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AT90PWM2 Datasheet(PDF) 307 Page - ATMEL Corporation |
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AT90PWM2 Datasheet(HTML) 307 Page - ATMEL Corporation |
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307 / 365 page  307 AT90PWM2/3 4317B–AVR–02/05 Note: a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data in, x = don’t care SPI Serial Programming Characteristics For characteristics of the SPI module see “SPI Serial Programming Characteristics” on page 307. Write EEPROM Memory 1100 0000 000x xxaa bbbb bbbb iiii iiii Write data i to EEPROM memory at address a:b. Load EEPROM Memory Page (page access) 1100 0001 0000 0000 0000 00bb iiii iiii Load data i to EEPROM memory page buffer. After data is loaded, program EEPROM page. Write EEPROM Memory Page (page access) 1100 0010 00xx xxaa bbbb bb 00 xxxx xxxx Write EEPROM page at address a:b. Read Lock bits 0101 1000 0000 0000 xxxx xxxx xxoo oooo Read Lock bits. “0” = programmed, “1” = unprogrammed. See Table 117 on page 287 for details. Write Lock bits 1010 1100 111x xxxx xxxx xxxx 11ii iiii Write Lock bits. Set bits = “0” to program Lock bits. See Table 117 on page 287 for details. Read Signature Byte 0011 0000 000x xxxx xxxx xxbb oooo oooo Read Signature Byte o at address b. Write Fuse bits 1010 1100 1010 0000 xxxx xxxx iiii iiii Set bits = “0” to program, “1” to unprogram. See Table XXX on page XXX for details. Write Fuse High bits 1010 1100 1010 1000 xxxx xxxx iiii iiii Set bits = “0” to program, “1” to unprogram. See Table 121 on page 290 for details. Write Extended Fuse Bits 1010 1100 1010 0100 xxxx xxxx xxxx xxii Set bits = “0” to program, “1” to unprogram. See Table 120 on page 289 for details. Read Fuse bits 0101 0000 0000 0000 xxxx xxxx oooo oooo Read Fuse bits. “0” = programmed, “1” = unprogrammed. See Table XXX on page XXX for details. Read Fuse High bits 0101 1000 0000 1000 xxxx xxxx oooo oooo Read Fuse High bits. “0” = pro- grammed, “1” = unprogrammed. See Table 121 on page 290 for details. Read Extended Fuse Bits 0101 0000 0000 1000 xxxx xxxx oooo oooo Read Extended Fuse bits. “0” = pro- grammed, “1” = unprogrammed. See Table 120 on page 289 for details. Read Calibration Byte 0011 1000 000x xxxx 0000 0000 oooo oooo Read Calibration Byte Poll RDY/BSY 1111 0000 0000 0000 xxxx xxxx xxxx xxxo If o = “1”, a programming operation is still busy. Wait until this bit returns to “0” before applying another command. Table 132. Serial Programming Instruction Set (Continued) Instruction Instruction Format Operation Byte 1 Byte 2 Byte 3 Byte4 |
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