MVME5500 Single-Board Computer Installation and Use - Bustec
MVME5500 Single-Board Computer Installation and Use - Bustec
MVME5500 Single-Board Computer Installation and Use - Bustec
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1<br />
Hardware Preparation <strong>and</strong> <strong>Installation</strong><br />
Safe Start ENV Header (J10)<br />
A 3-pin planar header selects programmed or safe start ENV settings. No<br />
jumper or a jumper across pins 1-2 indicates that the programmed ENV<br />
settings should be used during boot. A jumper across pins 2-3 indicates<br />
that the safe ENV settings should be used.<br />
1<br />
2<br />
3<br />
J10 J10<br />
J10<br />
Normal ENV settings used<br />
during boot<br />
Flash 0 Block Write Protect Header (J15)<br />
A 2-pin planar header supports the Intel K3 Flash family write protect<br />
feature. No jumper installed enables the lock-down mechanism. Blocks<br />
locked down cannot be unlocked with the unlock comm<strong>and</strong>. The jumper<br />
must be installed in order to override the lock-down function <strong>and</strong> enable<br />
blocks to be erased or programmed through software. Refer to the Intel K3<br />
Flash data sheet, listed in Appendix D, Related Documentation, for further<br />
details.<br />
1<br />
2<br />
1-12 <strong>Computer</strong> Group Literature Center Web Site<br />
1<br />
2<br />
3<br />
Normal ENV settings used<br />
during boot<br />
(factory configuration)<br />
J15<br />
Disable Flash 0 K3<br />
block writes<br />
1<br />
2<br />
J15<br />
Enable Flash 0 K3<br />
block writes<br />
(factory configuration)<br />
1<br />
2<br />
3<br />
Safe ENV settings used<br />
during boot
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