Datasheet

248
ATmega162/V
2513G–AVR–03/05
Note: 1. 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 267.
Read Fuse High Bits
0101 1000 0000 1000 xxxx xxxx oooo oooo Read Fuse high bits. “0” = pro-
grammed, “1” = unprogrammed.
See
Table 100 on page 232 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 99 on
page 231
for details.
Read Calibration Byte 0011 1000 00xx 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 111. SPI Serial Programming Instruction Set
(1)
(Continued)
Instruction Instruction Format Operation
Byte 1 Byte 2 Byte 3 Byte4