RedBoot User's Guide
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# PowerPC/MPC860T Analogue & Micro PowerPC 860T

## Overview

RedBoot uses the SMC1 serial port. The default serial port settings are 38400,8,N,1. Ethernet is also supported using the RJ-45 connector. Management of onboard flash is also supported.

The following RedBoot configurations are supported:

Configuration | Mode | Description | File
--- | --- | --- | ---
ROMRAM | [ROMRAM] | RedBoot running from RAM, but contained in the board's flash boot sector. | redboot_ROMRAM.ecm

## Initial Installation Method

RedBoot must be installed at the A & M factory.

## Special RedBoot Commands

None.

## Memory Maps

Memory Maps RedBoot sets up the following memory map on the MBX board.

    Physical Address Range Description
    ----------------------- -----------
    0x00000000 - 0x007fffff DRAM
    0xfe000000 - 0xfe0fffff flash (AMD29LV8008B)
    0xff000000 - 0xff0fffff MPC registers

## Rebuilding RedBoot

These shell variables provide the platform-specific information needed for building RedBoot according to the procedure described in Chapter 3:

    export TARGET=viper
    export ARCH_DIR=powerpc
    export PLATFORM_DIR=viper

The names of configuration files are listed above with the description of the associated modes.

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