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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC2F35 датащи(PDF) 29 Page - Megawin Technology Co., Ltd |
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MPC2F35 датащи(HTML) 29 Page - Megawin Technology Co., Ltd |
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29 / 46 page  MEGAWIN MPC2F35_USB Data Sheet 29 RXSTAT: Endpoint Receive Status Register (Endpoint-Indexed) Read/Write Address: 22H Default: 0000_0XXX System Reset or USB Reset Bit Number Bit Mnemonic Function 7 RXSEQ Receive Endpoint Sequence Bit (read, conditional write): The bit will be toggled on completion of an ACK handshake in response to an OUT token. This bit can be written by firmware if the RXOVW bit is set when written along with the new RXSEQ value. 6 RXSETUP Received Setup Transaction: This bit is set by hardware when a valid SETUP transaction has been received. Clear this bit upon detection of a SETUP transaction or the firmware ready to handle the data/status stage of control transfer. 5 STOVW Start Overwrite Flag (read-only): Set by hardware upon receipt of a SETUP token for any control endpoint to indicate that the receive FIFO is being overwritten with new SETUP data. This bit is used only for control endpoints. 4 EDOVW End Overwrite Flag: This flag is set by hardware during the handshake phase of a SETUP stage. This bit is cleared by firmware to read FIFO data. This bit is only used for control endpoints. 3 RXSOVW Receive Data Sequence Overwrite Bit: Write ‘1’ to this bit to allow the value of the RXSEQ bit to be overwritten. Writing a ‘0’ to this bit, it has no effect on RXSEQ. This bit always returns to ‘0’ when read. 2 - Reserved: Write zero to this bit. 1 - Reserved: Write zero to this bit. 0 - Reserved: Write zero to this bit. |
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