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SH79F6489P/080PR Datasheet(PDF) 119 Page - SINOWEALTH Electronic Ltd |
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SH79F6489P/080PR Datasheet(HTML) 119 Page - SINOWEALTH Electronic Ltd |
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119 / 152 page  SH79F6488/SH79F6489 119 Table 8.39 Endpoint 0 Control Register 98H (Bank1) Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 EP0CON IEP0DTG OEP0DTG - - IEP0STL IEP0RDY OEP0STL OEP0RDY R/W R/W R/W - - R/W R/W R/W R/W Reset Value (POR/WDT/LVR/PIN) 0 0 - - 0 0 0 0 Bus Reset Value (USB RESET) 0 0 - - 0 U 0 U USB Software Reset Value 0 0 - - 0 0 0 0 Bit No. Bit Mnemonic Description 7 IEP0DTG Endpoint 0 IN Data Toggle bit 0: Reading out ‘0’ indicates that the next data toggle bit is Data1, writing in ‘0’ indicates that the next data toggle bit will be setted as Data1 1: Reading out ‘1’ indicates that the next data toggle bit is Data0, writing in ‘1’ indicates that the next data toggle bit will be setted as Data0 6 OEP0DTG Endpoint 0 OUT Data Toggle bit 0: Reading out ‘0’ indicates that the next data toggle bit is Data1, writing in ‘0’ indicates that the next data toggle bit will be setted as Data1 1: Reading out ‘1’ indicates that the next data toggle bit is Data0, writing in ‘1’ indicates that the next data toggle bit will be setted as Data0 3 IEP0STL Endpoint 0 IN STALL Enable bit 0: Disable Endpoint 0 IN STALL 1: Enable Endpoint 0 IN STALL, When the host sends IN transaction to Endpoint 0, returns a STALL When setup transaction is received, IEP0STL is auto-cleared 2 IEP0RDY Endpoint 0 IN State bit 0: Endpoint 0 IN is not ready, When the host sends IN transaction to Endpoint 0, returns a NAK 1: Endpoint 0 IN is ready When the host sends IN transaction to Endpoint 0, if this bit is ‘1’, the USB transceiver sends data in Endpoint 0 buffer, and after receiving an ACK from the host, this bit is cleared, generate Endpoint 0 IN interrupt. Writing the data (need to be sent to the host) into Endpoint 0 buffer again by software, and setting this bit indicates the next IN transaction can be received. Software write 0 has no effect. 1 OEP0STL Endpoint 0 OUT STALL Enable bit 0: Disable Endpoint 0 OUT STALL 1: Enable Endpoint 0 OUT STALL, when the host sends OUT transaction to Endpoint 0, returns a STALL When setup transaction is received, OEP0STL is auto-cleared 0 OEP0RDY Endpoint 0 OUT State bit 0: Endpoint 0 OUT is not ready, When the host sends OUT transaction to Endpoint 0, returns a NAK 1: Endpoint 0 OUT is ready When the host sends OUT transaction to Endpoint 0, if this bit is ‘1’, the USB transceiver writes data into Endpoint 0 buffer, and after returning an ACK to the host, this bit is cleared, generate Endpoint 0 OUT interrupt. After reading out the data in Endpoint 0 buffer by software, setting this bit indicates the next OUT transaction can be received. Software write 0 has no effect. |
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