ATMEGA169V-8MI Atmel, ATMEGA169V-8MI Datasheet - Page 235
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ATMEGA169V-8MI
Manufacturer Part Number
ATMEGA169V-8MI
Description
IC MCU AVR 16K 1.8V 1MHZ 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169V-8MI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA169V-1MI
ATMEGA169V-1MI
ATMEGA169V-1MI
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SAMPLE_PRELOAD; 0x2
AVR_RESET; 0xC
BYPASS; 0xF
Boundary-scan Related
Register in I/O Memory
MCU Control Register –
MCUCR
2514P–AVR–07/06
Mandatory JTAG instruction for pre-loading the output latches and taking a snap-shot of
the input/output pins without affecting the system operation. However, the output latches
are not connected to the pins. The Boundary-scan Chain is selected as Data Register.
The active states are:
•
•
•
The AVR specific public JTAG instruction for forcing the AVR device into the Reset
mode or releasing the JTAG reset source. The TAP controller is not reset by this instruc-
tion. The one bit Reset Register is selected as Data Register. Note that the reset will be
active as long as there is a logic “one” in the Reset Chain. The output from this chain is
not latched.
The active states are:
•
Mandatory JTAG instruction selecting the Bypass Register for Data Register.
The active states are:
•
•
The MCU Control Register contains control bits for general MCU functions.
• Bit 7 – JTD: JTAG Interface Disable
When this bit is zero, the JTAG interface is enabled if the JTAGEN Fuse is programmed.
If this bit is one, the JTAG interface is disabled. In order to avoid unintentional disabling
or enabling of the JTAG interface, a timed sequence must be followed when changing
this bit: The application software must write this bit to the desired value twice within four
cycles to change its value. Note that this bit must not be altered when using the On-chip
Debug system.
If the JTAG interface is left unconnected to other JTAG circuitry, the JTD bit should be
set to one. The reason for this is to avoid static current at the TDO pin in the JTAG
interface.
Bit
Read/Write
Initial Value
Capture-DR: Data on the external pins are sampled into the Boundary-scan Chain.
Shift-DR: The Boundary-scan Chain is shifted by the TCK input.
Update-DR: Data from the Boundary-scan chain is applied to the output latches.
However, the output latches are not connected to the pins.
Shift-DR: The Reset Register is shifted by the TCK input.
Capture-DR: Loads a logic “0” into the Bypass Register.
Shift-DR: The Bypass Register cell between TDI and TDO is shifted.
R/W
JTD
7
0
R
6
–
0
R
5
–
0
PUD
R/W
4
0
R
3
–
0
R
2
–
0
ATmega169/V
IVSEL
R/W
1
0
IVCE
R/W
0
0
MCUCR
235
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