ATmega32 Atmel Corporation, ATmega32 Datasheet - Page 226

• Manufacturer Part Number: ATmega32
• Manufacturer: Atmel Corporation

Specifications of ATmega32

• 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

Device Identification
Register
Version
Part Number
Manufacturer ID
Reset Register
2503Q–AVR–02/11
controller state. The Bypass Register can be used to shorten the scan chain on a system when
the other devices are to be tested.
Figure 114
Figure 114. The Format of the Device Identification Register
Version is a 4-bit number identifying the revision of the component. The JTAG version number
follows the revision of the device. Revision A is 0x0, revision B is x1 and so on.
The part number is a 16-bit code identifying the component. The JTAG Part Number for
ATmega32 is listed in
Table 87. AVR JTAG Part Number
The Manufacturer ID is a 11 bit code identifying the manufacturer. The JTAG manufacturer ID
for Atmel is listed in
Table 88. Manufacturer ID
The Reset Register is a Test Data Register used to reset the part. Since the AVR tri-states Port
Pins when reset, the Reset Register can also replace the function of the unimplemented optional
JTAG instruction HIGHZ.
A high value in the Reset Register corresponds to pulling the External Reset low. The part is
reset as long as there is a high value present in the Reset Register. Depending on the Fuse set-
tings for the clock options, the part will remain reset for a Reset Time-Out Period (refer to
Sources” on page
not latched, so the reset will take place immediately, as shown in
Bit
Device ID
shows the structure of the Device Identification Register.
Manufacturer
Part Number
31
MSB
ATmega32
Version
25) after releasing the Reset Register. The output from this Data Register is
Atmel
4 bits
Table
Table
28
88.
87.
27
Part Number
16 bits
12
11
JTAG Part Number (Hex)
JTAG Man. ID (Hex)
Manufacturer ID
11 bits
0x9502
0x01F
Figure
ATmega32(L)
115.
1
LSB
1 bit
0
1
“Clock
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