ATMEGA128-16MN Atmel, ATMEGA128-16MN Datasheet - Page 253

• Manufacturer Part Number: ATMEGA128-16MN
• Description: MCU AVR 128KB FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128-16MN

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCUATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bypass Register
Device Identification
Register
Version
Part Number
Manufacturer ID
Reset Register
2467V–AVR–02/11
The Bypass Register consists of a single Shift Register stage. When the Bypass Register is
selected as path between TDI and TDO, the register is reset to 0 when leaving the Capture-DR
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 122
Figure 122. 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, and wraps around at revision P (0xF). Revision A and Q is
0x0, revision B and R is 0x1 and so on.
The part number is a 16-bit code identifying the component. The JTAG Part Number for Atmel
AVR
Table 100. 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 101. 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
Part Number
ATmega128
Manufacturer
ATMEL
®
ATmega128 is listed in
shows the structure of the Device Identification Register.
MSB
31
Version
4 bits
36) after releasing the Reset Register. The output from this Data Register is
28
Table
27
101.
Table
Part Number
100.
16 bits
JTAG Manufacturer ID (Hex)
JTAG Part Number (Hex)
12
11
0x9702
Manufacturer ID
0x01F
11 bits
Figure
ATmega128
123.
1
1-bit
LSB
1
0
“Clock
253
®