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Chapter 11 Memory Mapping Control (S12XMMCV4) SUPPORTING FLEXRAY
MC9S12XF - Family Reference Manual, Rev.1.17
452
Freescale Semiconductor
Figure 11-5. Mode Transition Diagram when MCU is Unsecured
Normal
Single-Chip
100
Normal
Expanded
101
Emulation
Expanded
011
Emulation
Single-Chip
001
Special
Test
010
Special
Single-Chip
000
101
011
101
000
010
100
001
100
101
RESET
(SS)
110
111
000
RESET
010
101
011
001
100
(EX)
(NX)
(NS)
(ES)
(ST)
RESET
Transition done by external pins (MODC, MODB, MODA)
Transition done by write access to the MODE register
110
111
Illegal (MODC, MODB, MODA) pin values.
Do not use. (Reserved for future use).