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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPSD3233 датащи(PDF) 88 Page - STMicroelectronics |
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UPSD3233 датащи(HTML) 88 Page - STMicroelectronics |
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88 / 170 page  uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV 88/170 The USCL 8-bit Prescaler Register for USB is at E1h. The USCL should be loaded with a value that results in a clock rate of 6MHz for the USB using the following formula: USB clock input = (fOSC / 2) / (Prescaler register value +1) Where fOSC is the MCU clock input frequency. Note: USB works ONLY with the MCU Clock fre- quencies of 12, 24, or 36MHz. The Prescaler val- ues for these frequencies are 0, 1, and 2. Table 80. USB SFR Memory Map SFR Addr Reg Name Bit Register Name Reset Value Comments 7 6 543 21 0 E1 USCL 00 8-bit Prescaler for USB logic E6 UDT1 UDT1.7 UDT1.6 UDT1.5 UDT1.4 UDT1.3 UDT1.2 UDT1.1 UDT1.0 00 USB Endpt1 Data Xmit E7 UDT0 UDT0.7 UDT0.6 UDT0.5 UDT0.4 UDT0.3 UDT0.2 UDT0.1 UDT0.0 00 USB Endpt0 Data Xmit E8 UISTA SUSPND — RSTF TXD0F RXD0F RXD1F EOPF RESUMF 00 USB Interrupt Status E9 UIEN SUSPNDIE RSTE RSTFIE TXD0IE RXD0IE TXD1IE EOPIE RESUMIE 00 USB Interrupt Enable EA UCON0 TSEQ0 STALL0 TX0E RX0E TP0SIZ3 TP0SIZ2 TP0SIZ1 TP0SIZ0 00 USB Endpt0 Xmit Control EB UCON1 TSEQ1 EP12SEL — FRESUM TP1SIZ3 TP1SIZ2 TP1SIZ1 TP1SIZ0 00 USB Endpt1 Xmit Control EC UCON2 — — — SOUT EP2E EP1E STALL2 STALL1 00 USB Control Register ED USTA RSEQ SETUP IN OUT RP0SIZ3 RP0SIZ2 RP0SIZ1 RP0SIZ0 00 USB Endpt0 Status EE UADR USBEN UADD6 UADD5 UADD4 UADD3 UADD2 UADD1 UADD0 00 USB Address Register EF UDR0 UDR0.7 UDR0.6 UDR0.5 UDR0.4 UDR0.3 UDR0.2 UDR0.1 UDR0.0 00 USB Endpt0 Data Recv |
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