ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 291

• Manufacturer Part Number: ATmega32A
• Manufacturer: Atmel Corporation

Specifications of ATmega32A

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 1024
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 26-15. JTAG Programming Instruction Set (Continued)
Notes:
8155C–AVR–02/11
Instruction
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
1. This command sequence is not required if the seven MSB are correctly set by the previous command sequence (which is
2. Repeat until o = “1”.
3. Set bits to “0” to program the corresponding fuse, “1” to unprogram the fuse.
4. Set bits to “0” to program the corresponding lock bit, “1” to leave the lock bit unchanged.
5. “0” = programmed, “1” = unprogrammed.
6. The bit mapping for fuses high byte is listed in
7. The bit mapping for fuses low byte is listed in
8. The bit mapping for Lock bits byte is listed in
9. Address bits exceeding PCMSB and EEAMSB
normally the case).
a = address high bits, b = address low bits, H = 0 – Low byte, 1 – High Byte, o = data out, i = data in, x = don’t care
(8)
(7)
(6)
TDI sequence
0110011_00000000
0110001_00000000
0110011_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
0000011_bbbbbbbb
0110110_00000000
0110111_00000000
0100011_00000000
0110011_00000000
0100011_00001000
Table 26-1 on page 266
Table 26-4 on page 268
Table 26-3 on page 267
(Table 26-5
and
Table
26-6) are don’t care
TDO sequence
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxoooooo
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_oooooooo
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxox_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
xxxxxxx_xxxxxxxx
ATmega32A
Notes
(1)
(2)
(5)
(5)
fuse high byte
fuse low byte
lock bits
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