atmega32c1 ATMEL Corporation, atmega32c1 Datasheet - Page 308

• Manufacturer Part Number: atmega32c1
• Description: Atmega32m1 Automotive 8-bit Avr Microcontroller With 32k/64k Bytes In-system Programmable Flash
• Manufacturer: ATMEL Corporation

Table 24-17. Serial Programming Instruction Set (Continued)
Note:
24.9.4
308
Instruction
Load EEPROM Memory
Page (page access)
Write EEPROM Memory
Page (page access)
Read Lock bits
Write Lock bits
Read Signature Byte
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
Read Fuse bits
Read Fuse High bits
Read Extended Fuse Bits
Read Calibration Byte
Poll RDY/BSY
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
ATmega32/64/M1/C1
SPI Serial Programming Characteristics
For characteristics of the SPI module see “SPI Serial Programming Characteristics” on page
308.
1100 0001
1100 0010
0101 1000
1010 1100
0011 0000
1010 1100
1010 1100
1010 1100
0101 0000
0101 1000
0101 0000
0011 1000
1111 0000
Byte 1
0000 0000
00xx xxaa
0000 0000
111x xxxx
000x xxxx
1010 0000
1010 1000
1010 0100
0000 0000
0000 1000
0000 1000
000x xxxx
0000 0000
Byte 2
Instruction Format
0000 00bb
bbbb bb00
xxxx xxxx
xxxx xxxx
xxxx xxbb
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
0000 0000
xxxx xxxx
Byte 3
iiii iiii
xxxx xxxx
xxoo oooo
11ii iiii
oooo oooo
iiii iiii
iiii iiii
xxxx xxii
oooo oooo
oooo oooo
oooo oooo
oooo oooo
xxxx xxxo
Byte4
Operation
Load data i to EEPROM memory page
buffer. After data is loaded, program
EEPROM page.
Write EEPROM page at address a:b.
Read Lock bits. “0” = programmed, “1”
= unprogrammed. See
page 289
Write Lock bits. Set bits = “0” to
program Lock bits. See
page 289
Read Signature Byte o at address b.
Set bits = “0” to program, “1” to
unprogram. See Table XXX on page
XXX for details.
Set bits = “0” to program, “1” to
unprogram. See
292
Set bits = “0” to program, “1” to
unprogram. See
290
Read Fuse bits. “0” = programmed, “1”
= unprogrammed. See Table XXX on
page XXX for details.
Read Fuse High bits. “0” = pro-
grammed, “1” = unprogrammed. See
Table 24-6 on page 292
Read Extended Fuse bits. “0” = pro-
grammed, “1” = unprogrammed. See
Table 24-4 on page 290
Read Calibration Byte
If o = “1”, a programming operation is
still busy. Wait until this bit returns to
“0” before applying another command.
for details.
for details.
for details.
for details.
Table 24-6 on page
Table 24-4 on page
Table 24-1 on
Table 24-1 on
for details.
7647A–AVR–02/08
for details.