Safe Start Env Header (J10); Flash 0 Block Write Protect Header (J15) - Motorola MVME5500 Installation And Use Manual

Hardware Preparation and Installation
1

Safe Start ENV Header (J10)

Flash 0 Block Write Protect Header (J15)

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