ATmega16 Atmel Corporation, ATmega16 Datasheet - Page 229

• Manufacturer Part Number: ATmega16
• Manufacturer: Atmel Corporation

Specifications of ATmega16

• Flash (kbytes): 16 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): 1
• Eeprom (bytes): 512
• 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
2466T–AVR–07/10
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 0x1 and so on. However, some
revisions deviate from this rule, and the relevant version number is shown in
Table 87. JTAG Version Numbers
The part number is a 16-bit code identifying the component. The JTAG Part Number for
ATmega16 is listed in
Table 88. 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 89. 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
Version
ATmega16 revision G
ATmega16 revision H
ATmega16 revision I
ATmega16 revision J
ATmega16 revision K
ATmega16 revision L
Part Number
ATmega16
Manufacturer
ATMEL
shows the structure of the Device Identification Register.
MSB
31
Version
25) after releasing the Reset Register. The output from this Data Register is
4 bits
Table
Table
28
89.
88.
27
Part Number
16 bits
12
JTAG Version Number (Hex)
JTAG Manufacturer ID (Hex)
11
JTAG Part Number (Hex)
Manufacturer ID
11 bits
0x9403
0x01F
0xE
0xA
0xB
0x6
0x8
0x9
Figure
ATmega16(L)
115.
1
Table
LSB
1 bit
0
1
87.
“Clock
229