Datasheet

ADuC7033
Rev. B | Page 92 of 140
Bit Description
4 GPIO_8 Function Select Bit.
Cleared by user code to 0 to configure the GPIO_8 pin as a general-purpose I/O (GPIO) pin.
Set by user code to 1 to route the LIN/BSD input data to the GPIO_8 pin. This mode can be used to drive the LIN
transceiver interface as a standalone component without any interaction from MCU or UART.
3 to 1 Reserved. These bits are reserved and should be written as 0 by user code.
0 GPIO_7 Function Select Bit.
Cleared by user code to 0 to configure the GPIO_7 pin as a general-purpose I/O (GPIO) pin.
Set by user code to 1 to route data driven into the GPIO_7 pin through the on-chip LIN transceiver to be output at the
LIN/BSD pin. This mode can be used to drive the LIN transceiver interface as a standalone component without any
interaction from MCU or UART.