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24FC32 Datasheet(PDF) 10 Page - Microchip Technology |
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24FC32 Datasheet(HTML) 10 Page - Microchip Technology |
10 / 12 page 24FC32 DS21126B-page 3-10 © 1996 Microchip Technology Inc. FIGURE 7-1: CACHE WRITE TO THE ARRAY STARTING AT A PAGE BOUNDARY FIGURE 7-2: CACHE WRITE TO THE ARRAY STARTING AT A NON-PAGE BOUNDARY 1 Write command initiated at byte 0 of page 3 in the array; First data byte is loaded into the cache byte 0. 2 64 bytes of data are loaded into cache. cache page 0 cache byte 0 cache byte 1 • • • cache byte 7 cache page 1 bytes 8-15 cache page 2 bytes 16-23 • • • cache page 7 bytes 56-63 4 Remaining pages in cache are written to sequential pages in array. page 0 page 1 page 2 byte 0 byte 1 • • • byte 7 page 4 • • • page 0 page 1 page 2 page 3 page 4 • • • page 7 page 7 array row n array row n + 1 3 Write from cache into array initiated by STOP bit. Page 0 of cache written to page 3 of array. Write cycle is executed after every page is written. 5 Last page in cache written to page 2 in next row. 1 Write command initiated; 64 bytes of data loaded into cache starting at byte 2 of page 0. cache byte 0 cache byte 1 • • • cache byte 7 cache page 1 bytes 8-15 cache page 2 bytes 16-23 • • • cache page 7 bytes 56-63 page 0 page 1 page 2 byte 0 byte 1 page 4 • • • page 0 page 1 page 2 page 3 page 4 • • • page 7 page 7 4 Write from cache into array initiated by STOP bit. Page 0 of cache written to page 3 of array. Write cycle is executed after every page is written. 6 Last 3 pages in cache written to next row in array. cache byte 2 2 Last 2 bytes ‘roll ever’ to beginning. 3 5 Remaining bytes in cache are written sequentially to array. Last 2 bytes loaded into page 0 of cache. byte 2 byte 3 byte 4 • • • byte 7 array row n array row n+1 |
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