37.7.17 USB Endpoint Select Register Table 37-19. Register Bit Attribute LegendSymbolDescriptionSymbolDescriptionSymbolDescriptionRReadable bitHCCleared by Hardware(Grey cell)UnimplementedWWritable bitHSSet by HardwareXBit is unknown at ResetKWrite to clearSSoftware settable bit—— Name: INDEXOffset: 0x100EReset: 0x0000Property: PAC Write-ProtectionBit 76543210 SELEP[3:0] Access R/WR/WR/WR/W Reset 0000 Bits 3:0 – SELEP[3:0] Endpoint Registers Select bits