Z8F4822AR020SG Datasheet, PDF (40/323 Pages) Zilog, Inc. – High Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F64xx Series
Product Specification
20
Table 5. Z8 Encore! XP F64xx Series Program Memory Maps (Continued)
Program Memory Address (Hex) Function
0006-0007
Illegal Instruction Trap
0008-0037
Interrupt Vectors*
0038-BFFF
Program Memory
Z8F642x Products
0000-0001
Option Bits
0002-0003
Reset Vector
0004-0005
WDT Interrupt Vector
0006-0007
Illegal Instruction Trap
0008-0037
Interrupt Vectors*
0038-FFFF
Program Memory
Note: *See Table 23 on page 48 for a list of the interrupt vectors.
Data Memory
The Z8 Encore! XP F64xx Series does not use the eZ8 CPU’s 64 KB data memory address
space.
Information Area
Table 6 describes the Z8 Encore! XP F64xx Series’ Information Area. This 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 program memory and overlays the 512
bytes at addresses FE00H to FFFFH. When the Information Area access is enabled, execu-
tion of the LDC and LDCI instructions 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 program memory. Access to the Informa-
tion Area is read-only.
PS019924-0113
PRELIMINARY
Data Memory