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P912XDP512F0MFVR 数据表(PDF) 689 Page - Freescale Semiconductor, Inc

部件名 P912XDP512F0MFVR
功能描述  Covers, S12XD, S12XB & S12XA Families
PDF  1350 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

P912XDP512F0MFVR 数据表(HTML) 689 Page - Freescale Semiconductor, Inc

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Chapter 18 Memory Mapping Control (S12XMMCV3)
MC9S12XDP512 Data Sheet, Rev. 2.17
Freescale Semiconductor
689
18.5.3.4
ROM Control in Emulation Expanded Mode
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 Figure 18-30). When the ROMON bit is cleared, the application memory provides the data
and the emulator will observe the CPU internal actions (see Figure 18-31).
Figure 18-30. ROMON = 1 in Emulation Expanded Mode
EROMON = 1
Application
MCU
Flash
Memory
Emulator
EROMON = 0
Application
MCU
Memory
Emulator
Flash
Generator
Observer



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