AT32UC3L0128 Atmel Corporation, AT32UC3L0128 Datasheet - Page 394
AT32UC3L0128
Manufacturer Part Number
AT32UC3L0128
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3L0128.pdf
(85 pages)
4.AT32UC3L0128.pdf
(852 pages)
Specifications of AT32UC3L0128
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
50 MHz
Cpu
32-bit AVR
# Of Touch Channels
17
Hardware Qtouch Acquisition
Yes
Max I/o Pins
36
Ext Interrupts
36
Usb Speed
No
Usb Interface
No
Spi
5
Twi (i2c)
2
Uart
4
Lin
4
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
460
Analog Comparators
8
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.62 to 3.6
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
35
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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19.6.5.8
32145A–12/2011
Identifier Parity
The following formula is used to calculate synchronization deviation, where F
slave node clock frequency, and F
ing to the LIN specification, F
nodes must be within ±2% of each other, resulting in a maximal BaudRate_deviation of ±1%.
Minimum nominal clock frequency with a fractional part:
Examples:
If the fractional part is not used, the synchronization accuracy is much lower. The 16 most signif-
icant bits, added with the first least significant bit, becomes the new clock divider (CD). The
equation of the baud rate deviation is the same as above, but the constants are:
Minimum nominal clock frequency without a fractional part:
Examples:
An identifier field consists of two sub-fields; the identifier and its parity. Bits 0 to 5 are assigned
to the identifier, while bits 6 and 7 are assigned to parity. Automatic parity management is dis-
abled by writing a one to the Parity Disable bit in the LIN Mode register (LINMR.PARDIS).
• The oversampling mode (OVER=0 => 16x, or OVER=1 => 8x)
• Baud rate = 20 kbit/s, OVER=0 (Oversampling 16x) => F
• Baud rate = 20 kbit/s, OVER=1 (Oversampling 8x) => F
• Baud rate = 1 kbit/s, OVER=0 (Oversampling 16x) => F
• Baud rate = 1 kbit/s, OVER=1 (Oversampling 8x) => F
• Baud rate = 20 kbit/s, OVER=0 (Oversampling 16x) => F
• Baud rate = 20 kbit/s, OVER=1 (Oversampling 8x) => F
• Baud rate = 1 kbit/s, OVER=0 (Oversampling 16x) => F
• Baud rate = 1 kbit/s, OVER=1 (Oversampling 8x) => F
BaudRate_deviation
BaudRate_deviation
F
F
Nom
Nom
min
min
=
=
⎛
⎜
⎜
⎜
⎝
100
⎛
⎜
⎜
⎜
⎝
TOL_UNSYNCH
100
–
–
4
0,5
---------------------------------------------------------------------------------------------- -
TOL_UNSYNC
4 8
=
=
------------------------------------------------------------------------------------------------------ -
0,5
⎛
⎝
⎛
⎜
⎜
⎜
⎝
+4
100
100
+0,5
8
may not exceed ±15%, and the bit rates between two
2 OVER
8
–
-1
⎛
⎝
is the difference between F
-------------------------------------------------------------------------------------------------- -
-------------------------------------------------------------------------------------------------- -
–
--------- -
100
8
15
2 OVER
-1
–
⎛
⎝
+
8
8
–
--------- -
100
+1
8
1
15
+
⎞
⎠
1
⎛
⎝
2 OVER
2 OVER
+
1%
F
----------------------------------- -
+1
–
–
1
Nom
Nom
TOL_UNSYNC
Baudrate
⎞
⎠
AT32UC3L0128/256
+
Nom
Nom
Nom
Nom
8
Nom
Nom
1
(min) = 74 kHz
(min) = 485 kHz
100
1%
(min) = 1.47 MHz
(min) = 132 kHz
(min) = 9.71 MHz
(min) = 956 kHz
F
(min) = 2.64 MHz
(min) = 19.12 MHz
SLAVE
BaudRate
⎞
⎟
⎟
⎟
⎠
+
+
Hz
⎞ xF
⎠
Nom
BaudRate
BaudRate
Nom
⎞
⎟
⎟
⎟
⎠
Hz
and F
SLAVE
SLAVE
⎞ %
⎠
⎞
⎟
⎟
⎟
⎠
%
is the real
Accord-
394
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