mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 649

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

17.5.3.5
In special test mode the external bus is connected to the application. If the ROMON bit is set, the internal
FLASH provides the data, otherwise the application memory provides the data (see
Freescale Semiconductor
ROM Control in Special Test Mode
MCU
MCU
MCU
Figure 17-31. ROMON = 0 in Emulation Expanded Mode
Figure 17-32. ROM in Special Test Mode
Flash
MC9S12XDP512 Data Sheet, Rev. 2.17
Emulator
Application
Application
Application
Chapter 17 Memory Mapping Control (S12XMMCV2)
Memory
ROMON = 0
Memory
ROMON = 1
Memory
Observer
Figure
1-32).
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