SCPS311 March 2026
ADVANCE INFORMATION
The RESET input can be asserted to initialize the system while keeping the VCC supply at its operating level. A reset can be accomplished by holding the RESET pin low for a minimum of tW. The TXE8124 registers and SPI state machine are changed to their default state once RESET is set LOW. When RESET is set HIGH, the I/O levels at the P port can be changed externally or through the controller. This input requires a pull-up resistor to VCC, if no active connection is used. When RESET is toggled the input port register is updated to reflect the state of the GPIO pins.