Z8FS021 Datasheet, PDF (43/68 Pages) Zilog, Inc. – Select from an assortment of lenses and pyroelectric sensors to best fit your application

ZMOTION^® Intrusion Detection
Product Specification
35
Advanced API Register Set
The registers are for advanced configuration of the PIR Engine. They include customiza-
tion for lens and pyroelectric sensor configurations. These registers are not initialized by
the PIR Engine.
Table 16. PIR Engine API Advanced Registers
API Advanced Register Name Address
PIR Advanced Status/Control F0h
Register 0
PIR Advanced Status/Control F1h
Register 1
PIR Advanced Status/Control F2h
Register 2
PIR Engine Process Rate
F3h/F4h
PIR Sample Size Register
F5h
PIR Debounce Time Register F6h
PIR Debounce Batch Size
F7h
Register
PIR Transient Sensitivity Level F8h
PIR Noise Sensitivity Level F9h
PIR Pyro Signal
FAh/FBh
PIR Pyro DC Signal Level
FCh/FDh
PIR Extended Detection
FEh
Sensitivity Level
PIR Extended Detection
FFh
Debounce Timeout
Mnemonic
ePIR_ASC0
Description
Engine control and status.
ePIR_ASC1
White Light Debounce and
Scan Rate.
ePIR_ASC2
Window Size, Lock Level, and
Window Update Rate.
ePIR_Process_Rate
Relative Processing available
to the PIR Engine.
ePIR_Sample_Size
Controls amount of sensor
signal averaging.
ePIR_Debounce_Time
Controls time to Debounce
motion signal.
ePIR_Debounce_Batch Controls out of window samples
required for Debounce.
ePIR_Transient_Sense Sets PIR Engine sensitivity to
transient detection.
ePIR_Noise_Sense
Sets PIR Engine sensitivity to
noise detection.
ePIR_Signal
Current Pyro Sensor signal
sample.
ePIR_Signal_DC
Current calculated Pyro Sensor
DC offset.
ePIR_Extended_Sense Controls sensitivity of extended
detector.
ePIR_Extended_Timeout Controls.
PS028806-0315
Advanced API Register Set