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PC912XDP512F0MPVR 데이터시트(PDF) 638 Page - Freescale Semiconductor, Inc |
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PC912XDP512F0MPVR 데이터시트(HTML) 638 Page - Freescale Semiconductor, Inc |
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638 / 1348 page ![]() Chapter 17 Memory Mapping Control (S12XMMCV2) MC9S12XDP512 Data Sheet, Rev. 2.21 638 Freescale Semiconductor 17.4.2.4 XGATE Memory Map Scheme 17.4.2.4.1 Expansion of the XGATE Local Address Map The XGATE 64 Kbyte memory space allows access to internal resources only (Registers, RAM, and FLASH). The 2 Kilobyte register address range is the same register address range as for the CPU and the BDM module . XGATE can access the FLASH in single chip modes, even when the MCU is secured. In expanded modes, XGATE can not access the FLASH when MCU is secured. The local address of the XGATE RAM access is translated to the global RAM address range. The XGATE shares the RAM resource with the CPU and the BDM module. The local address of the XGATE FLASH access is translated to the global address as shown in Figure 17-24. For the implemented memory spaces and addresses please refer to Table 1-4 and Table 1-5. |
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