ATMEGA323-8AC Atmel, ATMEGA323-8AC Datasheet - Page 206

• Manufacturer Part Number: ATMEGA323-8AC
• Description: IC AVR MCU 32K 8MHZ COM 44TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA323-8AC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: ATMEGA3238AC

Table 71. JTAG Programming Instruction Set (Continued)
Notes:
206
Instruction
6c. Write Fuse High Byte
6d. Poll for Fuse Write complete
6e. Load Data Low Byte
6f. Write Fuse Low Byte
6g. Poll for Fuse Write complete
7a. Enter Lock Bit Write
7b. Load Data Byte
7c. Write Lock Bits
7d. Poll for Lock Bit Write complete
8a. Enter Fuse/Lock Bit Read
8b. Read Fuse High Byte
8c. Read Fuse Low Byte
8d. Read Lock Bits
8e. Read Fuses and Lock Bits
9a. Enter Signature Byte Read
9b. Load Address Byte
9c. Read Signature Byte
10a. Enter Calibration Byte Read
10b. Load Address Byte
10c. Read Calibration Byte
11a. Load No Operation Command
2. Repeat until o = “1”
3. Set bits to “0” to program the corresponding fuse,
1. This command sequence is not required if the seven MSB are correctly set by the previous command sequence (which is
ATmega323(L)
normally the case).
0110111_00000000
0110101_00000000
0110111_00000000
0110111_00000000
0010011_CB11A987
0110011_00000000
0110001_00000000
0110011_00000000
0110011_00000000
0100011_00100000
0010011_11654321
0110011_00000000
0110001_00000000
0110011_00000000
0110011_00000000
0100011_00000100
0111110_00000000
0111111_00000000
0110010_00000000
0110011_00000000
0110110_00000000
0110111_00000000
0111110_00000000
0110010_00000000
0110110_00000000
0110111_00000000
0100011_00001000
0000011_bbbbbbbb
0110010_00000000
0110011_00000000
0100011_00001000
0000011_bbbbbbbb
0110110_00000000
0110111_00000000
0100011_00000000
0110011_00000000
TDI sequence
“1”
to unprogram the fuse.
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xxxxxox_xxxxxxxx
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xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_IHxxGFED
xxxxxxx_xxxxxxxx
xxxxxxx_CBxxA987
xxxxxxx_xxxxxxxx
xxxxxxx_xx654321
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
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xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
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xxxxxxx_oooooooo
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TDO sequence
Notes
(1)
(2)
(3)
(1)
(2)
(4)
(1)
(2)
(5)
(5)
Fuse High Byte
Fuse Low Byte
Lock bits
1457G–AVR–09/03