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SHIP mode is the basic and lowest power mode that BQ769x0 supports. SHIP mode is automatically entered during initial pack assembly and after every POR event. When the device is in NORMAL mode, it may enter SHIP by the host controller through a specific sequence of I2C commands. In SHIP mode, only a minimum of blocks is turned on, including the VSTUP power supply and primal boot detector. Waking from SHIP mode to NORMAL mode requires pulling the TS1 pin greater than VBOOT, which triggers the device boot-up sequence. To enter SHIP mode from NORMAL mode, the [SHUT_A] and [SHUT_B] bits in the SYS_CTRL1 register must be written with specific patterns across two consecutive writes: • Write #1: [SHUT_A] = 0, [SHUT_B] = 1 • Write #2: [SHUT_A] = 1, [SHUT_B] = 0 Note that [SHUT_A] and [SHUT_B] should each be in a 0 state prior to executing the shutdown command above. If this specific sequence is entered into the device, the device transitions into SHIP mode. If any other sequence is written to the [SHUT_A] and [SHUT_B] bits or if either of the two patterns is not correctly entered, the device will not enter SHIP mode
