Rainbow Electronics ATmega3290P_V - Manual (Page 300)

300
ATmega329/3290/649/6490
2552H–AVR–11/06
Notes: 1. Not all instructions are applicable for all parts
2. a = address
3. Bits are programmed ‘0’, unprogrammed ‘1’.
4. To ensure future compatibility, unused Fuses and Lock bits should be unprogrammed
(‘1’) .
5. Refer to the correspondig section for Fuse and Lock bits, Calibration and Signature
bytes and Page size.
6. See htt://www.atmel.com/avr for Application Notes regarding programming and
programmers.
If the LSB in RDY/BSY data byte out is ‘1’, a programming operation is still pending.
Wait until this bit returns ‘0’ before the next instruction is carried out.
Within the same page, the low data byte must be loaded prior to the high data byte.
After data is loaded to the page buffer, program the EEPROM page, see Figure 131.
Figure 131. Serial Programming Instruction example
SPI Serial Programming
Characteristics For characteristics of the SPI module see “SPI Timing Characteristics” on page 316.
Byte 1 Byte 2 Byte 3 Byte 4
Adr LSB
Bit 15 B 0
Serial Programming Instruction
Program Memory/
EEPROM Memory
Page 0
Page 1
Page 2
Page N-1
Page Buffer
Write Program Memory Page/
Write EEPROM Memory Page Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Byte 1 Byte 2 Byte 3 Byte 4
Bit 15 B 0
Adr MSB
Page Offset
Page Number
Adr M MS SB A A Adrr L LSB B