atmega323l ATMEL Corporation, atmega323l Datasheet - Page 211
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atmega323l
Manufacturer Part Number
atmega323l
Description
Atmega323 8-bit Avr Microcontroller With 32k Bytes Of In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATMEGA323L.pdf
(247 pages)
- Current page: 211 of 247
- Download datasheet (4Mb)
Programming the EEPROM
Reading the EEPROM
Programming the Fuses
Programming the Lock Bits
Reading the Fuses and Lock
Bits
1457G–AVR–09/03
6. Enter JTAG instruction PROG_COMMANDS.
7. Repeat steps 3 to 6 until all data have been read.
1. Enter JTAG instruction PROG_COMMANDS.
2. Enable EEPROM write using programming instruction 4a.
3. Load address using programming instructions 4b and 4c.
4. Load data using programming instructions 4d.
5. Write the data using programming instruction 4e.
6. Poll for EEPROM write complete using programming instruction 4f, or wait for
7. Repeat steps 3 to 6 until all data have been programmed.
1. Enter JTAG instruction PROG_COMMANDS.
2. Enable EEPROM read using programming instruction 5a.
3. Load address using programming instructions 5b and 5c.
4. Read data using programming instruction 5d.
5. Repeat steps 3 and 4 until all data have been read.
1. Enter JTAG instruction PROG_COMMANDS.
2. Enable Fuse write using programming instruction 6a.
3. Load data High Byte using programming instructions 6b. A bit value of “0” will
4. Write Fuse High Byte using programming instruction 6c.
5. Poll for Fuse write complete using programming instruction 6d, or wait for t
6. Load data Low Byte using programming instructions 6e. A “0” will program the
7. Write Fuse Low Byte using programming instruction 6f.
8. Poll for Fuse write complete using programming instruction 6g, or wait for t
1. Enter JTAG instruction PROG_COMMANDS.
2. Enable Lock bit write using programming instruction 7a.
3. Load data using programming instructions 7b. A bit value of “0” will program the
4. Write Lock bits using programming instruction 7c.
5. Poll for Lock bit write complete using programming instruction 7d, or wait for
1. Enter JTAG instruction PROG_COMMANDS.
2. Enable Fuse/Lock bit read using programming instruction 8a.
3. To read all Fuses and Lock bits, use programming instruction 8e.
t
program the corresponding fuse, a “1” will unprogram the fuse.
(refer to Table 67 on page 196).
fuse, a “1” will unprogram the fuse.
(refer to Table 67 on page 196).
corresponding lock bit, a “1” will leave the lock bit unchanged.
t
To only read Fuse High Byte, use programming instruction 8b.
To only read Fuse Low Byte, use programming instruction 8c.
To only read Lock bits, use programming instruction 8d.
WLRH
WLRH
(refer to Table 67 on page 196).
(refer to Table 67 on page 196).
ATmega323(L)
WLRH
WLRH
211
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