Z8FS021 datasheet(31/68 Pages) ZILOG

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PS028806-0315

Standard API Register Set

ZMOTION® Intrusion Detection

Product Specification

Standard API Register Set

The Standard API Register set, shown in Table 4, is a series of registers implemented in

the Z8FS040 MCU RAM that allows the user code to configure and communicate with the

PIR Engine. The default values are loaded only when the PIR Engine is enabled via the

PIR Enable Register.

Table 4. PIR Engine Standard API Registers

API Register Name

Address

Mnemonic

Description

PIR Engine Enable Register

(ePIR_Enable)

100h

ePIR_Enable

Enable PIR Engine.

PIR Sensitivity Register

(ePIR_Sensitivity)

101h

ePIR_Sensitivity

Motion Sensitivity.

PIR Status/Control Register 0

(ePIR_SC0)

102h

ePIR_SC0

Motion Status and Engine

Mode Control.

PIR Status/Control Register 1

(ePIR_SC1)

103h

ePIR_SC1

Engine Status and Control.

PIR Status/Control Register 2

(ePIR_SC2)

104h

ePIR_SC2

Range Control.

PIR Status/Control Register 3

(ePIR_SC3), 28-pin SSOP

105h

ePIR_SC3

ADC Scan Request.

PIR ADC Result Value

(ePIR_ADC_Result)

10Ah/10Bh

ePIR_ADC_Result ADC Scan Result.

PIR Version (ePIR_Version)

10Ch

ePIR_Version

PIR Engine Software Version.

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