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ADSP-2189NKCA-320 Datasheet(PDF) 10 Page - Analog Devices |
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ADSP-2189NKCA-320 Datasheet(HTML) 10 Page - Analog Devices |
10 / 48 page Rev. A | Page 10 of 48 | August 2006 ADSP-218xN Program Memory Program Memory (Full Memory Mode) is a 24-bit-wide space for storing both instruction opcodes and data. The member DSPs of this series have up to 48K words of Program Memory RAM on chip, and the capability of accessing up to two 8K external memory overlay spaces, using the external data bus. Figure 7. ADSP-2187 Memory Architecture Figure 8. ADSP-2188 Memory Architecture Figure 9. ADSP-2189 Memory Architecture PROGRAM MEMORY PM OVERLAY 1,2 (EXTERNAL PM) INTERNAL PM PM OVERLAY 0,4,5 (INTERNAL PM) MODEB = 0 0x3FFF 0x2000 0x0000 0x1FFF 0x3FFF 0x2000 0x0000 0x3FE0 0x3FDF 0x1FFF DATA MEMORY DM OVERLAY 1,2 (EXTERNAL DM) INTERNAL DM 32 MEMORY-MAPPED CONTROL REGISTERS DM OVERLAY 0,4,5 (INTERNAL DM) PROGRAM MEMORY RESERVED EXTERNAL PM MODEB = 1 0x3FFF 0x2000 0x0000 0x1FFF PROGRAM MEMORY PM OVERLAY 1,2 (EXTERNAL PM) INTERNAL PM PM OVERLAY 0,4,5,6,7 (INTERNAL PM) MODEB = 0 0x3FFF 0x2000 0x0000 0x1FFF 0x3FFF 0x2000 0x0000 0x3FE0 0x3FDF 0x1FFF DATA MEMORY DM OVERLAY 1,2 (EXTERNAL DM) INTERNAL DM 32 MEMORY-MAPPED CONTROL REGISTERS DM OVERLAY 0,4,5,6,7,8 (INTERNAL DM) PROGRAM MEMORY RESERVED EXTERNAL PM MODEB = 1 0x3FFF 0x2000 0x0000 0x1FFF PROGRAM MEMORY PM OVERLAY 1,2 (EXTERNAL PM) INTERNAL PM PM OVERLAY 0,4,5 (INTERNAL PM) MODEB = 0 0x3FFF 0x2000 0x0000 0x1FFF 0x3FFF 0x2000 0x0000 0x3FE0 0x3FDF 0x1FFF DATA MEMORY DM OVERLAY 1,2 (EXTERNAL DM) INTERNAL DM 32 MEMORY-MAPPED CONTROL REGISTERS DM OVERLAY 0,4,5,6,7 (INTERNAL DM) PROGRAM MEMORY RESERVED EXTERNAL PM MODEB = 1 0x3FFF 0x2000 0x0000 0x1FFF |
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