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MPC8540 Datasheet(PDF) 757 Page - Freescale Semiconductor, Inc

Part # MPC8540
Description  MPC8540 PowerQUICC III??Integrated Host Processor Reference Manual
PDF  1302 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8540 Datasheet(HTML) 757 Page - Freescale Semiconductor, Inc

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Initialization/Application Information
MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1
Freescale Semiconductor
14-131
14.7 Initialization/Application Information
14.7.1 Interface Mode Configuration
This section describes how to configure the TSEC in different supported interface modes. These
include MII, GMII, TBI, RGMII, RTBI. The pinout, the data registers that must be initialized, as
well as speed selection options are described. The ECNTRL[TBIM] and ECNTRL[RPM] bits are
written, assuming the part was not pin-configured at initialization to the correct mode.
14.7.1.1 MII Interface Mode
Table 14-122 describes the signal configurations required for MII interface mode.
Table 14-122. MII Interface Mode Signal Configuration
TSEC Signals
Frequency [MHz] 125
Voltage[V] 3.3/2.5
MII Interface
Frequency [MHz] 25
Voltage[V] 3.3
Signals
I/O
No. of
Signals
Signals
I/O
No. of
Signals
GTX_CLK
O
1
Leave Unconnected
O
TX_CLK
I
1
TX_CLK
I
1
TxD[0]
O
1
TxD[0]
O
1
TxD[1]
O
1
TxD[1]
O
1
TxD[2]
O
1
TxD[2]
O
1
TxD[3]
O
1
TxD[3]
O
1
TxD[4]
O
1
Leave Unconnected
O
TxD[5]
O
1
Leave Unconnected
O
TxD[6]
O
1
Leave Unconnected
O
TxD[7]
O
1
Leave Unconnected
O
TX_EN
O
1
TX_EN
O
1
TX_ER
O
1
TX_ER
O
1
RX_CLK
I
1
RX_CLK
I
1
RxD[0]
I
1
RxD[0]
I
1
RxD[1]
I
1
RxD[1]
I
1
RxD[2]
I
1
RxD[2]
I
1
RxD[3]
I
1
RxD[3]
I
1
RxD[4]
I
1
not used
I
RxD[5]
I
1
not used
I



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