MC9S12HZ256 Datasheet, PDF (621/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 22 Module Mapping Control (MMCV4)
A graphical example of a memory paging for a system configured as 1M byte on-chip FLASH/ROM with
64K allocated physical space is given in Figure 22-12.
0x0000
61
16K FLASH
(UNPAGED)
0x4000
62
16K FLASH
(UNPAGED)
ONE 16K FLASH/ROM PAGE ACCESSIBLE AT A TIME
(SELECTED BY PPAGE = 0 TO 63)
0x8000
0
12 3
59 60 61 62 63
16K FLASH
(PAGED)
0xC000
63
16K FLASH
(UNPAGED)
These 16K FLASH/ROM pages accessible from 0x0000 to 0x7FFF if selected
by the ROMHM bit in the MISC register.
0xFF00
VECTORS
0xFFFF
NORMAL
SINGLE CHIP
Figure 22-12. Memory Paging Example: 1M Byte On-Chip FLASH/ROM, 64K Allocation
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
621