ZLF645 MAXIM [Maxim Integrated Products], ZLF645 Datasheet - Page 76

• Manufacturer Part Number: ZLF645
• Description: Flash MCUs with Learning Amplification
• Manufacturer: MAXIM [Maxim Integrated Products]

16 512-Byte Pages
19-4572; Rev 0; 4/09
Up to 8 Sectors
per Sector
Flash Information Block
Main Program Memory
The Flash Information Block of Flash memory is divided into two sections. Page 3 of the
Information Block is accessible by you or Flash programmer vendor for programming,
reading, or erasure through the ZLF645’s ICP interface or it’s Flash Byte Programming
Interface only, as described in the section
The CPU has no access to this area of memory. User Option Bytes 0 and 1 use addresses
00FE
pre-defined functions.
The Flash read/write protect bits in User Option Byte 1 control the level of Page 3 access
allowed to you along with the User’s level of access to the Flash’s main memory. Bytes
00C0
other operations.
Up to 64 KB Flash
Sector 7
Sector 6
Sector 5
Sector 1
Sector 4
Sector 3
Sector 2
Sector 0
and
through
00FF
00FD
Figure 19. Flash Memory Arrangement
respectively of the Page 3 area and contain programmable bits with 
Addresses (hex)
FFFF
E000
DFFF
C000
BFFF
A000
9FFF
8000
7FFF
6000
5FFF
4000
3FFF
2000
1FFF
0000
of Page 3 have no pre-defined function and are available to you for
64 Bytes each
4 Pages
Flash Byte Programming Interface
Information Memory
256 B Flash
Page 3
Page 2
Page 1
Page 0
ZLF645 Series Flash MCUs
Addresses (hex)
Product Specification
00FF
0080
007F
0400
003F
0000
00C0
00BF
Flash Memory Overview
Internal Use
For Maxim
on page 82.
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