ATMEGA644PV ATMEL [ATMEL Corporation], ATMEGA644PV Datasheet - Page 308

• Manufacturer Part Number: ATMEGA644PV
• Description: 8-bit Microcontroller with 16/32/64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

25.9
Table 25-17. Serial Programming Instruction Set (Hexadecimal values)
308
Instruction/Operation
Programming Enable
Chip Erase (Program Memory/EEPROM)
Poll RDY/BSY
Load Instructions
Load Extended Address byte
Load Program Memory Page, High byte
Load Program Memory Page, Low byte
Load EEPROM Memory Page (page access)
Read Instructions
Read Program Memory, High byte
Read Program Memory, Low byte
Read EEPROM Memory
Read Lock bits
Read Signature Byte
Read Fuse bits
Read Fuse High bits
Read Extended Fuse Bits
Read Calibration Byte
Write Instructions
Write Program Memory Page
Write EEPROM Memory
Write EEPROM Memory Page (page access)
Write Lock bits
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
Serial Programming Instruction set
ATmega164P/324P/644P
(6)
Table 25-16. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Table 25-17 on page 308
(1)
Symbol
t
t
t
WD_FLASH
WD_EEPROM
WD_ERASE
Byte 1
$AC
$AC
$4D
$C1
$4C
$C0
$C2
$AC
$AC
$AC
$AC
$F0
$A0
$50
$38
$48
$40
$28
$20
$58
$30
$50
$58
and
Figure 25-11 on page 309
0000 00aa
0000 00aa
0000 00aa
adr MSB
adr MSB
adr MSB
Byte 2
$E0
$A0
$A8
$A4
$53
$80
$00
$00
$00
$00
$00
$00
$00
$00
$08
$08
$00
Instruction Format
Minimum Wait Delay
describes the Instruction set.
Extended adr
0000 000aa
0000 000aa
aaaa aaaa
aaaa aaaa
aaaa aa00
4.5 ms
9.0 ms
9.0 ms
adr LSB
adr LSB
adr LSB
adr LSB
adr LSB
Byte 3
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
high data byte out
low data byte out
high data byte in
low data byte in
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte in
data byte in
data byte in
data byte in
data byte in
data byte in
8011D–AVR–02/07
Byte4
$00
$00
$00
$00
$00