ATmega16A datasheet(279/352 Pages) ATMEL

279 / 352 page

279

8154B–AVR–07/09

ATmega16A

Notes:

1. Not all instructions are applicable for all parts.

2. a = address

3. Bits are programmed ‘0’, unprogrammed ‘1’.

4. To ensure future compatibility, unused Fuses and Lock bits should be unprogrammed (‘1’) .

5. Refer to the correspondig section for Fuse and Lock bits, Calibration and Signature bytes and Page size.

6. See htt://www.atmel.com/avr for Application Notes regarding programming and programmers.

If the LSB in RDY/BSY data byte out is ‘1’, a programming operation is still pending. Wait until

this bit returns ‘0’ before the next instruction is carried out.

Within the same page, the low data byte must be loaded prior to the high data byte.

After data is loaded to the page buffer, program the EEPROM page, see Figure 26-8 on page

280.

Read Calibration Byte

$38

$00

$0b00 000bb

data byte out

Write Instructions

Write Program Memory Page

$4C

000a aaaa

aa00 0000

$00

Write EEPROM Memory

$C0

adr MSB

adr LSB

data byte in

Write EEPROM Memory Page (page access)(1)

$C2

adr MSB

adr LSB

$00

Write Lock bits

$AC

$E0

$00

data byte in

Write Fuse bits

$AC

$A0

$00

data byte in

Write Fuse High bits

$AC

$A8

$00

data byte in

Write Extended Fuse Bits

$AC

$A4

$00

data byte in

Table 26-13. Serial Programming Instruction Set (Hexadecimal values) (Continued)

Instruction(1)/Operation

Instruction Format

Byte 1

Byte 2

Byte 3

Byte4

ATmega16A Datasheet(PDF) 279 Page - ATMEL Corporation

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