ZHCSIH0B December 2017 – July 2019 LP87702-Q1
The LP87702-Q1 device supports up to 3 general purpose output (GPO) signals. The GPO1 signal is multiplexed with PG1 signal and the GPO2 signal is multiplexed with CLKIN and WD_DIS signals. The selection between signal use are set with GPO1_SEL and GPO2_SEL bits in GPO_CONTROL_2 register.
The type of the output, either push-pull with V(VANA) level or open drain, are set with GPO0_OD and GPO1_PG1_OD bits in GPO_CONTROL_1 register and GPO2_OD bit in GPO_CONTROL_2 register
The logic level of the GPOx pins are is set by GPO0_OUT and GPO1_OUT bits in GPO_CONTROL_1 register and GPO2_OUT bit in GPO_CONTROL_2 register.
The control of the GPOs can be included to start-up and shutdown sequences. The GPO control for a sequence with ENx pin is selected by GPOx_EN_PIN_CTRL bits. The delays during start-up and shutdown are set by bits in GPOx_DELAY registers.