Table 33-2. QuadSPI_MCR[SCLKCFG] bit field description(continued)Bit field name Bit field description1: Selecting BUS_CLK as AHB read interface clock and module clock. Mandatory for HSRUN 112configuration.SCLKCFG[5] HyperRAM selection for Flash B - Reference clock selection for DQS for Flash-B0: Clock from SCLKCFG [3] selected as DQS ( HyperRAM Disabled)1: External RWDS from Flash B selected as DQS ( HyperRAM Enabled)NOTE: When HyperRAM is enabled , the 2 x Internal reference clock clock is also required byQuadSPI apart from sfif clock as HyperRAM is a DDR protocol. If user has configuredPLAT_CLK at 80 MHz then the PCC divider for Quadspi asynchronous clock selectionmust be programmed to divby2 and SCLKCFG[5] must be programmed to 1 forHyperRAM functional operation.SCLKCFG[4] Internal reference clock (async clock domain) source selection for Quadspi0: PLL_DIV1 is clock source of Quadspi Internal reference Clock1: FIRC_DIV1 is clock source of Quadspi Internal reference ClockSCLKCFG[3] Reference clock selection for DQS for Flash-B0: Inverted Clock from SCLKCFG [2] selected as DQS1: Clock from SCLKCFG [2] selected as DQSSCLKCFG[2] Reference clock selection for DQS for Flash-B0: Internal Reference Clock selected as DQS1: Loopback clock from PAD SCKB selected as DQSSCLKCFG[1] Reference clock selection for DQS for Flash-A0: Inverted Clock from SCLKCFG [0] selected as DQS1: Clock from SCLKCFG [0] selected as DQSSCLKCFG[0] Reference clock selection for DQS for Flash-A0: Internal Reference Clock selected as DQS1: Loopback clock from PAD SCKA selected as DQS33.1.11 QuadSPI_SOCCR[SOCCFG] implementationTable 33-3. QuadSPI_SOCCR[SOCCFG] bit fielddescriptionBit field name Bit field descriptionSOCCFG[7:0] SOC configuration: Fine delay chain configuration for Flash A7F: Delay of 127 buffers and 128 muxes7E :Delay of 126 buffers and 127 muxes7D :Delay of 125 buffers and 126 muxes---Table continues on the next page...Chapter 33 Quad Serial Peripheral Interface (QuadSPI)MWCT101xS Series Reference Manual, Rev. 3, 07/2019NXP Semiconductors 823
