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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega32HVB датащи(PDF) 204 Page - ATMEL Corporation |
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ATmega32HVB датащи(HTML) 204 Page - ATMEL Corporation |
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204 / 273 page  204 8042A–AVR–07/09 ATmega16HVB/32HVB 29.8.13 ATmega16HVB Boot Loader Parameters In Table 29-5 through Table 29-7, the parameters used in the description of the Self-Program- ming are given Note: 1. The different BOOTSZ Fuse configurations are shown in Figure 29-2 Note: 1. For details about these two section, see ”NRWW – No Read-While-Write Section” on page 192 and ”RWW – Read-While-Write Section” on page 192. Table 29-5. Boot Size Configuration(1) 1 1 256 words 4 0x0000 - 0x1EFF 0x1F00 - 0x1FFF 0x1EFF 0x1F00 1 0 512 words 8 0x0000 - 0x1DFF 0x1E00 - 0x1FFF 0x1DFF 0x1E00 0 1 1024 words 16 0x0000 - 0x1BFF 0x1C00 - 0x1FFF 0x1BFF 0x1C00 0 0 2048 words 32 0x0000 - 0x17FF 0x1800 - 0x1FFF 0x17FF 0x1800 Table 29-6. Read-While-Write Limit (1) Section Pages Address Read-While-Write section (RWW) 96 0x0000 - 0x17FF No Read-While-Write section (NRWW) 32 0x1800 - 0x1FFF Table 29-7. Explanation of different variables used in Figure 29-3 on page 196 and the map- ping to the Z-pointer (1) Variable Corresponding Z-value Description PCMSB 12 Most significant bit in the Program Counter. (The Program Counter is 13 bits PC[12:0]) PAGEMSB 5 Most significant bit which is used to address the words within one page (64 words in a page requires six bits PC [5:0]). ZPCMSB Z13 Bit in Z-register that is mapped to PCMSB. Because Z0 is not used, the ZPCMSB equals PCMSB + 1. ZPAGEMSB Z6 Bit in Z-register that is mapped to PCMSB. Because Z0 is not used, the ZPAGEMSB equals PAGEMSB + 1. PCPAGE PC[12:6] Z12:Z7 Program Counter page address: Page select, for Page Erase and Page Write PCWORD PC[5:0] Z6:Z1 Program Counter word address: Word select, for filling temporary buffer (must be zero during Page Write operation) |
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