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MCP39F521 датащи(PDF) 42 Page - Microchip Technology |
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MCP39F521 датащи(HTML) 42 Page - Microchip Technology |
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42 / 52 page ![]() MCP39F521 DS20005442A-page 42 2015 Microchip Technology Inc. 9.0 EEPROM The data EEPROM is organized as 16-bit wide memory. Each word is directly addressable, and is readable and writable across the entire VDD range. The MCP39F521 has 256 16-bit words of EEPROM that is organized in 32 pages for a total of 512 bytes. There are three commands that support access to the EEPROM array. • EEPROM Page Read (0x42) • EEPROM Page Write (0x50) • EEPROM Bulk Erase (0x4F) TABLE 9-1: EXAMPLE EEPROM COMMANDS AND DEVICE RESPONSE Command Command ID BYTE 0 BYTE 1-N # Bytes Successful Response Page Read EEPROM 0x42 PAGE 2 ACK, Data, Checksum Page Write EEPROM 0x50 PAGE + 16 BYTES OF DATA 18 ACK Bulk Erase EEPROM 0x4F --------- 1 ACK TABLE 9-2: MCP39F521 EEPROM ORGANIZATION Page 00 02 04 06 08 0A 0C 0E 0 0000 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 1 0010 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 2 0020 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 3 0030 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 4 0040 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 5 0050 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 6 0060 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 7 0070 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 8 0080 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 9 0090 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 10 00A0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 11 00B0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 12 00C0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 13 00D0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 14 00E0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 15 00F0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 16 0100 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 17 0110 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 18 0120 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 19 0130 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 20 0140 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 21 0150 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 22 0160 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 23 0170 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 24 0180 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 25 0190 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 26 01A0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 27 01B0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 28 01C0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 29 01D0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 30 01E0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF 31 01F0 FFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFF |
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