ATxmega128A1 Atmel Corporation, ATxmega128A1 Datasheet - Page 31

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ATxmega128A1

Manufacturer Part Number
ATxmega128A1
Description
Manufacturer
Atmel Corporation
Datasheets

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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4.16.4
8077H–AVR–12/09
FUSEBYTE4 - Non-Volatile Memory fuse Byte4 - Start-up Configuration
• Bit 6 - BOOTRST: Boot Loader Section Reset Vector
The BOOTRST fuse can be programmed so the Reset Vector is pointing to the first address in
the Boot Loader Flash Section. In this case, the device will start executing from the from Boot
Loader Flash Section after reset.
Table 4-1.
• Bit 5:2 - Reserved
These fuse bits are reserved. For compatibility with future devices, always write these bits to one
when this register is written.
• Bit 1:0 - BODPD[1:0]: BOD operation in power-down mode
The BODPD fuse bits set the BOD operation mode in all sleep modes except Idle mode.
For details on the BOD and BOD operation modes refer to
Table 4-2.
• Bit 7:5 - Reserved
These fuse bits are reserved. For compatibility with future devices, always write these bits to one
when this register is written.
• Bit: 4 - RSTDISBL - External Reset Disable
This fuse can be programmed to disable the external reset pin functionality. When this is done
pulling this pin low will not cause an external reset.
• Bit 3:2 - STARTUPTIME[1:0]: Start-up time
The STARTUPTIME fuse bits can be used to set at a programmable timeout period from all
reset sources are released and until the internal reset is released from the delay counter.
The delay is timed from the 1kHz output of the ULP oscillator, refer to
Sequence” on page 104
Bit
+0x04
Read/Write
Initial Value
BODPD[1:0]
BOOTRST
0
1
00
01
10
11
R/W
Boot Reset Fuse
BOD operation modes in sleep modes
7
1
Reset Address
Reset Vector = Boot Loader Reset
Reset Vector = Application Reset (address 0x0000)
Description
Reserved
BOD enabled in sampled mode
BOD enabled continuously
BOD Disabled
R/W
6
1
for details.
R/W
5
1
RSTDISBL
R/W
4
1
STARTUPTIME[1:0]
R/W
3
1
R/W
2
1
”Brown-Out Detection” on page
WDLOCK
R/W
1
1
Section 9.3 ”Reset
JTAGEN
XMEGA A
R/W
0
0
FUSEBYTE4
106.
31

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