Z8FMC16100 Datasheet, PDF (36/402 Pages) Zilog, Inc. – Z8 Encore-R Motor Control Flash MCUs

Z8 Encore!^® Motor Control Flash MCUs
Product Specification
14
Program Memory
The Z8FMC16100 Series Flash MCU products contain 16 KB of on-chip Flash memory in
the Program Memory address space, depending upon the device (FMC08100 has 8 KB
and FMC04100 has 4 KB). Reading from Program Memory addresses outside the avail-
able Flash memory addresses returns FFh. Writing to these unimplemented Program
Memory addresses produces no effect. Table 3 describes the Program Memory Maps for
the Z8FMC16100 Series Flash MCU products.
Table 3. Z8FMC16100 Series Flash MCU Program Memory Maps
Program Memory Address (Hex) Function
Z8FMC16000 Products
0000-0001
Option Bits
0002-0003
Reset Vector
0004-0007
System Exception Vectors
0008-003F
Interrupt Vectors
0040-3FFF
Program Memory
Note: See Table 29 on page 52 for a list of the interrupt vectors.
Data Memory
The Z8FMC16100 Series Flash MCU does not use the eZ8 CPU’s 64KB Data Memory
address space.
Information Area
Table 4 describes the Z8FMC16100 Series Flash MCU 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 Information Area is mapped into the Program Memory and overlays
the 512 bytes at addresses FE00h to FFFFh. When the Information Area access is 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 Infor-
mation Area is read-only.
Address Space
PRELIMINARY
PS024604-1005