MC9S12XD64MAA Datasheet, PDF (689/1348 Pages) Freescale Semiconductor, Inc – ATD Input Enable Register 0

MCU
Chapter 18 Memory Mapping Control (S12XMMCV3)
Emulator
Observer
Application
Memory
Figure 18-31. ROMON = 0 in Emulation Expanded Mode
18.5.3.5 ROM Control in Special Test Mode
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 Figure 18-32).
MCU
Application
Memory
ROMON = 0
MCU
Application
Flash
Memory
ROMON = 1
Figure 18-32. ROM in Special Test Mode
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor
689