S12G Memory Map Controller (S12GMMCV1)
MC9S12VRP Family Reference Manual Rev. 1.3
104
NXP Semiconductors
3.4.3
Unimplemented and Reserved Address Ranges
The S12GMMC is capable of mapping up 64K of P-Flash, 4K of D-Flash and 6K of RAM into the global
memory map. Smaller devices of the S12VRP-family do not utilize all of the available address space.
Address ranges which are not associated with one of the on-chip memories fall into two categories:
Unimplemented addresses and reserved addresses.
Unimplemented addresses are not mapped to any of the on-chip memories. The S12GMMC is aware that
accesses to these address location have no destination and triggers a system reset (illegal address reset)
whenever they are attempted by the CPU. The BDM is not able to trigger illegal address resets.
Reserved addresses are associated with a memory block on the device, even though the memory block does
not contain the resources to fill the address space. The S12GMMC is not aware that the associated memory
does not physically exist. It does not trigger an illegal address reset when accesses to reserved locations
are attempted.
shows the global address ranges of all members of the S12VRP-family.
Table 3-10. Global Address Ranges
S12VRP48
S12VRP64
0x00000-
0x003FF
Register Space
0x00400-
0x00BFF
2k
4k
0x00C00-
0x013FF
Reserved
D-Flash
0x01400-
0x027FF
Unimplemented
0x02800-
0x03FFF
6k
RAM
0x04000-
0x07FFF
(NVMRES
=1)
Internal NVM Resources
(for details refer to section
FTMRG)
0x04000-
0x07FFF
(NVMRES
=0)
Unimplemented
0x08000-
0x30000
0x30000-
0x33FFF
Reserved
0x34000-
0x37FFF
0x38000-
0x3BFFF
P-Flash
0x3C000-
0x3FFFF
48k
64k
Summary of Contents for MC9S12VRP64
Page 16: ...MC9S12VRP Family Reference Manual Rev 1 3 16 NXP Semiconductors ...
Page 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
Page 236: ...S12S Debug Module S12DBGV2 MC9S12VRP Family Reference Manual Rev 1 3 236 NXP Semiconductors ...
Page 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
Page 358: ...Timer Module TIM16B2CV3 MC9S12VRP Family Reference Manual Rev 1 3 358 NXP Semiconductors ...
Page 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Page 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
Page 530: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 530 NXP Semiconductors ...
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