MC9S12G Datasheet, PDF (244/1160 Pages) Freescale Semiconductor, Inc – Ignores external trigger. Performs one conversion sequence and stops.

S12G Memory Map Controller (S12GMMCV1)
5.4.3 Unimplemented and Reserved Address Ranges
The S12GMMC is capable of mapping up 240K of flash, up to 4K of EEPROM and up to 11K of RAM
into the global memory map{statement}. Smaller devices of the S12G-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.
Table 5-8 shows the global address ranges of all members of the S12G-family.
Table 5-8. Global Address Ranges
0x00000-
0x003FF
0x00400-
0x005FF
0x00600-
0x007FF
0x00800-
0x009FF
0x00A00-
0x00BFF
0x00C00-
0x00FFF
0x01000-
0x013FF
0x01400-
0x01FFF
0x02000-
0x2FFF
0x03000-
0x037FF
0x03800-
0x03BFF
0x03C00-
0x03FFF
S12GN16
0.5k
Reserved
Reserved
1k
S12GN32
S12G48,
S12GN48
1k
1.5k
Reserved
Unimplemented
2k
4k
S12G64 S12G96
Register Space
S12G128 S12G192 S12G240
2k
3k
4k
4k
4k
EEPROM
Reserved
RAM
4k
8k
8k
11k
11k
MC9S12G Family Reference Manual, Rev.1.01
244
Freescale Semiconductor
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.