Modem 常用AT指令集(15) &W1 Store the active profile in NVRAM profile 1.存储有效参数于NVRAM1区 &Xn - Select Synchronous Clock Source 选择同步时钟源 &X0 Select internal timing for the transmit clock. &X1 Select external timing for the transmit clock. &X2 Select slave receive timing for the transmit clock. &Yn - Designate a Default Reset Profile 指定默认值进行复位 &Y0 Recall stored profile 0 upon power up.使用0区参数 &Y1 Recall stored profile 1 upon power up.使用1区参数