HM1FRQSEL2Reserved3Reserved4Reserved5IFB_REF6Multi_INV7RXD18TXD19IFB_IN10FWDCK11FWDAT12DT013DT114RSTN15GND16VDD17LDO1518TFB119TFB220Phase_SEL21AC_Fout22Test_Mode23SST24VZC_IN25VAC_FB26VDC_IN27AC_RST28RXD029TXD030LEDG31IFB2P32IFB2N33LEDR34IFB1P35IFB1N36OSCIN37OSCOUT38PWM1L39PWM1H40FAN_PWM41FAN_RPM_IN42PWM2L43PWM2H44Reserved45Reserved46Reserved47Reserved48