Z8F042ASJ020EG2156 Datasheet, PDF (33/280 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F082A Series
Product Specification
17
Table 5. Z8 Encore! XP F082A Series Program Memory Maps (Continued)
Program Memory Address (Hex)
Function
0002–0003
Reset Vector
0004–0005
WDT Interrupt Vector
0006–0007
Illegal Instruction Trap
0008–0037
Interrupt Vectors*
0038–0039
Reserved
003A–003D
Oscillator Fail Trap Vectors
003E–03FF
Program Memory
Note: *See Table 32 on page 56 for a list of the interrupt vectors.
Data Memory
The Z8 Encore! XP F082A Series does not use the eZ8 CPU’s 64 KB Data Memory
address space.
Flash Information Area
Table 6 describes the Z8 Encore! XP F082A Series Flash Information Area. This 128 B
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 FE00H to 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 6. Z8 Encore! XP F082A Series Flash Memory Information Area Map
Program Memory
Address (Hex)
FE00–FE3F
FE40–FE53
FE54–FE5F
FE60–FE7F
FE80–FFFF
Function
Zilog Option Bits/Calibration Data
Part Number
20-character ASCII alphanumeric code
Left-justified and filled with FFH
Reserved
Zilog Calibration Data
Reserved
PS022828-0413
PRELIMINARY
Data Memory