MCF5270CVM150 查看數據表（PDF） - Freescale Semiconductor

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MCF5270CVM150

Integrated Microprocessor Hardware Specification

Freescale Semiconductor 

Mechanicals/Pinouts and Part Numbers

Table 4. MII Mode (continued)

Signal Description

Receive error

Management channel clock

Management channel serial data

MCF5271 Pin

ERXER

EMDC

EMDIO

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 5.

Table 5. Seven-Wire Mode Configuration

Signal Description

Transmit clock

Transmit enable

Transmit data

Collision

Receive clock

Receive enable

Receive data

Unused, configure as PB14

Unused input, tie to ground

Unused, configure as PB[13:11]

Unused output, ignore

Unused, configure as PB[10:8]

Unused, configure as PB15

Input after reset, connect to ground

MCF5271 Pin

ETXCLK

ETXEN

ETXD[0]

ECOL

ERXCLK

ERXDV

ERXD[0]

ERXER

ECRS

ERXD[3:1]

ETXER

ETXD[3:1]

EMDC

EMDIO

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/coldfire.

5.7.3 BDM

Use the BDM interface as shown in the M5271EVB evaluation board user’s manual. The schematics for

this board are accessible at the Freescale website at: http://www.freescale.com/coldfire.

6 Mechanicals/Pinouts and Part Numbers

This section contains drawings showing the pinout and the packaging and mechanical characteristics of

the MCF5271 devices. See Table 4 for a list the signal names and pin locations for each device.

MCF5271 Integrated Microprocessor Hardware Specification, Rev. 4

12

Freescale Semiconductor

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