Z8F640x/Z8F480x/Z8F320x/Z8F240x/Z8F160x
Z8 Encore!®
18
Program Memory
The eZ8 CPU supports 64KB of Program Memory address space. The Z8F640x family
devices contain 16KB to 64KB of on-chip Flash memory in the Program Memory address
space. Reading from Program Memory addresses outside the available Flash memory
addresses returns FFH. Writing to these unemployments Program Memory addresses pro-
duces no effect. Table 4 describes the Program Memory Maps for the Z8F640x family
products.
Table 4. Z8F640x Family Program Memory Maps
Program Memory Address (Hex) Function
Z8F160x Products
0000-0001
0002-0003
0004-0005
0006-0007
0008-0037
0038-3FFFH
Flash Option Bits
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
Z8F240x Products
0000-0001
0002-0003
0004-0005
0006-0007
0008-0037
0038-5FFFH
Flash Option Bits
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
Z8F320x Products
0000-0001
0002-0003
0004-0005
0006-0007
0008-0037
0038-7FFFH
Flash Option Bits
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
* See Table 22 on page 45 for a list of the interrupt vectors.
PS017610-0404
Address Space
ZILOG [ ZILOG, INC. ]
