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ADSP-2115KP-80 Datasheet(PDF) 11 Page - Analog Devices |
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ADSP-2115KP-80 Datasheet(HTML) 11 Page - Analog Devices |
11 / 64 page ADSP-21xx REV. B –11– ADSP-2101/ADSP-2103/ADSP-2111 When MMAP = 0, on-chip program memory RAM occupies 2K words beginning at address 0x0000. Off-chip program memory uses the remaining 14K words beginning at address 0x0800. In this configuration–when MMAP = 0–the boot loading sequence (described below in “Boot Memory Inter- face”) is automatically initiated when RESET is released. When MMAP = 1, 14K words of off-chip program memory begin at address 0x0000 and on-chip program memory RAM is located in the upper 2K words, beginning at address 0x3800. In this configuration, program memory is not booted although it can be written to and read under program control. ADSP-2105/ADSP-2115 When MMAP = 0, on-chip program memory RAM occupies 1K words beginning at address 0x0000. Off-chip program memory uses the remaining 14K words beginning at address 0x0800. In this configuration–when MMAP = 0–the boot loading sequence (described below in “Boot Memory Inter- face”) is automatically initiated when RESET is released. When MMAP = 1, 14K words of off-chip program memory begin at address 0x0000 and on-chip program memory RAM is located in the 1K words between addresses 0x3800–0x3BFF. In this configuration, program memory is not booted although it can be written to and read under program control. INTERNAL RAM LOADED FROM EXTERNAL BOOT MEMORY EXTERNAL 0x07FF 0x0800 0x3FFF 0x0000 EXTERNAL No Booting 0x37FF 0x3800 0x3FFF 0x0000 MMAP=0 MMAP=1 INTERNAL RAM 2K 14K 2K 14K Figure 6. ADSP-2101/ADSP-2103/ADSP-2111 Program Memory Maps Figure 8. ADSP-2105/ADSP-2115 Program Memory Maps Figure 7. ADSP-2161/62 Program Memory Maps Figure 9. ADSP-2163/64 Program Memory Maps 0x07FF 0x0800 0x1FF0 0x1FFF 0x2000 0x1FF0 0x1FFF 0x2000 MMAP=0 0x3FFF 0x0000 8K EXTERNAL 8K INTERNAL ROM 0x0000 MMAP=1 0x3FFF 0x3800 0x37FF 2K EXTERNAL 6K INTERNAL ROM 6K EXTERNAL 2K INTERNAL ROM RESERVED RESERVED INTERNAL RAM LOADED FROM EXTERNAL BOOT MEMORY EXTERNAL 0x03FF 0x0400 0x3FFF 0x0000 EXTERNAL 0x3BFF 0x3C00 0x3FFF 0x0000 MMAP=0 MMAP=1 No Booting 0x37FF 0x3800 0x07FF 0x0800 RESERVED 1K 14K 14K 1K INTERNAL RAM 1K 1K RESERVED 4K INTERNAL ROM 12K EXTERNAL 0x3FFF 0x0000 2K EXTERNAL 0x3FFF 0x0000 MMAP=0 MMAP=1 0x37FF 0x3800 2K INTERNAL ROM 2K INTERNAL ROM 10K EXTERNAL 0x07FF 0x0800 0x0FF0 0x0FFF 0x1000 0x0FF0 RESERVED RESERVED 0x0FFF 0x1000 |
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