Z8FS021 Datasheet, PDF (18/68 Pages) Zilog, Inc. – Select from an assortment of lenses and pyroelectric sensors to best fit your application

ZMOTION^® Intrusion Detection
Product Specification
10
Flash Memory Map
The Z8FS021 MCU is based on Zilog’s Z8F082A device, which contains a total of 8 KB
Flash memory. Zilog’s PIR technology is located in the 6 KB address range
0800h–1FFFh, a code space that is locked and cannot be erased by the user or by the
Zilog Debug Interface (ZDI) mass erase or page erase commands. The remaining 2 KB of
this Flash memory space, in the address range 0000h–07FFh, is available for user appli-
cation code.
Note: The Z8FS021 MCU is not preprogammed with application code. A generic version of the
ZMOTION Intrusion Detection source code (RD0001-SC01) can be downloaded from
zilog.com and programmed into the MCU.
A memory map of the Z8FS021 MCU’s Flash code space is illustrated in Figure 5.
1FFFh
Reserved for
PIR Engine
PS028806-0315
0800h
07FFh
User Application
Code Space
(1986 bytes)
003Eh
003Dh
0000h
Interrupt Vectors
and Option Bits
Figure 5. Z8FS040 MCU Program Memory Map
Flash Memory Map