Z8 Encore! XP® 4K Series
Product Specification
15
®
Table 6. Z8 Encore! XP 4K Series Series Program Memory Maps (Continued)
Program Memory Address (Hex)
0006–0007
Function
Illegal Instruction Trap
Interrupt Vectors*
Reserved
0008–0037
0038-0039
003A-003D
Oscillator Fail Trap Vectors
Program Memory
003E–03FF
* See Table 33 on page 51 for a list of the interrupt vectors.
Data Memory
The Z8 Encore! XP® 4K Series does not use the eZ8 CPU’s 64KB Data Memory address
space.
Flash Information Area
Table 7 describes the Z8 Encore! XP® 4K Series Flash Information Area. This 128B
Information Area is accessed by setting bit 7 of the Flash Page Select Register to 1. When
access is enabled, the Flash Information Area is mapped into the Program Memory and
overlays the 128 bytes at addresses FE00Hto FF7FH. When the Information Area access is
enabled, all reads from these Program Memory addresses return the Information Area data
rather than the Program Memory data. Access to the Flash Information Area is read-only.
®
Table 7. Z8 Encore! XP 4K Series Flash Memory Information Area Map
Program Memory Address (Hex) Function
FE00–FE3F
FE40–FE53
ZiLOG Option Bits/Calibration Data
Part Number
20-character ASCII alphanumeric code
Left justified and filled with FFH
FE54–FE5F
FE60–FE7F
FE80–FFFF
Reserved
ZiLOG Calibration Data
Reserved
PS022815-0206
Address Space
ZILOG [ ZILOG, INC. ]
