PCIF0 datasheet(252/294 Pages) ATMEL

252 / 294 page

252

9219A–RFID–01/11

Atmel ATA5505 [Preliminary]

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 corresponding 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 http://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 22-8 on page

253.

Write EEPROM Memory

0xC0

0x00

00aa aaaa b

data byte in

Write EEPROM Memory Page (page access)

0xC2

0x00

00aa aa00

0x00

Write Lock bits

0xAC

0xE0

0x00

data byte in

Write Fuse bits

0xAC

0xA0

0x00

data byte in

Write Fuse High bits

0xAC

0xA8

0x00

data byte in

Write Extended Fuse Bits

0xAC

0xA4

0x00

data byte in

Table 22-15. Serial Programming Instruction Set (Continued)

Instruction/Operation

Instruction Format

Byte 1

Byte 2

Byte 3

Byte4

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