翻译Low-power mode (LPM) is used to reduce system quiescent currents. Low-power mode may be entered only by sending the Low-power command. When returning to Normal mode, all register settings is maintained. The Enter Low-power mode register is write only and has the effect of going to LPM and beginning operation as selected (polling, interrupt timer). When returning form Low-power mode, the first SPI transaction will return the Fault Status and the intflg bit set to high, as well as the actual status of the Input pins.

低功耗模式（LPM）用于降低系统静态电流。只能通过发送低功耗命令进入低功耗模式。返回到正常模式时，所有寄存器设置将被保留。
进入低功耗模式寄存器只能写入，并且具有进入所选的LPM和开始操作（轮询、中断计时器）的效果。从低功耗模式返回时，第一个SPI事务将返回故障状态和intflg位设置为高，以及输入引脚的实际状态。

相关问题

请翻译In normal mode, the chip operates as selected in the available registers. Any command may be loaded in normal mode, although not all (Low-power mode) registers are used in the Normal mode. All the LPM registers must be programmed in Normal mode as the SPI is not active in LPM. The Normal mode of the chip is used to operate the AMUX, communicate via the SPI, Interrupt the IC, wetting and sustain currents, as well as the thresholds available to use. The WAKE_B pin is asserted (low) in Normal mode and can be used to enable a power supply (ENABLE_B). Various fault detections are available in this mode including overvoltage, overtemperature, thermal warning, SPI errors, and Hash faults.

在正常模式下，芯片按照可用寄存器中选择的方式运行。在正常模式下可以加载任何命令，尽管并非所有的低功耗模式寄存器都在正常模式下使用。在低功耗模式下，所有的LPM寄存器必须在正常模式下进行编程，因为SPI在LPM中不活动。芯片的正常模式用于操作AMUX、通过SPI进行通信、中断IC、湿润和维持电流，以及可用的阈值。在正常模式下，WAKE_B引脚被设为低电平，并可用于启用电源（ENABLE_B）。该模式下提供了各种故障检测功能，包括过压、过温、热警告、SPI错误和哈希故障。

翻译The tri-state command is use to set the input nodes as high-impedance (Table 16). By setting the tri-state register bit to logic [1], the input is high-impedance regardless of the Wetting current setting. The configurable comparator (4.0 V default) on each input remains active. The MCU may change or update the tri-state register via software at any time in Normal mode. The tri-state register defaults to 1 (inputs are tri-stated). Any inputs in tri-state is still polled in LPM but the current source is not active during this time. The determination of change of state occurs at the end of the tACTIVEPOLL and the wake-up decision is made.

三态命令用于将输入节点设置为高阻抗（表16）。通过将三态寄存器位设置为逻辑[1]，无论润湿电流设置如何，输入都是高阻抗的。每个输入上的可配置比较器（默认为4.0V）仍然处于活动状态。
MCU可以在正常模式下随时通过软件更改或更新三态寄存器。三态寄存器默认为1（输入处于三态）。在LPM中仍然轮询任何处于三态的输入，但在此期间电流源不活动。状态更改的确定发生在tACTIVEPOLL结束时，并做出唤醒决定。