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MPC8280 Datasheet(PDF) 621 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 621 Page - Freescale Semiconductor, Inc

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CPM Multiplexing
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
Freescale Semiconductor
16-9
Figure 16-5. Connection of the Master Address
•
For slave mode—The user has two groups of five address pins each. The user decides
which FCC uses each pin by programming CMXUAR[SADx]. Connect any UTOPIA pins
that are not connected to MPC8280 pins to GND. See Figure 16-6.
Figure 16-6. Connection of the Slave Address
FCC1
FCC2
M
S
M
S
M
S
M
S
5
5
5
5
5
5
5
5
8
5
8
5
0
1
2
3
4
4
3
2
1
0
These three bits always relate
These three bits always relate
to FCC2 master
Pins
to an FCC1 master.
These two address bits relate to the
master of FCC1 or FCC2 according
to the programming. Bit 4 is the msb.
FCC1
FCC2
M
S
M
S
M
S
M
S
5
5
5
5
5
5
5
5
8
5
8
5
0
1
2
3
4
4
3
2
1
0
Pins
These 5 address bits relate to the
slave of FCC1 or FCC2 according to
the programming. Bit 4 is the msb.
NOTE: To use FCC2 as shown, connect the FCC2 address bits reversed with
respect to the pinout address indexes. PHY address pins with no pin
connection should be connected to GND.



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