ATMEGA162L-8AI Atmel, ATMEGA162L-8AI Datasheet - Page 202

• Manufacturer Part Number: ATMEGA162L-8AI
• Description: IC MCU AVR 16K 3V 8MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162L-8AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Data Registers
Bypass Register
Device Identification Register
Version
Part Number
Manufacturer ID
Reset Register
202
ATmega162(V/U/L)
The data registers relevant for Boundary-scan operations are:
•
•
•
•
The Bypass Register consists of a single Shift Register stage. When the Bypass Regis-
ter 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 85 shows the structure of the Device Identification Register.
Figure 85. The Format of the Device Identification Register
Version is a 4-bit number identifying the revision of the component. The relevant version
number is shown in Table 83.
Table 83. JTAG Version Numbers
The part number is a 16-bit code identifying the component. The JTAG Part Number for
ATmega162 is listed in Table 84.
Table 84. AVR JTAG Part Number
The Manufacturer ID is a 11-bit code identifying the manufacturer. The JTAG manufac-
turer ID for ATMEL is listed in Table 85.
Table 85. 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 unimple-
mented 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 settings for the clock options, the part will remain reset for a Reset Time-out
Period (refer to “Clock Sources” on page 34) after releasing the Reset Register. The
Bit
Device ID
Version
ATmega162 revision A
ATmega162 revision B
Part number
ATmega162
Manufacturer
ATMEL
Bypass Register
Device Identification Register
Reset Register
Boundary-scan Chain
MSB
31
Version
4 bits
28
27
Part Number
16 bits
JTAG Part Number (Hex)
0x9404
JTAG Man. ID (Hex)
0x01F
12
JTAG Version number (Hex)
0x0
0x1
11
Manufacturer ID
11 bits
1
2513C–AVR–09/02
LSB
0
1
1 bit