SI1012 datasheet(91/384 Pages) SILABS

91 / 384 page

Rev. 1.0

Si1010/1/2/3/4/5

5.6. 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 Page = 0x0; SFR Address = 0xC4

SFR Page = 0x0; SFR Address = 0xC3

SFR Definition 5.8. ADC0GTH: ADC0 Greater-Than High Byte

Bit

76543210

Name

AD0GT[15:8]

Type

R/W

Reset

11111111

Bit

Name

Function

7:0

AD0GT[15:8] ADC0 Greater-Than High Byte.

Most Significant Byte of the 16-bit Greater-Than window compare register.

SFR Definition 5.9. ADC0GTL: ADC0 Greater-Than Low Byte

Bit

76543210

Name

AD0GT[7:0]

Type

R/W

Reset

11111111

Bit

Name

Function

7:0

AD0GT[7:0] ADC0 Greater-Than Low Byte.

Least Significant Byte of the 16-bit Greater-Than window compare register.

Note:

In 8-bit mode, this register should be set to 0x00.

SI1012 Datasheet(PDF) 91 Page - Silicon Laboratories

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