ATMEGA162-16AC Atmel, ATMEGA162-16AC Datasheet - Page 202
ATMEGA162-16AC
Manufacturer Part Number
ATMEGA162-16AC
Description
IC MCU AVR 16K 5V 16MHZ 44-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA162-16AC
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
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)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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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
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