ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 310

• Manufacturer Part Number: ATMEga64L
• Description: 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

Table 130. SPI Serial Programming Instruction Set
310
Instruction
Programming Enable
Chip Erase
Read Program Memory
Load Program Memory
Page
Write Program Memory
Page
Read EEPROM Memory
Write EEPROM Memory
Read Lock Bits
Write Lock Bits
Read Signature Byte
Write Fuse Bits
Write Fuse High Bits
Write Extended Fuse Bits
Read Fuse Bits
ATmega64(L)
1010 1100
1010 1100
0010 H000
0100 H000
0100 1100
1010 0000
1100 0000
0101 1000
1010 1100
0011 0000
1010 1100
1010 1100
1010 1100
0101 0000
Byte 1
0101 0011
100x xxxx
xaaa aaaa
xxxx xxxx
xaaa aaaa
xxxx xaaa
xxxx xaaa
0000 0000
111x xxxx
xxxx xxxx
1010 0000
1010 1000
1010 0100
0000 0000
Byte 2
Instruction Format
xxxx xxxx
xxxx xxxx
bbbb bbbb
xbbb bbbb
bxxx xxxx
bbbb bbbb
bbbb bbbb
xxxx xxxx
xxxx xxxx
xxxx xxbb
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
Byte 3
xxxx xxxx
xxxx xxxx
oooo oooo
iiii iiii
xxxx xxxx
oooo oooo
iiii iiii
xxoo oooo
11ii iiii
oooo oooo
iiii iiii
iiii iiii
xxxx xxii
oooo oooo
Byte4
Operation
Enable SPI Serial Programming
after RESET goes low.
Chip Erase EEPROM and Flash.
Read H (high or low) data o from
Program memory at word address
a:b.
Write H (high or low) data i to
Program Memory page at word
address b. Data low byte must be
loaded before data high byte is
applied within the same address.
Write Program Memory Page at
address a:b.
Read data o from EEPROM
memory at address a:b.
Write data i to EEPROM memory
at address a:b.
Read Lock bits. “0” = programmed,
“1” = unprogrammed. See Table
116 on page 290 for details.
Write Lock bits. Set bits = “0” to
program Lock bits. See Table 116
on page 290 for details.
Read Signature Byte o at address
b.
Set bits = “0” to program, “1” to
unprogram. See Table 120 on page
292 for details.
Set bits = “0” to program, “1” to
unprogram. See Table 119 on page
292 for details.
Set bits = “0” to program, “1” to
unprogram. See Table 120 on page
292 for details.
Read Fuse bits. “0” = programmed,
“1” = unprogrammed. See Table
120 on page 292 for details.
2490G–AVR–03/04