ATxmega32D4 Atmel Corporation, ATxmega32D4 Datasheet - Page 31
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ATxmega32D4
Manufacturer Part Number
ATxmega32D4
Description
Manufacturer
Atmel Corporation
Specifications of ATxmega32D4
Flash (kbytes)
32 Kbytes
Pin Count
44
Max. Operating Frequency
32 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Speed
No
Usb Interface
No
Spi
4
Twi (i2c)
2
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
12
Adc Resolution (bits)
12
Adc Speed (ksps)
200
Analog Comparators
2
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
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
4
Output Compare Channels
14
Input Capture Channels
14
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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4.13.5
8210B–AVR–04/10
LOCKBITS - Non-Volatile Memory Lock Bit Register
Changing of the EESAVE fuse bit takes effect immediately after the write time-out elapses.
Hence, it is possible to update EESAVE and perform a chip erase according to the new setting
of EESAVE without leaving and re-entering programming mode
• Bit 2:0 - BODLEVEL[2:0] - Brown out detection voltage level
The BODLEVEL fuse bits sets the nominal BOD level value. During power-on the device is kept
in reset until the V
that the BOD level is set lower than the V
normal operation, refer to
Table 4-7.
Changing these fuse bits will have no effect until leaving programming mode.
• Bit 7:6 - BLBB[1:0]: Boot Lock Bit Boot Loader Section
These bits indicate the locking mode for the Boot Loader Section. Even though the BLBB bits
are writable, they can only be written to a stricter locking. Resetting the BLBB bits is only possi-
ble by executing a Chip Erase Command.
Bit
+0x07
Read/Write
Initial Value
BODLEVEL
111
110
101
100
011
010
001
000
BOD level nominal values, for actual values refer to the device datasheet.
R/W
7
1
CC
BLBB[1:0]
level has reached the programmed BOD level. Due to this always ensure
R/W
Section 9.4 ”Reset Sources” on page 104
6
1
R/W
5
1
BLBA[1:0]
CC
Normal BOD level value (V)
R/W
level, also if the BOD is not enabled and used during
4
1
R/W
3
1
BLBAT[1:0]
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
R/W
2
1
for details.
R/W
1
1
LB[1:0]
XMEGA D
R/W
0
1
LOCKBITS
31