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ATtiny167-ESSZ bảng dữ liệu(PDF) 226 Page - ATMEL Corporation |
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ATtiny167-ESSZ bảng dữ liệu(HTML) 226 Page - ATMEL Corporation |
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226 / 282 page ![]() 226 7728D–AVR–07/09 ATtiny87/ATtiny167 Note that the fuses are read as logical zero, “0”, if they are programmed. Notes: 1. See ”Alternate Functions of Port B” on page 81. for description of RSTDISBL Fuse. 2. The SPIEN Fuse is not accessible in serial programming mode. 3. See ”Watchdog Timer Control Register - WDTCR” on page 57. for details. 4. See Table 22-5 on page 247 for BODLEVEL Fuse coding. Table 21-3. Extended Fuse Byte Fuse Extended Byte Bit No Description Default Value – 7 – 1 (unprogrammed) – 6 – 1 (unprogrammed) – 5 – 1 (unprogrammed) – 4 – 1 (unprogrammed) – 3 – 1 (unprogrammed) – 2 – 1 (unprogrammed) – 1 – 1 (unprogrammed) SELFPRGEN 0 Self Programming Enable 1 (unprogrammed) Table 21-4. Fuse High Byte Fuse High Byte Bit No Description Default Value RSTDISBL(1) 7 External Reset Disable 1 (unprogrammed) DWEN 6 DebugWIRE Enable 1 (unprogrammed) SPIEN(2) 5 Enable Serial Program and Data Downloading 0 (programmed, SPI programming enabled) WDTON(3) 4 Watchdog Timer always on 1 (unprogrammed) EESAVE 3 EEPROM memory is preserved through the Chip Erase 1 (unprogrammed, EEPROM not preserved) BODLEVEL2(4) 2 Brown-out Detector trigger level 1 (unprogrammed) BODLEVEL1(4) 1 Brown-out Detector trigger level 1 (unprogrammed) BODLEVEL0(4) 0 Brown-out Detector trigger level 1 (unprogrammed) |
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