MVME6100-MVME55006E Single Board Computer motorola

Configuring the Hardware

This section discusses certain hardware and software tasks that may need to be performed prior to installing the board in a chassis. To produce the desired configuration and ensure proper operation of the MVME6100, you may need to carry out certain hardware modifications before installing the module. Most options on the MVME6100 are software configurable. Configuration changes are made by setting bits in control registers after the board is installed in a system

Jumpers/switches are used to control those options that are not software configurable. These jumper settings are described further on in this section. If you are resetting the board jumpers from their default settings, it is important to verify that all settings are reset properly. Figure 1-1 illustrates the placement of the jumpers, headers, connectors, switches, and various other components on the MVME6100. There are several manually configurable headers on the MVME6100 and their settings are shown in Table 1-2. Each header’s default setting is enclosed in brackets. For pin assignments on the MVME6100, refer to Chapter 5, Pin Assignments.

Ethernet 2, PMC/SBC Mode, and P2 I/O Selection Headers (J6, J7, J28, J32, J34, J97 – J110) All of the headers described in this section are used in conjunction with each other to select various modes of operation for 10/100BaseT Ethernet, PMC/SBC mode, and P2 I/O mode. Ethernet Four 3-pin planar headers (J6, J7, J100, J101) and four 2-pin planar headers (J34, J97, J98, J99) are for 10/100/BaseT Ethernet 2 selection. Ethernet 1 is the Gigabit Ethernet port and is front panel only. For J6, J100, J7 and J101, install jumpers across pins 2-3 on all four headers for rear P2 Ethernet. For front-panel Ethernet, install jumpers across pins 1-2 on all four headers. If the rear P2 Ethernet is selected by jumpers J6, J7, J100, and J101, the Ethernet signals also connect to PMC 1 user I/O connector J14. If a PMC card is plugged into PMC slot 1, there may be a conflict between the I/O from the PMC card and the rear Ethernet signals. This conflict does not occur with the IPMC761 or IPMC712 modules. For J34, J97, J98 and J99, no jumpers are installed for front-panel Ethernet. For rear P2 Ethernet, install jumpers across pins 1-2 on all four headers when in SBC/IPMC761 mode.

PMC/SBC Mode Selection

The MVME55006E is set at the factory for PMC mode. The SBC/IPMC761 mode should only be selected when using the IPMC761 module in conjunction with the MVME761 transition module. The PMC mode should be selected when using PMC modules with specific user I/O in conjunction with the corresponding transition module. PMC mode should also be selected when using PrPMC modules. Two 3-pin planar headers (J28, J32) control the supply of +/- 12 volts to the P2 connector; one or both of these voltages are required by the MVME712 or MVME761 module when operating in SBC mode. For PMC mode, jumpers are installed across pins 1-2 on both headers. For SBC/IPMC761 mode, install jumpers across pins 2-3 on both headers. For SBC/IPMC712 mode, install a jumper across pins 2-3 for J32 and install a jumper across pins 1-2 for J28.

P2 I/O Selection

Nine 3-pin planar headers (J102 –J110) are for P2 I/O selection. Jumpers are installed across pins 1-2 on all nine headers when in PMC mode. Install jumpers across pins 2-3 on all nine headers when in SBC/IPMC761 or SBC/IPMC712 mode to connect the extended SCSI signals to P2.

Flash Boot Bank Select Header (J8)

A 3-pin planar header selects the boot flash bank. No jumper or a jumper installed across pins 1-2 selects flash 0 as the boot bank. A jumper installed across pins 2-3 selects flash 1 as the boot bank.

Flash 0 Programming Enable Switch (S3-1)

This switch enables/disables programming of flash 0 as a means of protecting the contents from being corrupted. The switch set to OFF disables all flash 0 programming. The switch set to ON enables the programming, this is the factory setting

Safe Start ENV Switch (S5-1)

This switch selects programmed or safe start ENV settings. When set to OFF, it indicates that the programmed ENV settings should be used during boot. Set to ON indicates that the safe ENV settings should be used.

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.