Z8FS040 Datasheet, PDF (24/56 Pages) Zilog, Inc. – ZMOTION Detection and Control Family Featuring Zilog’s PIR Technology

ZMOTION^TM Detection and Control Family
Product Specification
Standard API Register Set
The Standard API Register Set is a series of registers implemented in the Z8FS040 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.
API Register Name
PIR Engine Enable Register
PIR Sensitivity Register
PIR Status/Control Register 0
PIR Status/Control Register 1
PIR Status/Control Register 2
PIR Status/Control Register 3
PIR ADC Result Value
PIR Version
Address
Mnemonic
Description
100h ePIR_Enable
Enable PIR Engine
101h ePIR_Sensitivity Motion Sensitivity
102h ePIR_SC0
Motion Status and Engine Mode Control
103h ePIR_SC1
Engine Status and Control
104h ePIR_SC2
Range Control
105h ePIR_SC3
ADC Scan Request
10Ah/10Bh ePIR_ADC_Result ADC Scan Result
10Ch ePIR_Version
PIR Engine Software Version
Table 5 - PIR Engine Standard API Registers
PS028506-1110
PRELIMINARY
19