AT32UC3B1256-AUR Atmel, AT32UC3B1256-AUR Datasheet - Page 486

• Manufacturer Part Number: AT32UC3B1256-AUR
• Description: MCU AVR32 256K FLASH 48-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1256-AUR

• Package / Case: 48-TQFP, 48-VQFP
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 28
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Program Memory Size: 256KB (256K x 8)
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Core Size: 32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

23.5.2
23.5.3
23.5.4
23.5.5
23.6
23.6.1
23.6.1.1
23.6.1.2
32059J–12/2010
Functional Description
Power Management
Clocks
Interrupts
Debug Operation
TC Description
Channel I/O Signals
16-bit counter
If the CPU enters a sleep mode that disables clocks used by the TC, the TC will stop functioning
and resume operation after the system wakes up from sleep mode.
The clock for the TC bus interface (CLK_TC) 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
TC before disabling the clock, to avoid freezing the TC in an undefined state.
The TC interrupt request line is connected to the interrupt controller. Using the TC interrupt
requires the interrupt controller to be programmed first.
The Timer Counter clocks are frozen during debug operation, unless the OCD system keeps
peripherals running in debug operation.
The three channels of the Timer Counter are independent and identical in operation. The regis-
ters for channel programming are listed in
As described in
Table 23-2.
Each channel is organized around a 16-bit counter. The value of the counter is incremented at
each positive edge of the selected clock. When the counter has reached the value 0xFFFF and
passes to 0x0000, an overflow occurs and the Counter Overflow Status bit in the Channel n Sta-
tus Register (SRn.COVFS) is set.
The current value of the counter is accessible in real time by reading the Channel n Counter
Value Register (CVn). The counter can be reset by a trigger. In this case, the counter value
passes to 0x0000 on the next valid edge of the selected clock.
Block/Channel
Channel Signal
Channel I/O Signals Description
Figure 23-1 on page
XC0, XC1, XC2
Signal Name
SYNC
TIOA
TIOB
INT
485, each Channel has the following I/O signals.
Figure 23-3 on page
Description
External Clock Inputs
Capture mode: Timer Counter Input
Waveform mode: Timer Counter Output
Capture mode: Timer Counter Input
Waveform mode: Timer Counter Input/Output
Interrupt Signal Output
Synchronization Input Signal
501.
AT32UC3B
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