AT32UC3C164C Atmel Corporation, AT32UC3C164C Datasheet - Page 594
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
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3C0128C PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
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- Download datasheet (20Mb)
25.6.6
32117C–AVR-08/11
RS485 Mode
The USART features the RS485 mode to enable line driver control. While operating in RS485
mode, the USART behaves as though in asynchronous or synchronous mode and configuration
of all the parameters is possible. The difference is that the RTS pin is driven high when the
transmitter is operating. The behavior of the RTS pin is controlled by the TXEMPTY bit. A typical
connection of the USART to a RS485 bus is shown in
Figure 25-35. Typical Connection to a RS485 Bus
The USART is set in RS485 mode by programming the MODE field in the Mode Register (MR)
to the value 0x1.
The RTS pin is at a level inverse to the TXEMPTY bit. Significantly, the RTS pin remains high
when a timeguard is programmed so that the line can remain driven after the last character com-
pletion.
when the timeguard is enabled.
Figure 25-36. Example of RTS Drive with Timeguard
Figure 25-36
Baud Rate
TXEMPTY
TXRDY
Clock
Write
THR
TXD
RTS
gives an example of the RTS waveform during a character transmission
USART
Start
Bit
RXD
TXD
RTS
D0
D1
D2
D3
D4
D5
D6
Figure
D7
Parity
Bit
25-35.
Stop
Bit
Differential
Bus
TG = 4
AT32UC3C
594
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