arm7开发板原理图.pdf
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arm7开发板原理图.pdf

arm7开发板原理图.pdf

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12345678DDIn32-bitdatamodebesupportedbelow,-UART2channelwithRTS/CTS-orUART0'sRxD/TxDwithRTS/CTS&SIOVDDU1116C1+VCCC9C120.1uF0.1uF32C1-V+VDD46C2+V-P1U2C11C13CONNECTORDB9C0.1uFC0.1uF1515116C2-GNDC1+VCC621411TxD0C10C14T1OUTT1IN7nCTS0_M1312RxD0R1INR1OUT0.1uF0.1uF3TXD1_M710TxD132T2OUTT2INC1-V+8nRTS0_MTXD2_M89RxD1R2INR2OUT446C2+V-95C15C16MAX3232C0.1uF5150.1uFC2-GNDnRTS0_M1411nRTS0P2T1OUTT1IN1312nCTS0CONNECTORDB9R1INR1OUTnCTS0_M710nRTS1T2OUTT2IN189nCTS1R2INR2OUT62TXD1_M7nCTS1_MMAX3232C3TXD2_M8nRTS1_M495BB(FEMAIL)nRTS1_MnCTS1_MUARTInterfaceIn32-bitmode,UART0HandshakeAATitleSizeNumberRevisionA3Date:12-May-2003SheetofFile:F:\LAYOUT\ARM_DEVELOP_BOARDV1.0\ARM_DEVELOP_BOARD.DdbDrawnBy:12345678123456789101112DDVDDU3AD1LED012R5J1330CON40VDD74HC04LEDU3B40393837363534333231302928272625242322212019181716151413121110987654321D2R6OM[1:0]:BusSizeVDDLED13400:Byte(8-bit)330R9R10R11R1201:Halfword(16-bit)S110:Word(32-bit)74HC044.7K4.7K4.7K4.7K13LED11:TestModeR1DATA14DATA1524KEYIN3U3CENDIANH:Big,L:LittleSW_PUSH210KEXTAL1XTAL1AIN7AIN6D3LED256R7AVCOMAREFBAREFTS2330D12SUSPDLED0LED1LED21374HC04LEDOM0nRTS1nCTS1nRTS0nCTS0VD0VD1VD2VD3VCLKVLINEVMVFRAME24KEYIN2R2OM0SW_PUSH210KTxD1RxD1TxD0RxD02VD7VD6VD5VD4VDD_CPUS3JP1OM1OM31324KEYIN1R3OM12R13SW_PUSH210KnDISP-ON1nEL-ON4.7KJP2OM2S413VDDADCEDNJ824KEYIN0R423U3D1HD3SW_PUSH210KVDDRTCnDISP-ON98DISP-ONJP32ENDIAN74HC0411U3EOM[3:2]:ClockMode00:Crystal,PLLonnEL-ON1110EL-ONJ1001:Externall,PLLonVD010:TestMode1VD1R1511:TestMode74HC042VD234.7KVDD_CPUVDDRTCVD34VD45VD56VDDIOVDDADCVD67C17103VD78VR1VFRAMEnEL-ON9BootROMBusSize,ENDIAN,andClockModeSelectCVDD20KGNDCnDISP-ON10VCLK11VLINE12C18103VCTL13VM14nRESETVD7VD6VD5VD415EL-ONTxD1RxD1TxD0RxD016C19103XTAL1VDDIO17DISP-ONnRTS1nCTS1nRTS0nCTS0VD0VD1VD2VD3VCLKVLINEVMVFRAME18D12SUSPDLED0LED1LED219X1VCC5.0CON2032.768kHz20DATA15AVCOMAREFBAREFTDATA14