The device power-up sequence is shown in Figure 49. By default, the Mode Control Register is configured for manual mode and the default channel is channel 0. As explained previously, these devices offer Program Registers to configure user programmable features like GPIOs, Alarms, and to pre-program the channel sequence for Auto modes. At ‘power up or on reset’ these registers are set to the default values listed in Table 1 to Table 11. On power up or after reset It is required to program Mode Control Register and Program Register to required mode of operation. Once configured; the device is ready to use in any of the three channel sequencing modes namely Manual, Auto-1, and Auto-2.