z8f1621 ZiLOG Semiconductor, z8f1621 Datasheet - Page 33

• Manufacturer Part Number: z8f1621
• Description: High Performance 8-bit Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Data Memory
Information Area
PS019921-0308
Table 5. Z8 Encore! XP F64XX Series Program Memory Maps (Continued)
The Z8 Encore! XP F64XX Series does not use the eZ8 CPU’s 64 KB Data Memory
address space.
Table 6
512 byte Information Area is accessed by setting bit 7 of the Page Select Register to 1.
When access is enabled, the Information Area is mapped into the Program Memory and
overlays the 512 bytes at addresses
enabled, execution of LDC and LDCI instruction from these Program Memory addresses
return the Information Area data rather than the Program Memory data. Reads of these
addresses through the On-Chip Debugger also returns the Information Area data.
Execution of code from these addresses continues to correctly use the Program Memory.
Access to the Information Area is read-only.
Program Memory Address (Hex) Function
0008-0037
0038-BFFF
Z8F642x Products
0000-0001
0002-0003
0004-0005
0006-0007
0008-0037
0038-FFFF
*See
Table 23
on page 20 describes the Z8 Encore! XP F64XX Series Information Area. This
on page 63 for a list of the interrupt vectors.
FE00H
Interrupt Vectors*
Option Bits
Reset Vector
WDT Interrupt Vector
Illegal Instruction Trap
Interrupt Vectors*
Program Memory
Program Memory
to
FFFFH
. When the Information Area access is
Z8 Encore! XP
Product Specification
®
F64XX Series
Address Space
19