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USB Module Signals and PA[6:0]
19.9.4 Request to Send (URT0_RTS/PB3)
UART0 mode: Asserting URT0_RTS output is an automatic request to send output from the
UART0 module. URT0_RTS can also be configured to be asserted and negated as a
function of the RxFIFO level.
Port B mode: This pin can also be configured as the PB3 I/O.
19.9.5 Clock (URT0_CLK/PB4)
UART0 mode: URT0_CLK provides a clock input that can be a 1x or 16x baud rate clock.
Port B mode: This pin can also be configured as the PB4 I/O.
19.10 USB Module Signals and PA[6:0]
The USB module uses the signals in this section for data and clock signals. These signals
are multiplexed with the GPIO port A signals PA[6:0].
19.10.1 USB Transmit Serial Data Output (USB_TP/PA0)
USB mode: USB_TP is the non-inverted data transmit output.
Port A mode: This pin can also be configured as the PA0 I/O.
19.10.2 USB Receive Serial Data Input (USB_RP/PA1)
USB mode: USB_RP is the non-inverted receive data input.
Port A mode: This pin can also be configured as the PA1 I/O.
19.10.3 USB Receive Data Negative (USB_RN/PA2)
USB mode: USB_RN is the inverted receive data input.
Port A mode: This pin can also be configured as the PA2 I/O.
19.10.4 USB Transmit Data Negative (USB_TN/PA3)
USB mode: USB_TN is the inverted data transmit output.
Port A mode: This pin can also be configured as the PA3 I/O.
19.10.5 USB Suspend Driver (USB_SUSP/PA4)
USB mode: USB_SUSP is used to put the USB driver in suspend operation.
Port A mode: This pin can also be configured as the PA4 I/O.
Chapter 19. Signal Descriptions
19-23
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