6 flash 0 block write protect switch (s3-2), 7 srom initialization enable switch (s5-2), Figure 1-9 – Artesyn MVME55006E Single Board Computer Installation and Use (July 2014) User Manual
Page 32: S3-2 settings, Figure 1-10, S5-2 settings, Hardware preparation and installation

Hardware Preparation and Installation
MVME55006E Single Board Computer Installation and Use (6806800A37J)
32
1.7.6
Flash 0 Block Write Protect Switch (S3-2)
This switch supports the Intel J3 Flash family write protect feature. Set to OFF, it enables the
lock-down mechanism. Blocks locked down cannot be unlocked with the unlock command.
The switch must be set to ON in order to override the lock-down function and enable blocks to
be erased or programmed through software. Refer to the Intel J3 Flash data sheet, listed in
Appendix C, Related Documentation
, for further details.
1.7.7
SROM Initialization Enable Switch (S5-2)
This switch enables/disables the GT-64260B SROM initialization. When set to 2, it enables the
GT-64260B device initialization via I2C SROM. Set to ON disables this initialization sequence.
Figure 1-9
S3-2 Settings
Disable Flash 0 J3
(factory configuration)
block writes
Enable Flash 0 J3
block writes
S3-2
1
ON
2
3
4
1
ON
2
3
4
Figure 1-10 S5-2 Settings
Enable SROM initialization
Disable SROM initialization
(factory configuration)
1
ON
1
ON
2
2
S5-2
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