MC68HC711D3CFNE2 Datasheet, PDF (37/124 Pages) Freescale Semiconductor, Inc – Power Saving STOP and WAIT Modes

Freescale Semiconductor, Inc.
4.2 Memory Map
The operating mode determines memory mapping and whether memory is addressed
on- or off-chip. Refer to Figure 4-2, which illustrates the memory maps for each of the
four modes of operation. Memory locations for on-chip resources are the same for both
expanded multiplexed and single-chip modes. 192-byte RAM is mapped to $0040 af-
ter reset. It can be placed at any other 4K boundary ($x040) by writing an appropriate
value to the INIT register. The 64-byte register block is mapped to $0000 after reset
and can also be placed at any 4K boundary ($x000) by writing an appropriate value to
the INIT register. Refer to Table 4-1, which details the MCU register and control bit
assignments.
$0000
$0040
EXT
$7000
EXT
0000 64-BYTE REGISTER BLOCK
003F
0040 192 BYTES STATIC RAM
00FF
EXT
7000 _{4 KBYTES ROM}
7FFF
BOOT
BF00 _ROM
BFFF
BFC0
BFFF
SPECIAL MODES
INTERRUPT
VECTORS
$F000
$FFFF
SINGLE
CHIP
EXPANDED BOOTSTRAP
SPECIAL
TEST
F000
FFFFFFFF
4 KBYTES ROM
FFC0
FFFF
NORMAL
MODES
INTERRUPT
VECTORS
D3 MEM MAP
Figure 4-2 MC68HC11D3 Memory Map
OPERATING MODES AND ON-CHIP MEMORY
TECHNICAL DATA
4-3
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