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USB2240 数据表(PDF) 6 Page - Microchip Technology |
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USB2240 数据表(HTML) 6 Page - Microchip Technology |
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6 / 43 page ![]() USB224X DS00001979A-page 6 2010 - 2015 Microchip Technology Inc. FIGURE 3-2: USB2244/44I BLOCK DIAGRAM FMDU CTL 8051 PROCESSOR SFR RAM SD/ MMC RAM USB Host AUTO_CBW PROC PHY FMI XDATA BRIDGE + BUS ARBITER BUS INTFC BUS INTFC BUS INTFC EP0 TX EP0 RX EP2 TX EP2 RX EP1 RX EP1 TX ROM 64 KB RAM 10 KB ADDR MAP PWR_FET1 CRD_PWR Clock Generation and Control 4K total 3.3 V 1.8 V Reg VDD18 3.3 V VDD18PLL PLL 24 MHz Crystal SIE CTL 1.8 V Reg USB2244/USB2244I Media Interface SPI Interface SPI Interface Trace FIFO Program Memory I/O Bus |
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