ATMEGA64_14 Datasheet, PDF (310/414 Pages) ATMEL Corporation – High-performance, Low-power Atmel AVR

ATmega64(L)
Table 129. SPI Serial Programming Instruction Set (Continued)
Instruction Format
Instruction
Byte 1
Byte 2
Byte 3
Byte 4
Operation
Read Extendend Fuse
Bits
0101 0000
0000 1000
xxxx xxxx
oooo oooo
Read Extended Fuse bits. “0” =
pro-grammed, “1” =
unprogrammed. See Table 119 on
page 292 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 118 on page 292 for
details.
Read Calibration Byte
0011 1000
00xx xxxx
0000 00bb
oooo oooo Read Calibration Byte o at address
b.
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 Timing Characteristics” on page 330.
2490R–AVR–02/2013
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