Datasheet

13
32059L–AVR32–01/2012
AT32UC3B
5.1 JTAG pins
TMS and TDI pins have pull-up resistors. TDO pin is an output, driven at up to VDDIO, and has
no pull-up resistor. These 3 pins can be used as GPIO-pins. At reset state, these pins are in
GPIO mode.
TCK pin cannot be used as GPIO pin. JTAG interface is enabled when TCK pin is tied low.
DCD Data Carrier Detect Only USART1
DSR Data Set Ready Only USART1
DTR Data Terminal Ready Only USART1
RI Ring Indicator Only USART1
RTS Request To Send Output
RXD Receive Data Input
TXD Transmit Data Output
Analog to Digital Converter - ADC
AD0 - AD7 Analog input pins
Analog
input
ADVREF Analog positive reference voltage input
Analog
input
2.6 to 3.6V
Audio Bitstream DAC - ABDAC
DATA0 - DATA1 D/A Data out Output
DATAN0 - DATAN1 D/A Data inverted out Output
Pulse Width Modulator - PWM
PWM0 - PWM6 PWM Output Pins Output
Universal Serial Bus Device - USBB
DDM USB Device Port Data - Analog
DDP USB Device Port Data + Analog
VBUS
USB VBUS Monitor and Embedded Host
Negociation
Analog
Input
USBID ID Pin of the USB Bus Input
USB_VBOF USB VBUS On/off: bus power control port output
Table 5-1. Signal Description List (Continued)
Signal Name Function Type
Active
Level Comments