AT32UC3B064 Atmel Corporation, AT32UC3B064 Datasheet - Page 303
AT32UC3B064
Manufacturer Part Number
AT32UC3B064
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3B0128.pdf
(684 pages)
5.AT32UC3B0128.pdf
(107 pages)
Specifications of AT32UC3B064
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
44
Ext Interrupts
44
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
4
Twi (i2c)
1
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Table 21-4.
Table 21-5.
Table 21-6.
32059L–AVR32–01/2012
DI field
Di (decimal)
FI field
Fi (decimal
Di=16
Di=32
Di=12
Di=20
Di=2
Di=4
Di=8
Fi
23.25
11.62
46.5
18.6
Binary and Decimal Values for Di
Binary and Decimal Values for Fi
Possible Values for the Fi/Di Ratio
372
186
0000
93
31
372
0001
1
0001
139.5
69.75
34.87
17.43
372
46.5
27.9
558
279
Di is a binary value encoded on a 4-bit field, named DI, as represented in
Fi is a binary value encoded on a 4-bit field, named FI, as represented in
Table 21-6
baud rate clock.
If the USART is configured to run in ISO7816 mode, the clock selected by the MR.USCLKS field
is first divided by the CD value before it can be output on the CLK pin, to feed the smart card
clock inputs, by writing a one to the Clock Output Select bit (MR.CLK0). It is then divided by the
FI Over DI Ratio Value field in the FI DI Ratio Register (FIDI.FI_DI_RATIO), which can be up to
2047 in ISO7816 mode. This will be rounded off to an integral so the user has to select a
FI_DI_RATIO value that comes as close as possible to the expected Fi/Di ratio. The
FI_DI_RATIO reset value is 0x174 (372 in decimal) and is the most common divider between the
ISO7816 clock and bit rate (Fi=372, Di=1).
mentary Time Unit (ETU), corresponding to a bit period, and the ISO 7816 clock.
Figure 21-4. Elementary Time Unit (ETU)
ISO7816 I/O Line
0010
0010
558
ISO7816 Clock
2
23.25
46.5
37.2
744
372
186
93
62
shows the resulting Fi/Di ratio, which is the ratio between the ISO7816 clock and the
on TXD
on CLK
0011
744
139.5
69.75
34.87
1116
55.8
558
279
93
0011
4
0100
1116
1488
46.5
74.4
744
372
186
124
93
0100
0101
1488
8
232.5
116.2
58.13
1860
930
465
155
93
Figure 21-4
0110
1860
0101
16
ISO7816 Clock Cycles
42.66
25.6
512
256
128
64
32
16
FI_DI_RATIO
1001
512
1 ETU
shows the relationship between the Ele-
38.4
0110
768
384
192
96
48
24
64
32
1010
768
85.33
1024
51.2
512
256
128
64
32
1024
1011
1000
Table
12
Table
1536
76.8
21-5.
768
384
192
128
21-4.
1536
1100
96
48
1001
20
170.6
102.4
2048
2048
1024
1101
512
256
128
64
303
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