Motorola CPCI-6020 manual Functional Description, Overview

Functional Description

4

4.1Overview

The CPCI-6020 is a CompactPCI system slot controller based on the PowerPlus III architecture and includes support for the Motorola High Availability (HA) architecture (such as the CPX8216). It consists of the MPC7410 processor and L2 backside cache, dual Harrier System Memory Controller /PCI Host Bridge ASICs, 32 MB plus1 MB of flash memory, and 128 MB to 2 GB of ECC-protected SDRAM on mezzanines. Front panel access is provided for one of the two 10 BaseT/100 Base TX Ethernet channels, an RS-232 serial debug port, two USB ports and the single PMC slot.

The front Ethernet port may also be routed (by means of custom-build option) to the backplane via the CompactPCI J3 and J5 connectors. Other I/O routed to the backplane include a second Ethernet port, two 16550 compatible asynchronous serial ports, two high speed synchronous serial ports, and IDE. A CompactFlash Type I/II compatible socket residing on the IDE Bus is included onboard.

The floppy disk controller, keyboard, and mouse are supported only on the CPCI-6060 5E variants. A parallel port, which was available on the previous generation board, has been eliminated in favor of routing the Ethernet ports to the backplane connectors.

The CPCI-6020 features two host bridges, which allow two totally independent PCI Bus hierarchies. One bus supports the single PMC and the secondary Ethernet port. This bus may be run at 33 MHz or 66 MHz depending on the capability of the installed PMC. When run at 66 MHz, the secondary Ethernet is disabled because it is not 66 MHz capable. The other PCI Bus supports all other onboard PCI resources and runs at a fixed speed of 33 MHz.

The CPCI-6020 board has a 190-pin Mictor connector attached to the processor bus to support board debug. There is also access provided to the MPC7410 processor JTAG port via a standard 16 pin header.

The block diagram for the CPCI-6020 module is shown in Figure 4-1 on page 82.

CPCI-6020 CompactPCI Single Board Computer Installation and Use (6806800A51C) 81