AT32UC3C164C-AUR Atmel, AT32UC3C164C-AUR Datasheet - Page 99

• Manufacturer Part Number: AT32UC3C164C-AUR
• Description: IC MCU AVR32 64K FLASH 100TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3C164C-AUR

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: CAN, Ethernet, I²C, IrDA, LIN, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 81
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x12b, D/A 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFQFP
• Processor Series: AT32UC3x
• Core: AVR32
• Data Bus Width: 32 bit
• 3rd Party Development Tools: EWAVR32, EWAVR32-BL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

10.1.8
10.1.9
32117BS–AVR-03/11
TWIS
USBC
1
1
Clearing the NAK bit before the BTF bit is set locks up the TWI bus
When the TWIS is in transmit mode, clearing the NAK Received (NAK) bit of the Status Reg-
ister (SR) before the end of the Acknowledge/Not Acknowledge cycle will cause the TWIS to
attempt to continue transmitting data, thus locking up the bus.
Fix/Workaround
Clear SR.NAK only after the Byte Transfer Finished (BTF) bit of the same register has been
set.
UPINRQx.INRQ field is limited to 8-bits
In Host mode, when using the UPINRQx.INRQ feature together with the multi-packet mode
to launch a finite number of packet among multi-packet, the multi-packet size (located in the
descriptor table) is limited to the UPINRQx.INRQ value multiply by the pipe size.
Fix/Workaround
UPINRQx.INRQ value shall be less than the number of configured multi-packet.
AT32UC3C
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