Freescale Semiconductor Tower System Eval Kit for MC9S12GN32 TWR-S12GN32-KIT TWR-S12GN32-KIT Hoja De Datos

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S12G Memory Map Controller (S12GMMCV1)
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
279
5.4.4
Prioritization of Memory Accesses
On S12G devices, the CPU and the BDM are not able to access the memory in parallel. An arbitration
occurs whenever both modules attempt a memory access at the same time. CPU accesses are handled with
higher priority than BDM accesses unless the BDM module has been stalled for more then 128 bus cycles.
In this case the pending BDM access will be processed immediately.
5.4.5
Interrupts
The S12GMMC does not generate any interrupts.
0x04000-
0x07FFF
(NVMRES=1)
Internal NVM Resources (for details refer to section FTMRG)
0x04000-
0x07FFF
(NVMRES=0)
Reserved
0x08000-
0x0FFFF
0x08000-
0x1FFFF
Unimplemented
0x20000-
0x27FFF
Reserved
0x28000-
0x2FFFF
0x30000-
0x33FFF
Reserved
0x34000-
0x37FFF
Flash
0x38000-
0x3BFFF
Reserved
0x3C000-
0x3FFFF
16k
32k
48k
64k
96k
128k
192k
240k
Table 5-8. Global Address Ranges
S12GN16
S12GN32
S12G48,
S12GN48
S12G64
S12G96
S12G128
S12G192
S12G240