AT32UC3C164C Atmel Corporation, AT32UC3C164C Datasheet - Page 767
AT32UC3C164C
Manufacturer Part Number
AT32UC3C164C
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3C0128C.pdf
(1313 pages)
4.AT32UC3C0128C.pdf
(108 pages)
Specifications of AT32UC3C164C
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
81
Ext Interrupts
100
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
7
Twi (i2c)
3
Uart
5
Can
2
Lin
5
Ssc
1
Ethernet
1
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
No
Crypto Engine
No
Sram (kbytes)
20
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 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
22
Input Capture Channels
12
Pwm Channels
19
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3C164C-AUR
Manufacturer:
ATMEL
Quantity:
1 240
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29.6.2.5
29.6.3
29.6.3.1
32117C–AVR-08/11
Message Handling
Wake-up mode
Message object structure
According to the CAN specification, a channel can be in error active, error passive or bus off
state. The bus state can be read in the CANFC.EMODE field:
Table 29-3.
This state depends on both transmit and receive counters value (TEC/REC), also available in
the CANFC register (see CAN specification for more details).
In this mode the CAN channel is a wake-up source for the CPU. Detection of a falling edge on
the CAN bus is interpreted as the start of frame (SOF) bit of the wake-up frame and will wake the
CPU.
In order to use this mode, execute the following steps:
Note 1: when channel is disabled PB registers are not cleared, user can resume current applica-
tion by enabling channel again.
Note 2: wake-up frame cannot be received. Moreover next frames cannot be received until CPU
is woken-up. Wake-up time depends on sleep modes (see sleep modes section).
Message Objects (MOb) are message descriptors, used to store and handle CAN frames. User
configures and gets status of MObs via user interface registers and writing and reading frames
into allocated RAM space
MObs are independent and are allocated to one channel.
EMODE
2 or 3
– Disable CAN channel by writing CANCTRL.CEN to zero
– Wait for channel disabled (CANSR.CES is cleared)
– Enable wake-up mode by writing CANCTRL.WKEN to one
– Optionally mask wake-up interrupt source by writing CANIMR.WKUPIM
– Enter sleep mode, stopping PB and CAN clocks
– Sleep
– Wake-up frame is detected, CANISR.WKUP is set and CPU is woken-up
– Clear CANISR.WKUP by writing it to zero
– Disable wake-up mode and enable CAN channel
0
1
Bus State Coding
error passive state
error active state
bus off state
State
(Section
29.6.1.5).
AT32UC3C
767
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