Preparing and Installing the MVME2400-Series Module
Setting the Flash Memory Bank A/Bank B Reset Vector Header (J8)
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 devices that are populated with 16Mbit Flash devices (8 MB). A jumper header, J8, 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 J8 pins 1 and 2 for Bank A factory configuration, or between J8 pins 2 and 3 for Bank B. When the jumper is installed, the SMC (System Memory Controller) of the Hawk ASIC maps 0xFFF00100 to the Bank B sockets..
| J8 | | J8 |
1 | | | | | 1 | | | | |
| | | | | | | |
| | | | | | |
2 | | | | | 2 | | | | |
| | |
3 | | | | | 3 | | | | |
| | | | | | | |
Bank A (factory configuration) | Bank B |
Setting the VMEbus System Controller Selection Header (J9)
The MVME240x is factory-configured in automatic system controller mode; i.e., a jumper is installed across pins 2 and 3 of header J9. This means that the MVME240x 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 J9 if you intend to operate the MVME240x as system controller in all cases.
Install the jumper across pins 1 and 2 if the MVME240x is not to operate as system controller under any circumstances.
