ATA8741 ATMEL Corporation, ATA8741 Datasheet - Page 187

• Manufacturer Part Number: ATA8741
• Manufacturer: ATMEL Corporation

Table 28-11. Serial Programming Instruction Set (Continued)
Notes:
Figure 28-2. Serial Programming Instruction example
9140B–INDCO–07/09
Instruction/Operation
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
Byte 1
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. Instructions accessing program memory use a word address. This address may be random within the page range.
7. See htt://www.atmel.com/avr for Application Notes regarding programming and programmers.
Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Bit 15 B
Byte 2
Adr M M S S B
A
(1)
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
187.
Byte 3
Adr LSB
Page Offset
0
Serial Programming Instruction
Byte 4
Byte 1
$AC
$AC
$AC
Program Memory/
EEPROM Memory
Page Buffer
Page N-1
Page 0
Page 1
Page 2
Byte 1
Byte 2
$A0
$A8
$A4
Instruction Format
Page Number
Bit 15 B
Byte 2
Write Program Memory Page/
Write EEPROM Memory Page
Adr MSB
Byte 3
$00
$00
$00
Byte 3
A A dr r L L SB B
Figure 28-2 on page
ATA8741
0
data byte in
data byte in
data byte in
Byte4
Byte 4
187