programmable Window Detector continuously compares the ADC0 output registers to user-pro-

grammed limits, and notifies the system when a desired condition is detected. This is especially effective in

an interrupt-driven system, saving code space and CPU bandwidth while delivering faster system

response times. The window detector interrupt flag (AD0WINT in register ADC0CN) can also be used in

polled mode. The ADC0 Greater-Than (ADC0GTH, ADC0GTL) and Less-Than (ADC0LTH, ADC0LTL)

registers hold the comparison values. The window detector flag can be programmed to indicate when mea-

sured data is inside or outside of the user-programmed limits, depending on the contents of the ADC0

Less-Than and ADC0 Greater-Than registers.

SFR Definition 5.7. ADC0GTH: ADC0 Greater-Than Data High Byte

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

11111111

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0 SFR Address:

0xC4

Bits7–0: High byte of ADC0 Greater-Than Data Word

SFR Definition 5.8. ADC0GTL: ADC0 Greater-Than Data Low Byte

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

11111111

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0 SFR Address:

0xC3

Bits7–0: Low byte of ADC0 Greater-Than Data Word

Rev. 1.7

51

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