7-10
PmPPC440: Development Mezzanine Card
April 2005
7.3 DMC Jumpers
There are a total of five jumper pairs on the DMC. Pins 9 and 10 are spare jumper
posts. See Fig. 7-1 for the jumper location on the DMC.
Figure 7-7. DMC Jumper Pin Assignments, JP1
7.3.1 Jumper Setting Register
These read-only bits may be read by software at location C100,0028
16
to deter-
mine the current DMC jumper (JP1) settings.
JP1
This is a user-defined jumper.
JP2
JP2 (pins 3 and 4) selects the 8-bit ROM socket as the boot device. In
order for the socket to provide boot code, the DMC must be seated on
the PmPPC440 and the boot jumper must be in place.
JP3
This is a user-defined jumper.
JP4
JP4 is the PPC440GP serial ROM configuration jumper. If JP4 is installed,
the PPC440GP will not try to configure from the serial ROM.
7
6
5
4
3
2
1
0
Reserved
JP4
JP3
JP2
JP1
Register Map 7-1. DMC Jumper
SP
ARE
User-Defined (JP1) BOOT User-Defined (JP3) ROM Config. (JP4)
1
2
9
1
0
3
4
5
6
7
8
(JP2)
Summary of Contents for PmPPC440
Page 1: ...PmPPC440 PowerPC Based Processor PMC Module User s Manual April 2005 ...
Page 3: ...PmPPC440 PowerPC Based Processor PMC Module User s Manual April 2005 ...
Page 14: ...viii PmPPC440 Contents ...
Page 34: ...2 14 PmPPC440 Setup April 2005 ...
Page 42: ...3 8 PmPPC440 PPC440GP Processor April 2005 ...
Page 56: ...6 4 PmPPC440 Ethernet Interface April 2005 ...