Z8F1680SH020SG Datasheet, PDF (46/412 Pages) Zilog, Inc. – High-Performance 8-Bit Microcontrollers

Z8 Encore! XP^® F1680 Series
Product Specification
21
Table 6. F1680 Series MCU Program Memory Maps (Continued)
Program Memory
Address (Hex)
Function
Z8F1680 Device
0000–0001
0002–0003
0004–0005
Flash option bits
Reset vector
WDT interrupt vector
0006–0007
0008–0037
Illegal instruction trap
Interrupt vectors*
0038–003D
003E–3FFF
E000–E3FF
Oscillator fail traps*
Program Flash
1 KB PRAM
Z8F0880 Device
0000–0001
0002–0003
0004–0005
0006–0007
Flash option bits
Reset vector
WDT interrupt vector
Illegal instruction trap
0008–0037
0038–003D
Interrupt vectors*
Oscillator fail traps*
003E–1FFF
E000–E3FF
Program Flash
1 KB PRAM
Note: *See Table 36 on page 69 for a list of inter-
rupt vectors and traps.
3.3.
Data Memory
The F1680 Series MCU does not use the eZ8 CPU’s 64 KB Data Memory address space.
3.4.
Flash Information Area
Table 7 describes the F1680 Series MCU Flash Information Area. This 512-byte
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 512bytes at addresses FE00H to FFFFH. 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.
PS025015-1212
PRELIMINARY
Address Space