Z8F042ASJ020EG2156 Datasheet, PDF (162/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
147
8KB Flash
Program Memory
Addresses (hex)
1FFF
Sector 7
1C00
4KB Flash
Program Memory
Addresses (hex)
0FFF
Sector 7
0E00
Sector 6
1BFF
1800
Sector 6
0DFF
0C00
Sector 5
17FF
1400
Sector 5
0BFF
0A00
Sector 4
13FF
1000
Sector 4
09FF
0800
Sector 3
0FFF
0C00
Sector 3
07FF
0600
Sector 2
0BFF
0800
Sector 2
05FF
0400
Sector 1
07FF
0400
Sector 1
03FF
0200
Sector 0
03FF
Sector 0
01FF
0000
0000
Figure 21. Flash Memory Arrangement
2KB Flash
Program Memory
Addresses (hex)
Sector 3
07FF
0600
05FF
Sector 2
0400
03FF
Sector 1
Sector 0
0200
01FF
0000
1KB Flash
Program Memory
Addresses (hex)
03FF
Sector 1
Sector 0
0200
01FF
0000
Flash Information Area
The Flash information area is separate from Program Memory and is mapped to the
address range FE00H to FFFFH. This area is readable but cannot be erased or overwritten.
Factory trim values for the analog peripherals are stored here. Factory calibration data for
the ADC is also stored here.
Operation
The Flash Controller programs and erases Flash memory. The Flash Controller provides
the proper Flash controls and timing for Byte Programming, Page Erase and Mass Erase of
Flash memory.
The Flash Controller contains several protection mechanisms to prevent accidental program-
ming or erasure. These mechanism operate on the page, sector and full-memory levels.
PS022828-0413
PRELIMINARY
Flash Information Area