Z8F6421PM020SC Datasheet, PDF (38/299 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers Z8 Encore-R 64K Series

Z8 Encore!^® 64K Series
Product Specification
18
Program Memory
The eZ8 CPU supports 64 KB of Program Memory address space. The Z8 Encore!^® 64K
Series contains 16 KB to 64 KB of on-chip Flash in the Program Memory address space,
depending upon the device. Reading from Program Memory addresses outside the avail-
able Flash memory addresses returns FFH. Writing to these unimplemented Program
Memory addresses produces no effect. Table 5 describes the Program Memory Maps for
the 64K Series products.
Table 5. Z8 Encore^® 64K Series Program Memory Maps
Program Memory Address (Hex) Function
Z8F162x Products
0000-0001
Option Bits
0002-0003
0004-0005
0006-0007
0008-0037
0038-3FFF
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
Z8F242x Products
0000-0001
Option Bits
0002-0003
0004-0005
0006-0007
0008-0037
0038-5FFF
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
Z8F322x Products
0000-0001
Option Bits
0002-0003
0004-0005
0006-0007
0008-0037
0038-7FFF
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
* See Table 23 on page 63 for a list of the interrupt vectors.
PS019915-1005
Address Space