ATxmega128A1 Atmel Corporation, ATxmega128A1 Datasheet - Page 35
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ATxmega128A1
Manufacturer Part Number
ATxmega128A1
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega128A1
Flash (kbytes)
128 Kbytes
Pin Count
100
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
78
Ext Interrupts
78
Usb Speed
No
Usb Interface
No
Spi
12
Twi (i2c)
4
Uart
8
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
Yes
Crypto Engine
AES/DES
Sram (kbytes)
8
Eeprom (bytes)
2048
Self Program Memory
YES
External Bus Interface
1
Dram Memory
sdram
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.6 to 3.6
Operating Voltage (vcc)
1.6 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
8
Output Compare Channels
24
Input Capture Channels
24
Pwm Channels
24
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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8077H–AVR–12/09
• Bit 3:2 - BLBAT[1:0]: Boot Lock Bit Application Table Section
These bits indicate the locking mode for the Application Table Section. Even though the BLBAT
bits are writable, they can only be written to a stricter locking. Resetting the BLBAT bits is only
possible by executing a Chip Erase Command.
Table 4-10.
• Bit 1:0 - LB[1:0]: Lock Bits
These bits indicate the locking mode for the Flash and EEPROM in Programming Mode. These
bits are writable only through an external programming interface. Resetting the Lock Bits is only
possible by executing a Chip Erase Command.
Table 4-11.
BLBAT[1:0]
LB[1:0]
11
10
01
00
11
10
00
Boot Lock Bit for the Application Table Section
Boot Lock Bit for The Boot Section
Group Configuration
Group Configuration
NOLOCK3
RWLOCK
RWLOCK
NOLOCK
WLOCK
WLOCK
RLOCK
Description
No Lock, no restrictions for SPM and (E)LPM accessing
the Application Table Section.
Write Lock, SPM is not allowed to write the Application
Table
Read Lock, (E)LPM executing from the Boot Loader
Section is not allowed to read from the Application Table
Section.
If the interrupt vectors are placed in the Boot Loader
Section, interrupts are disabled while executing from the
Application Section.
Read and Write Lock, SPM is not allowed to write to the
Application Table Section and (E)LPM executing from
the Boot Loader Section is not allowed to read from the
Application Table Section.
If the interrupt vectors are placed in the Boot Loader
Section, interrupts are disabled while executing from the
Application Section.
Description
No Lock, no memory locks enabled.
Write lock, programming of the Flash and EEPROM is
disabled for the programming interface. Fuse bits are
locked for write from the programming interface.
Read and Write Lock, programming and
read/verification of the flash and EEPROM is disabled
for the programming interface. The lock bits and fuses
are locked for read and write from the programming
interface.
XMEGA A
35
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