SMART Embedded Computing Penguin Edge MVME250 Series Installation And User Manual page 71

Table 3-19 SMT Configuration Switch Settings (continued)
SW2 DEFAULT
5 OFF (133 MHz)
6 OFF (WP Enabled)
7 OFF (Front)
OFF (CPU Reset
8
Deasserted)
MVME2502 Installation and Use (6806800R96L)
Controls, LEDs, and Connectors
Signal Name Description
PCI frequency
PMC_133
selection
The on-board
EEPROM can be
MASTER_WP_ write-protected via S2-
DISABLED 6, switching it ON will
disable the write
protection.
User Defined switch
that will select if the
GBE_MUX_
GBE PHY will function
SEL
on the front panel or on
the Back PLANE
Reserved
Notes
This option can only be
used if the PMC supports
PCI-X interface. The board
will automatically detect the
frequency of operation of
the PMC and the board will
negotiate accordingly. If the
PMC support PCI-X speed,
this switch can be
configured to run either 100
MHz or 133MHz frequency.
For I2C write-protect only.
Should be OFF for normal
operation.
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