z8f0813 ZiLOG Semiconductor, z8f0813 Datasheet - Page 139

• Manufacturer Part Number: z8f0813
• Description: High-performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Flash Memory
PS024314-0308
The products in Z8 Encore! XP
2 KB (2048) or 1 KB (1024) of non-volatile Flash memory with read/write/erase capabil-
ity. Flash Memory can be programmed and erased in-circuit by either user code or through
the On-Chip Debugger.
The Flash Memory array is arranged in pages with 512 bytes per page. The 512-byte page
is the minimum Flash block size that can be erased. Each page is divided into 8 rows of 64
bytes.
For program/data protection, the Flash memory is also divided into sectors. In the
Z8 Encore! XP F0823 Series, these sectors are either 1024 bytes (in the 8 KB devices) or
512 bytes in size (all other memory sizes); each sector maps to a page. Page and sector
sizes are not generally equal.
The first two bytes of the Flash Program memory are used as Flash Option Bits. For more
information on their operation, see
Table 77
F0823 Series.
Table 77. Z8 Encore! XP F0823 Series Flash Memory Configurations
Part Number
Z8F08x3
Z8F04x3
Z8F02x3
Z8F01x3
describes the Flash memory configuration for each device in the Z8 Encore! XP
Figure 20
KB (Bytes)
Flash Size
8 (8192)
4 (4096)
2 (2048)
1 (1024)
displays the Flash memory arrangement.
®
F0823 Series features either 8 KB (8192), 4 KB (4096),
Pages
Flash
Flash Option Bits
16
8
4
2
Program Memory
0000H–1FFFH
0000H–0FFFH
0000H–07FFH
0000H–03FFH
Addresses
on page 141.
Z8 Encore! XP
Product Specification
Flash Sector
Size (bytes)
1024
512
512
512
®
F0823 Series
Flash Memory
129