Atmel ATmega328P Xplained Mini MEGA328P-XMINI MEGA328P-XMINI Data Sheet
Product codes
MEGA328P-XMINI
297
ATmega48A/PA/88A/PA/168A/PA/328/P [DATASHEET]
Atmel-8271H-AVR- ATmega-Datasheet_08/2014
8.
Power-off sequence (if needed):
Set RESET to “1”.
Turn V
Set RESET to “1”.
Turn V
CC
power off.
28.8.3 Serial Programming Instruction set
describes the Instruction set.
Table 28-18.
Typical Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol
Minimum Wait Delay
t
WD_FLASH
4.5ms
t
WD_EEPROM
3.6ms
t
WD_ERASE
9.0ms
t
WD_FUSE
4.5ms
Table 28-19.
Serial Programming Instruction Set (Hexadecimal values)
Instruction/Operation
Instruction Format
Byte 1
Byte 2
Byte 3
Byte4
Programming Enable
$AC
$53
$00
$00
Chip Erase (Program Memory/EEPROM)
$AC
$80
$00
$00
Poll RDY/BSY
$F0
$00
$00
data byte out
Load Instructions
Load Extended Address byte
$4D
$00
Extended adr
$00
Load Program Memory Page, High byte
$48
$00
adr LSB
high data byte in
Load Program Memory Page, Low byte
$40
$00
adr LSB
low data byte in
Load EEPROM Memory Page (page access)
$C1
$00
0000 000aa
data byte in
Read Instructions
Read Program Memory, High byte
$28
adr MSB
adr LSB
high data byte out
Read Program Memory, Low byte
$20
adr MSB
adr LSB
low data byte out
Read EEPROM Memory
$A0
0000 00aa
aaaa aaaa
data byte out
Read Lock bits
$58
$00
$00
data byte out
Read Signature Byte
$30
$00
0000 000aa
data byte out
Read Fuse bits
$50
$00
$00
data byte out
Read Fuse High bits
$58
$08
$00
data byte out
Read Extended Fuse Bits
$50
$08
$00
data byte out
Read Calibration Byte
$38
$00
$00
data byte out
Write Instructions
Write Program Memory Page
$4C
adr MSB
adr LSB
$00
Write EEPROM Memory
$C0
0000 00aa
aaaa aaaa
data byte in
Write EEPROM Memory Page (page access)
$C2
0000 00aa
aaaa aa00
$00
Write Lock bits
$AC
$E0
$00
data byte in