AT32UC3B0512-Z2UR Atmel, AT32UC3B0512-Z2UR Datasheet - Page 174

• Manufacturer Part Number: AT32UC3B0512-Z2UR
• Description: IC MCU AVR32 512K FLASH 64QFN
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B0512-Z2UR

• Package / Case: 64-QFN
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 60MHz
• Number Of I /o: 44
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 96K x 8
• Program Memory Size: 512KB (512K x 8)
• Data Converters: A/D 8x10b
• 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: -

17.5.1
17.5.1.1
17.5.1.2
17.5.1.3
32059J–12/2010
Basic Operation
I/O Line or peripheral function selection
Peripheral selection
Output control
Figure 17-2. Overview of the GPIO Pad Connections
When a pin is multiplexed with one or more peripheral functions, the selection is controlled with
the GPIO Enable Register (GPER). If a bit in GPER is written to one, the corresponding pin is
controlled by the GPIO. If a bit is written to zero, the corresponding pin is controlled by a periph-
eral function.
The GPIO provides multiplexing of up to four peripheral functions on a single pin. The selection
is performed by accessing Peripheral Mux Register 0 (PMR0) and Peripheral Mux Register 1
(PMR1).
When the I/O line is assigned to a peripheral function, i.e. the corresponding bit in GPER is writ-
ten to zero, the drive of the I/O line is controlled by the peripheral. The peripheral, depending on
the value in PMR0 and PMR1, determines whether the pin is driven or not.
When the I/O line is controlled by the GPIO, the value of the Output Driver Enable Register
(ODER) determines if the pin is driven or not. When a bit in this register is written to one, the cor-
Periph. C output enable
Periph. D output enable
Periph. A output enable
Periph. B output enable
Periph. A output data
Periph. B output data
Periph. C output data
Periph. D output data
Periph. A input data
Periph. B input data
Periph. C input data
Periph. D input data
PMR1
PMR0
ODER
OVR
GPER
Glitch Filter
PVR
GFER
1
0
0
1
0
1
Edge Detector
IMR1
IMR0
IER
1
0
PUER
AT32UC3B
Interrupt Request
PAD
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