翻译Device configuration register The device has various configuration settings that are global in nature. The configuration settings are as follows: • When the 33978 is in the overvoltage region, a Logic [0] on the VBATP OV bit limits the wetting current on all input channels to 2 mA and the 33978 will not be able to enter into the Low-power mode. A Logic [1] allows the device to operate normally even in the overvoltage region. The OV flag will be set when the device enters in the OV region, regardless the value of the VBATP OV bit. • WAKE_B can be used to enable an external power supply regulator to supply the VDDQ voltage rail. When the WAKE_B VDDQ check bit is a Logic [0], the WAKE_B pin is expected to be pulled-up internally or externally to VDDQ and VDDQ is expected to go low, therefore the 33978 does not wake-up on the falling edge of WAKE_B. A Logic [1], assumes the user is using an external pull-up to VBATP or VDDQ (when VDDQ is not expected to be off) and the IC wakes up on a falling edge of WAKE_B. • INT_B out is used to select how the INT_B pin operates when an interrupt occurs. The IC is able to pulse low [1] or latch low [0]. • Aconfig[1-0] is used to determine the method of selecting the AMUX output, either a SPI command or using a hardwired setup using SG[3-1]. • Inputs SP0-7 may be programmable for switch-to-battery or switch-to-ground. These inputs types are defined using the settings command. To set a SPn input for switch-to-battery, a logic [1] for the appropriate bit must be set. To set a SPn input for switch-toground, a logic [0] for the appropriate bit must be set. The MCU may change or update the programmable switch register via software at any time in Normal mode. Regardless of the setting, when the SPn input switch is closed a logic [1] is placed in the serial output response register.

设备配置寄存器
该设备具有多种全局性质的配置设置。配置设置如下：
• 当33978处于过压区域时，VBATP OV位为逻辑[0]将所有输入通道的润湿电流限制为2 mA，并且33978无法进入低功耗模式。逻辑[1]允许设备即使在过压区域正常运行。当设备进入过压区域时，OV标志将被设置，而不管VBATP OV位的值如何。
• WAKE_B可用于启用外部电源调节器来供应VDDQ电压轨。当WAKE_B VDDQ检查位为逻辑[0]时，预期WAKE_B引脚会被内部或外部拉高到VDDQ，并且预期VDDQ会变低，因此33978不会在WAKE_B下降沿唤醒。逻辑[1]假设用户正在使用外部上拉到VBATP或VDDQ（当不希望VDDQ关闭时），并且IC在WAKE_B下降沿唤醒。
• INT_B out用于在发生中断时选择INT_B引脚的操作方式。IC能够脉冲低电平[1]或锁定低电平[0]。
• Aconfig [1-0]用于确定选择AMUX输出的方法，可以是SPI命令或使用硬连线设置使用SG [3-1]。
• 输入SP0-7可以编程为切换至电池或切换至地。这些输入类型使用设置命令进行定义。要将SPn输入设置为切换至电池，必须设置相应位的逻辑[1]。要将SPn输入设置为切换至地，必须设置相应位的逻辑[0]。MCU可以在正常模式下随时通过软件更改或更新可编程开关寄存器。无论设置如何，当SPn输入开关闭合时，逻辑[1]将放置在串行输出响应寄存器中。