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Table 1-4 Slot Geographical Address Settings (continued)
Slot Address
GAP GA(4:0)
20
0 01011
21
1 01010
1.4.4
PMC I/O Voltage Configuration
The onboard PMC sites may be configured to support 3.3V or 5.0V I/O PMC modules. To
support 3.3V or 5.0V I/O PMC modules, both PMC I/O keying pins must be installed in the
holes. If both keying pins are not in the same location or if the keying pins are not installed, the
PMC sites will not function. Note that setting the PMC I/O voltage to 5.0V forces the PMC sites
to operate in PCI mode instead of PCI-X mode. The default factory configuration is for 3.3V
PMC I/O voltage.
1.4.5
RTM SEEPROM Address Switch (S1)
A 4-position SMT configuration switch is located on the RTM to set the device address of the
RTM serial EEPROM device. The switch settings are defined in the following table.
Table 1-5 RTM EEPROM Address Switch Assignments
Position
Function
OFF
Table 1-6 EEPROM Address Settings
Device Address
$A0
$A2
$A4
$A6
$A8
$AA (Factory)
MVME3100 Single Board Computer Installation and Use (6806800M28C)
SW3
SW4
SW5
ON
ON
OFF
OFF
ON
OFF
SW1
SW2
A0
A1
1
1
A(2:0)
SW1
000
ON
001
OFF
010
ON
011
OFF
100
ON
101
OFF
Hardware Preparation and Installation
SW6
SW7
ON
OFF
ON
OFF
SW3
A2
1
SW2
ON
ON
OFF
OFF
ON
ON
SW8
OFF
ON
SW4
Not Used
SW3
ON
ON
ON
ON
OFF
OFF
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