Motorola MPC8260 - Manual (Page 499)

MOTOROLA Chapter 15. CPM Multiplexing 15-9
Part IV. Communications Processor Module
Figure 15-6. Connection of the Slave Address
Note that the user must program the addresses of the PHYs to be consecutive for each FCC;
that is, the address lines connected to each FCC must be consecutive.
Figure 15-7 describes the interconnection between the receive external multi-PHY bus and
the internal FCC1 and FCC2 receive multi-PHY addresses. The same diagram applies to
the transmit multi-PHY bus using different dedicated parallel I/O pins.
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.