Z8FS021 datasheet(32/68 Pages) ZILOG

32 / 68 page

PS028806-0315

Standard API Register Set

ZMOTION® Intrusion Detection

Product Specification

Tables 5 through 15 describe each of the standard API registers listed in Table 4.

Table 5. PIR Engine Enable Register

(ePIR_Enable)

Bit

76543210

Field

PIR Enable/Disable Pattern

Control

Read/Write

Address

100H

PIR Enable/Disable Pattern (Bits 7–0)

PIR Enable/Disable Register; controlled by the application.

• The PIR Enable Register controls the overall operation of the PIR Engine. As an added level of

protection, there are specific 8-bit enable and disable values; all other values are reserved. Reading this

Status/Control Register values and sets the Engine-controlled values to their default states.

• To enable the PIR Engine, first write the ePIR_ENABLE_PATTERN to the PIR Enable Register, then

execute the EPIR_INIT macro. See Table 6.

Table 6. PIR Software Enable Patterns

Pattern

Name

Description

00h

ePIR_DISABLE_PATTERN

Disables all PIR Engine functions, including motion detection.

Used to temporarily or permanently shut down the Engine.

11h

ePIR_ENABLE_PATTERN

Enables the PIR Engine. All primary Engine functions, as

configured in Engine Status/Control Registers, are enabled.

Confirmation of enabled status is provided through the Engine

Disabled bit in Status/Control Register 0.

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