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PCF5271CVM100 Datasheet(PDF) 26 Page - Freescale Semiconductor, Inc

Part # PCF5271CVM100
Description  32-bit Embedded Controller Division
PDF  56 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PCF5271CVM100 Datasheet(HTML) 26 Page - Freescale Semiconductor, Inc

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MCF5271 Integrated Microprocessor Hardware Specification, Rev. 1.2
Design Recommendations
Freescale Semiconductor
26
The serial mode interface operates in what is generally referred to as AMD mode. The MCF5271
configuration for seven-wire serial mode connections to the external transceiver are shown in Table 24.
Refer to the M5271EVB evaluation board user’s manual for an example of how to connect an external
PHY. Schematics for this board are accessible at the MCF5271 site by navigating to:
http://www.freescale.com.
Table 23. MII Mode
Signal Description
MCF5271 Pin
Transmit clock
ETXCLK
Transmit enable
ETXEN
Transmit data
ETXD[3:0]
Transmit error
ETXER
Collision
ECOL
Carrier sense
ECRS
Receive clock
ERXCLK
Receive enable
ERXDV
Receive data
ERXD[3:0]
Receive error
ERXER
Management channel clock
EMDC
Management channel serial data
EMDIO
Table 24. Seven-Wire Mode Configuration
Signal Description
MCF5271 Pin
Transmit clock
ETXCLK
Transmit enable
ETXEN
Transmit data
ETXD[0]
Collision
ECOL
Receive clock
ERXCLK
Receive enable
ERXDV
Receive data
ERXD[0]
Unused, configure as PB14
ERXER
Unused input, tie to ground
ECRS
Unused, configure as PB[13:11]
ERXD[3:1]
Unused output, ignore
ETXER
Unused, configure as PB[10:8]
ETXD[3:1]
Unused, configure as PB15
EMDC
Input after reset, connect to ground
EMDIO



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