MOTOROLA IPMC712 MODULE

MOTOROLA  IPMC712 MODULE

DESCRIPTION

The IPMC712 and IPMC761 are optional modules that provide backward compatibility with earlier Motorola products using the MVME761 or MVME712M rear transition modules.

General Functionality

Both models are designed around a PMC form factor and both modules incorporate a PCI-toISA bridge, Ultra-wide SCSI adapter, and Super I/O functionality. Both modules are single wide, standard length, standard height PMC boards. They attach to the host board PCI bus via the PMC P11, P12, P13, P14, and P15 connectors.

■ One single-ended ultra-wide SCSI port 

■ One parallel port 

■ Four serial ports (2 or 3 asynchronous and 1 or 2 synchronous/asynchronous, depending on the module)

IPMC Mode

In IPMC mode, the MVME 6100, MVME5500, and MVME5100 support legacy MVME761 or MVME712M rear transition modules (with limited PMC I/O) when an IPMC712 or IPMC761 module is installed in PMC slot 1. In this configuration, PMC slot 2 contains some signals that are reserved for extended SCSI

PCI Bus Interface

Both modules contain four EIA-E700 AAAB connectors, which provide a 32-bit PCI interface to an IEEE P1386.1 PMC-compliant host board such as the MVME6100, MVME5500, or MVME5100.

Connectors P11-P13 on each module provide the 32-bit PCI interface while P14 provides an I/O path from the module to the host board.

Signals routed to P14 include: narrow SCSI, parallel port, COM1 and COM2 synchronous serial ports, COM3 and COM4 synchronous serial ports, power, and P2 mux signals. The remaining SCSI data lines are routed to P15.

The on-board PCI devices on each module are as follows: 

■ Winbond PCI-to-ISA Bridge (PIB) 

■ LSI SCSI device (SYM53C895A)

SCSI

The SCSI controller is an LSI Logic SYM53C895A device. The SCSI clock frequency is 40 MHz. The SCSI controller features: 

■ 32-bit PCI Interface with 64-bit addressing 

■ 8KB internal SCRIPTS RAM 

■ Improved PCI caching design (improves PCI bus efficiency)

Input/Output Modes

Both modules are designed to be plugged into PMC slot 1 of the base board. As stated earlier, these SBCs have two P2 I/O modes (IPMC and PMC) that are user configurable. The user should configure the baseboard for the IPMC module being used.

The jumpers route the on-board Ethernet port 2 to row C of connector P2. When used, both modules are backwards compatible with the MVME761 rear transition module and P2 adapter card (excluding PMC I/O routing) used on the MVME2600/2700. The rear panel Ethernet is not available when using the IPMC712.

LEDs

Both modules use two LEDs to provide PMC status. 

■ The module’s green SCSI LED is lit when the SCSI device is Master 

■ The module’s green PIB LED is lit when the PCI bus grant to the PIB is asserted