3.7.3 Signal DescriptionTable 3-34. Signal DescriptionNameDescriptionTypeActive LevelSDCKSDRAM ClockOutput–SDCKESDRAM Clock EnableOutputHighSDCSSDRAMC Chip SelectOutputLowBA[1:0]Bank Select SignalsOutput–RASRow SignalOutputLowCASColumn SignalOutputLowSDWESDRAM Write EnableOutputLowNBS[3:0]Data Mask Enable SignalsOutputLowSDRAMC_A[12:0]Address BusOutput–D[31:0]Data BusI/O–