S912XEP100J5MAGR Freescale Semiconductor, S912XEP100J5MAGR Datasheet - Page 228

• Manufacturer Part Number: S912XEP100J5MAGR
• Description: S912XEP Series 16 Bit 50 Mhz 1 MB Flash 64 KB Ram Microcontroller - LQFP-144
• Manufacturer: Freescale Semiconductor

Chapter 3 Memory Mapping Control (S12XMMCV4)
3.5.3.4
In emulation expanded mode the external bus will be connected to the emulator and to the application. If
the ROMON bit is set, the internal FLASH provides the data. If the EROMON bit is set as well the
emulator observes all CPU internal actions, otherwise the emulator provides the data and traces all CPU
actions (see
the emulator will observe the CPU internal actions (see
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Figure
ROM Control in Emulation Expanded Mode
3-27). When the ROMON bit is cleared, the application memory provides the data and
MCU
MCU
Figure 3-27. ROMON = 1 in Emulation Expanded Mode
MC9S12XE-Family Reference Manual , Rev. 1.23
Flash
Figure
Emulator
Application
Emulator
Application
3-28).
EROMON = 0
EROMON = 1
Memory
Memory
Flash
Observer
Generator
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