AT32UC3B164 Atmel Corporation, AT32UC3B164 Datasheet - Page 313
AT32UC3B164
Manufacturer Part Number
AT32UC3B164
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 AT32UC3B164
Flash (kbytes)
64 Kbytes
Pin Count
48
Max. Operating Frequency
60 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
28
Ext Interrupts
28
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
3
Twi (i2c)
1
Uart
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
6
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3B164-Z1UT
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- AT32UC3B0128 PDF datasheet #4
- AT32UC3B0128 PDF datasheet #5
- Current page: 313 of 684
- Download datasheet (11Mb)
21.6.4.9
21.6.4.10
Figure 21-22. Timeguard Operation
32059L–AVR32–01/2012
Baud Rate
TXEMPTY
TXRDY
Clock
Write
THR
TXD
Multidrop Mode
Transmitter Timeguard
Start
Bit
D0
D1
If PAR is either 0x6 or 0x7, the USART runs in Multidrop mode. This mode differentiates data
and address characters. Data has the parity bit zero and addresses have a one. By writing a one
to the Send Address bit (CR.SENDA) the user will cause the next character written to THR to be
transmitted as an address. Receiving a character with a one as parity bit will set CSR.PARE.
The timeguard feature enables the USART to interface slow devices by inserting an idle state on
the TXD line in between two characters. This idle state corresponds to a long stop bit, whose
duration is selected by the Timeguard Value field in the Transmitter Timeguard Register
(TTGR.TG). The transmitter will hold the TXD line high for TG bit periods, in addition to the num-
ber of stop bits. As illustrated in
when TG has a non-zero value. If a pending character has been written to THR, the TXRDY bit
will not be set until this characters start bit has been sent. TXEMPTY will remain low until the
timeguard transmission has completed.
Table 21-8.
D2
D3
Baud Rate (bit/sec)
D4
D5
115200
14400
19200
28800
33400
56000
57600
1 200
9 600
D6
Maximum Baud Rate Dependent Timeguard Durations
D7
Parity
Bit
Stop
Bit
TG = 4
Figure
21-22, the behavior of TXRDY and TXEMPTY is modified
Start
Bit
Bit time (µs)
D0
69.4
52.1
34.7
29.9
17.9
17.4
D1
833
104
8.7
D2
D3
D4
D5
D6
D7
Parity
Bit
Stop
Timeguard (ms)
Bit
212.50
26.56
17.71
13.28
8.85
7.63
4.55
4.43
2.21
TG = 4
313
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