PPC440GR-3PBFFFCX AMCC [Applied Micro Circuits Corporation], PPC440GR-3PBFFFCX Datasheet - Page 49

• Manufacturer Part Number: PPC440GR-3PBFFFCX
• Description: Power PC 440GR Embedded Processor
• Manufacturer: AMCC [Applied Micro Circuits Corporation]

Multimode Signals
In some cases (for example, Ethernet) the function of a pin may vary with different modes of operation. When a pin
has multiple signal names assigned to distinguish different modes of operation, all of the names are shown.
Strapping Pins
One group of pins is used as strapped inputs during system reset. These pins function as strapped inputs only
during reset and are used for other functions during normal operation (see “Strapping” on page 79). Note that
these are not multiplexed pins since the function of the pins is not programmable.
Reserved Pins
The balls marked Reserved on this chip are not functional. However, most of the reserved balls cannot be left
unconnected. Connect the balls shown in Table 6 as indicated:
AMCC Proprietary
440GR – PPC440GR Embedded Processor
Table 6. Non-Functional Ball Connections
R23
R24
U23
V23
W25
W26
Y26
AB23
AB24
AC20
AC21
AC24
AD20
AD21
AD22
AD23
AE22
AE23
AE26
AF23
AF24
Ball
do not connect
do not connect
Connection
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Preliminary Data Sheet
Revision 1.16 – July 19, 2006
49