SBAS883A February 2018 – June 2018 OPT3101
PRODUCTION DATA.
There are two general purpose I/Os which can be used to bring out various digital signals like DATA_RDY, FRAME_VD, ILLUM CLK, ILLUM_EN. GP2 can also be used as an input pin for external clock reference for device on-chip oscillator frequency calibration.
REGISTER | ADDRESS | DESCRIPTION |
---|---|---|
GPO1_MUX_SEL | 78h[8:6] | Select signal for the GP1 output multiplexer.
0: DVSS | 2: DIG_GPO_0 | 3: DIG_GPO_1 | 7: ILLUM_CLK | Other values: Not valid |
GPIO1_OBUF_EN | 78h[12] | Enable output buffer of GP1 pin |
GPIO2_IBUF_EN | 78h[16] | Enable input buffer of GP2 pin. External reference clock should be connected to this pin for frequency calibration. |
GPIO2_OBUF_EN | 78h[15] | Enable output buffer of GP2 pin |
GPO2_MUX_SEL | 78h[11:9] | Select signal for the GP2 output multiplexer.
0: DVSS | 2: DIG_GPO_0 | 3: DIG_GPO_1 | 7: ILLUM_EN_TX0 | Other values: Not valid |
DIG_GPO_SEL0 | 0Bh[3:0] | Mux selection bits for digital signal DIG_GPO_0, which can be brought out on GP1 or GP2
0: FRAME_VD | 1: SUB_VD | 4: SEQUENCER_INTERRUPT 8: COMP_STATUS | 9: DATA_RDY | 10: FRAME_COUNTER_LSB | Other values: Not valid |
DIG_GPO_SEL1 | 0Bh[7:4] | Mux selection bits for digital signal DIG_GPO_1 which can be brought out on GP1 or GP2
0: FRAME_VD | 1: SUB-VD | 4: SEQUENCER_INTERRUPT 8: COMP_STATUS | 9: DATA_RDY | 10: FRAME_COUNTER_LSB | Other values: Not valid |