Setting The Flash Memory Bank A/Bank B Reset Vector Header (J15); Setting The Vmebus System Controller Selection Header (J16) - Motorola MVME2301 Installation And Use Manual

Preparing and Installing the MVME2300-Series Module
1

Setting the Flash Memory Bank A/Bank B Reset Vector Header (J15)

Setting the VMEbus System Controller Selection Header (J16)

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Bank B consists of 1 MB of 8-bit Flash memory in two 32-pin PLCC
8-bit sockets.
Bank A consists of four 16-bit Smart Voltage SMT devices that can
be populated with 8Mbit Flash devices (4 MB) or 4Mbit Flash
devices (2 MB). A jumper header, J15, associated with the first set of
four Flash devices provides a total of 64KB of hardware-protected
boot block. Only 32-bit writes are supported for this bank of Flash.
The address of the reset vector is jumper-selectable. A jumper must
be installed either between J15 pins 1 and 2 for Bank A factory
configuration, or between J15 pins 2 and 3 for Bank B. When the
jumper is installed, the Falcon chipset maps 0xFFF00100 to the Bank
B sockets..
J15
1
2
3
Bank A (factory configuration)
The MVME230x is factory-configured in automatic system
controller mode; i.e., a jumper is installed across pins 2 and 3 of
header J16. This means that the MVME230x determines if it is
system controller at system power-up or reset by its position on the
bus; if it is in slot 1 on the VME system, it configures itself as the
system controller.
Remove the jumper from J16if you intend to operate the
MVME230x as system controller in all cases.
Install the jumper across pins 1 and 2 if the MVME230x is not to
operate as system controller under any circumstances.
J15
1
2
3
Bank B