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MCF5251VM140 Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc |
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MCF5251VM140 Datasheet(HTML) 9 Page - Freescale Semiconductor, Inc |
9 / 32 page Signal Description MCF5253 ColdFire Processor Data Sheet: Technical Data, Rev. 2.2 Freescale Semiconductor 9 AT attachment interface (IDE interface) ATA_DIOW ATA write strobe signal Out – ATA_DIOR ATA read strobe signal Out – ATA_IORDY ATA I/O ready input In – ATA_DMARQ ATA DMA request In – ATA_DMACK ATA DMA acknowledge Out – ATA_INTRQ ATA interrupt request In – ATA_CS0 ATA chip select 0 Out – ATA_CS1 ATA chip select 1 Out – ATA_A[2:0] 3-bit ATA address bus Out – ATA_D[15:0] 16-bit ATA data bus In/Out – CAN interface CAN0_TX CAN 0 transmit Out – CAN0_RX CAN 0 receive In – CAN1_TX CAN 1 transmit Out – CAN1_RX CAN 1 receive In – USB PHY interface USBVBUS USB Vbus input In – USBID USB ID input In – USBRES USB current programming resistor pin Analog – USBDN USB DM signalling line In/Out – USBDP USB DP signalling line In/Out – USB oscillator USB_CRIN USB_CROUT Connections for USB oscillator crystal (24 MHz) In Out – RTC oscillator RTC_CRIN RTCCROUT Connections for real-time clock crystal (32.768 kHz) In Out – AD IN ADIN0/GPI52 ADIN1/GPI53 ADIN2/GPI54 ADIN3/GPI55 ADIN4/GPI56 ADIN5/GPI57 Analog-to-Digital Converter input signals In – AD OUT ADREF ADOUT/SCLK4/GPIO58 Analog-to-Digital Converter output signal—connects to ADREF via integrator network. In/Out – QSPI clock QSPICLK/SUBR/GPIO25 QSPI clock signal In/Out – QSPI data in RCK/QSPIDIN/QSPIDOUT/GPIO26 QSPI data input In/Out – Table 3. MCF5251 Signal Index (continued) Signal Name Mnemonic Function Input/ Output Reset State |
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