AT32UC3B164 Atmel Corporation, AT32UC3B164 Datasheet - Page 73
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: 73 of 684
- Download datasheet (11Mb)
10.4.1
10.4.2
10.4.3
10.4.4
10.5
10.5.1
10.5.1.1
10.5.1.2
32059L–AVR32–01/2012
Functional Description
Power Management
Clocks
Interrupts
Debug Operation
RTC Operation
Source clock
Counter operation
The RTC remains operating in all sleep modes except Static mode. Interrupts are not available
in DeepStop mode.
The RTC can use the system RC oscillator as clock source. This oscillator is always enabled
whenever this module is active. Please refer to the Electrical Characteristics chapter for the
characteristic frequency of this oscillator (f
The RTC can also use the 32 KHz crystal oscillator as clock source. This oscillator must be
enabled before use. Please refer to the Power Manager chapter for details.
The clock for the RTC bus interface (CLK_RTC) is generated by the Power Manager. This clock
is enabled at reset, and can be disabled in the Power Manager. It is recommended to disable the
RTC before disabling the clock, to avoid freezing the RTC in an undefined state.
The RTC interrupt request line is connected to the interrupt controller. Using the RTC interrupt
requires the interrupt controller to be programmed first.
The RTC prescaler is frozen during debug operation, unless the OCD system keeps peripherals
running in debug operation.
The RTC is enabled by writing a one to the Enable bit in the Control Register (CTRL.EN). The
16-bit prescaler will then increment on the selected clock. The prescaler cannot be read or writ-
ten, but it can be reset by writing a one to the Prescaler Clear bit in CTRL register (CTRL.PCLR).
The 32KHz Oscillator Select bit in CTRL register (CTRL.CLK32) selects either the RC oscillator
or the 32 KHz oscillator as clock source (defined as INPUT in the formula below) for the
prescaler.
The Prescale Select field in CTRL register (CTRL.PSEL) selects the prescaler tapping, selecting
the source clock for the RTC:
When enabled, the RTC will increment until it reaches TOP, and then wraps to 0x0. The status
bit TOPI in Interrupt Status Register (ISR) is set to one when this occurs. From 0x0 the counter
will count TOP+1 cycles of the source clock before it wraps back to 0x0.
f
RTC
=
f
INPUT
RC
).
2 ⁄
(
PSEL
+
1
)
73
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