Rainbow-electronics ATtiny43U Manual de usuario descargar pdf (Pagina 154)

154

8048B–AVR–03/09

ATtiny43U

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 19-8 on page

154.

Figure 19-8. Serial Programming Instruction example

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 19-16. Serial Programming Instruction Set (Continued)

Instruction/Operation

(1)

Instruction Format

Byte 1 Byte 2 Byte 3 Byte4

Byte 1 Byte 2 Byte 3 Byte 4

Adr MSB

Adr LSB

Bit 15 B 0

Serial Programming Instruction

Program Memory/

EEPROM Memory

Page 0

Page 1

Page 2

Page N-1

Page Buffer

Write Program Memory Page/

Write EEPROM Memory Page

Load Program Memory Page (High/Low Byte)/

Load EEPROM Memory Page (page access)

Byte 1 Byte 2 Byte 3 Byte 4

Bit 15 B 0

Adr MSB

Adr LSB

Page Offset

Page Number

Adr

dr M

r MS

Adr

dr LS

LSB

1 2 ... 149 150 151 152 153 154 155 156 157 158 159 ... 181 182

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