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AT91SAM9G20B-CU Datasheet(PDF) 8 Page - ATMEL Corporation |
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AT91SAM9G20B-CU Datasheet(HTML) 8 Page - ATMEL Corporation |
8 / 42 page 8 6384DS–ATARM–13-Jan-10 AT91SAM9G20 Summary Timer/Counter - TCx TCLKx TC Channel x External Clock Input Input TIOAx TC Channel x I/O Line A I/O TIOBx TC Channel x I/O Line B I/O Serial Peripheral Interface - SPIx_ SPIx_MISO Master In Slave Out I/O SPIx_MOSI Master Out Slave In I/O SPIx_SPCK SPI Serial Clock I/O SPIx_NPCS0 SPI Peripheral Chip Select 0 I/O Low SPIx_NPCS1-SPIx_NPCS3 SPI Peripheral Chip Select Output Low Two-Wire Interface TWD Two-wire Serial Data I/O TWCK Two-wire Serial Clock I/O USB Host Port HDPA USB Host Port A Data + Analog HDMA USB Host Port A Data - Analog HDPB USB Host Port B Data + Analog HDMB USB Host Port B Data - Analog USB Device Port DDM USB Device Port Data - Analog DDP USB Device Port Data + Analog Ethernet 10/100 ETXCK Transmit Clock or Reference Clock Input MII only, REFCK in RMII ERXCK Receive Clock Input MII only ETXEN Transmit Enable Output ETX0-ETX3 Transmit Data Output ETX0-ETX1 only in RMII ETXER Transmit Coding Error Output MII only ERXDV Receive Data Valid Input RXDV in MII, CRSDV in RMII ERX0-ERX3 Receive Data Input ERX0-ERX1 only in RMII ERXER Receive Error Input ECRS Carrier Sense and Data Valid Input MII only ECOL Collision Detect Input MII only EMDC Management Data Clock Output EMDIO Management Data Input/Output I/O Table 3-1. Signal Description List (Continued) Signal Name Function Type Active Level Comments |
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