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56F8014 датащи(PDF) 8 Page - Freescale Semiconductor, Inc |
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56F8014 датащи(HTML) 8 Page - Freescale Semiconductor, Inc |
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8 / 124 page ![]() 56F8014 Technical Data, Rev. 3 8 Freescale Semiconductor Preliminary Figure 1-1 System Bus Interfaces Note: Flash memories are encapsulated within the Flash Interface Unit (FIU). Flash control is accomplished by the I/O to the FIU over the peripheral bus, while reads and writes are completed between the core and the Flash memories. Note: The primary data RAM port is 32 bits wide. Other data ports are 16 bits. 56800E Program Flash Data / Program RAM IPBus Bridge Flash Interface Unit CHIP TAP Controller TAP Linking Module 4 primary data read port secondary data read port Program reads can be done on secondary port of data memory Program writes can be done on primary port of data memory NOTE: All Flash reads and writes are routed through the Flash interface units, which encapsulate the Flash memories. This is not shown for clarity’s sake. JTAG / EOnCE pdb_m[15:0] pab[20:0] xdb2_m[15:0] xab2[23:0] cdbw[31:0] pdb_m[23:0] cdbr_m[31:0] IPBus To Flash Control Logic External JTAG Port GPIO |
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