user manual

Chapter 1 Hardware Preparation and Installation
MVME3100 Installation and Use (V3100A/IH1)
7
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.
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.
10 0 10101 ON OFF ON OFF ON OFF
11 1 10100 OFF OFF ON OFF ON ON
12 0 10011 ON OFF ON ON OFF OFF
13 1 10010 OFF OFF ON ON OFF ON
14 1 10001 OFF OFF ON ON ON OFF
15 0 10000 ON OFF ON ON ON ON
16 1 01111 OFF ON OFF OFF OFF OFF
17 0 01110 ON ON OFF OFF OFF ON
18 0 01101 ON ON OFF OFF ON OFF
19 1 01100 OFF ON OFF OFF ON ON
20 0 01011 ON ON OFF ON OFF OFF
21 1 01010 OFF ON OFF ON OFF ON
Table 1-4. Slot Geographical Address Settings (continued)
Slot
Address
GAP
GA(4:0)
SW3 SW4 SW5 SW6 SW7 SW8
Table 1-5. RTM EEPROM Address Switch Assignments
Position SW1 SW2 SW3 SW4
Function A0 A1 A2 Not Used
OFF 111