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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC821 датащи(PDF) 19 Page - NXP Semiconductors |
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MPC821 датащи(HTML) 19 Page - NXP Semiconductors |
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19 / 242 page  OPERATING INSTRUCTIONS MPC8XXFADS Design Specification—Rev 0.1 PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE SDRAM and the FLASH memory respond to all types of memory access i.e., user / supervisory, program / data and DMA. 3•4 Programming The MPC Registers The MPC provides the following functions on the MPC8XXFADS: 1) DRAM Controller 2) SDRAM Controller 3) Chip Select generator. 4) UART for terminal or host computer connection. a. x ∈ [B,T] b. The device appears repeatedly in multiples of its size. E.g., BCSR0 appears at memory locations 2100000, 2100020, 2100040..., while BCSR1 appears at 2100004, 2100024, 2100044... and so on. c. Only upper 16 bit (D0-D15) are in fact used. d. Refer to the relevant MPC User’s Manual for complete description of the MPC internal memory map. TABLE 3-1. MPC8XXADS Main Memory Map ADDESS RANGE Memory Type Device Type Port Size 00000000 - 003FFFFF DRAM SIMM MB321Bxa08 MB322Bxa08 MC324Cxa00 MB328Cxa00 32 00400000 - 007FFFFF 32 00800000 - 00FFFFFF 32 01000000 - 01FFFFFF 32 02000000 - 020FFFFF Empty Space 02100000 - 02103FFF BCSR(0:4)b 32c 02100000 - 02103FE3 BCSR0 2100004 - 02103FE7 BCSR1 2100008 - 02103FEB BCSR2 210000C - 02103FEF BCSR3 2100010 - 02103FF3 BCSR4 02104000 - 021FFFFF Empty Space 02200000 - 02207FFF MPC Internal MAPd 32 02208000 - 027FFFFF Empty Space 02800000 - 029FFFFF Flash SIMM MCM29F020 MCM29F040 SM732A1000A MCM29F080 SM732A2000 32 02A00000 - 02BFFFFF 32 02C00000 - 02FFFFFF 32 03000000 - 033FFFFF SDRAM 32 03400000 - FFFFFFFF Empty Space Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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