sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 145

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

3.5
Each memory can be implemented in its maximum allowed size. But some devices have been defined for
smaller sizes, which means less implemented pages. All non implemented pages are called unimplemented
areas.
3.5.1
The global memory spaces reserved for the internal resources (RAM, D-Flash, and P-Flash) are not
determined by the MMC module. Size of the individual internal resources are however fixed in the design
of the device cannot be changed by the user. Please refer to the SoC Guide for further details.
and
spaces have fixed top addresses.
In single-chip modes accesses by the CPU12 (except for firmware commands) to any of the
unimplemented areas (see
to the unimplemented areas are allowed but the data will be undefined.
No misaligned word access from the BDM module will occur; these accesses are blocked in the BDM
module (Refer to BDM Block Guide).
Freescale Semiconductor
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Table 3-7
1
2
Registers has a fixed size of 1KB, accessible via xbus0.
SRAM has a maximum size of 11KB, accessible via xbus0.
D-Flash has a fixed size of 4KB accessible via xbus0.
P-Flash has a maximum size of 224KB, accessible via xbus0.
RAMSIZE is the hexadecimal value of RAM SIZE in bytes
FLASHSIZE is the hexadecimal value of FLASH SIZE in bytes
Implemented Memory in the System Memory Architecture
Implemented Memory Map
Internal Resource
show the memory spaces occupied by the on-chip resources. Please note that the memory
System RAM
Registers
D-Flash
P-Flash
Figure
Table 3-7. Global Implemented Memory Space
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
3-11) will result in an illegal access reset (system reset). BDM accesses
0x4_0000 minus FLASHSIZE
0x0_4000 minus RAMSIZE
Bottom Address
RAM_LOW =
PF_LOW =
0x0_0000
0x0_4400
1
2
S12P Memory Map Control (S12PMMCV1)
Top Address
0x3_FFFF
0x0_03FF
0x0_3FFF
0x0_53FF
Figure 3-11
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