10 pci bus 1.0 speed switch (s4-2), 11 eeprom write protect switch (s3-3), Figure 1-13 – Artesyn MVME55006E Single Board Computer Installation and Use (July 2014) User Manual
Page 34: S4-2 settings, Figure 1-14, S3-3 settings, Hardware preparation and installation
Hardware Preparation and Installation
MVME55006E Single Board Computer Installation and Use (6806800A37J)
34
1.7.10 PCI Bus 1.0 Speed Switch (S4-2)
This switch can force PCI bus 1.0 to run at 33 MHz rather than the standard method of allowing
the PMC board to control whether the bus runs at 33 MHz or 66 MHz. Set to 1, it allows the PMC
board to choose the PCI 1.0 bus speed. Set to ON forces PCI bus 1.0 to run at 33 MHz.
1.7.11 EEPROM Write Protect Switch (S3-3)
This switch enables/disables programming of the on-board EEPROMs as a means of protecting
the contents from being corrupted. Set to 1, it disables EEPROM programming by driving the
WP pin to a logic high. Set to ON to program any of the EEPROMs at addresses A0, A6, A8,
and/or AA.
Figure 1-13 S4-2 Settings
PMC board controls
(factory configuration)
Force PCI bus 1.0
PCI 1.0 bus speed
to run at 33 MHz
1
ON
1
ON
2
2
S4-2
Figure 1-14 S3-3 Settings
Disables EEPROM
Enables EEPROM programming
programming
(factory configuration)
S3-3
1
ON
2
3
4
1
ON
2
3
4