Atmel ATmega32M1 User Manual

316
7647H–AVR–03/12
Atmel ATmega16/32/64/M1/C1
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
25.9.4 SPI Serial Programming Characteristics
For characteristics of the SPI module see “SPI Serial Programming Characteristics” on page
316.
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 bb00 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 25-1 on
page 296 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 25-1 on
page 296 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 25-6 on page
299 for details.
Write Extended Fuse Bits
1010 1100 1010 0100 xxxx xxxx xxii iiii Set bits = “0” to program, “1” to
unprogram. See
Table 25-4 on page
298
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 25-6 on page 299 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 25-4 on page 298 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 25-17. Serial Programming Instruction Set (Continued)
Instruction
Instruction Format
OperationByte 1 Byte 2 Byte 3 Byte4

Atmel ATmega32M1 Specifications

General

Brand	Atmel
Model	ATmega32M1
Category	Microcontrollers
Language	English