BPW480-1270-29AD01
Etec
The Etec BPW480-1270-29AD01 is a PGA to BGA translational socket
Application NoteNxp
AN2075: Using the MPC8260ADS Board with the MPC8255
Guidelines for configuring the MPC8260ADS development board for MPC8255 applications, covering hardware settings, clock speeds, and peripheral compatibility.
Overview
This application note describes how to utilize the MPC8260ADS development board for MPC8255 system development. It outlines the architectural differences between the MPC8255 and MPC8260, specifically noting that the MPC8255 features fewer Fast Communications Controllers (FCCs) and Multi-Channel Controllers (MCCs), and has lower maximum clock speeds for the core, CPM, and bus. The document provides technical instructions for hardware configuration, including replacing the U16 clock generator oscillator with a 50MHz unit such as the Mtron M3H16FCD and adjusting the DS1 switch settings to set the proper Core and CPM speed values via MODCK bits. It also details the procedure for processor replacement using the Etec BPW480-1270-29AD01 socket and discusses compatibility with third-party debuggers and existing MPC8260 code.
Use Cases
- Developing and debugging applications for the MPC8255 processor using existing MPC8260ADS hardware
- Configuring bus, core, and CPM clock speeds for PowerQUICC II development boards
- Migrating communications processor designs from MPC8260 to MPC8255
- Hardware modification for 50MHz bus speed requirements
Topics
MPC8255
MPC8260
MPC8260ADS
PowerQUICC II
NXP
Freescale
Communication Processors
MODCK
Hard Reset Configuration Word
HRCW
M3H16FCD
BPW480-1270-29AD01
Referenced Parts
M3H16FCD
Mtron
An example oscillator for this function is the M-TRON M3H16FCD at 50Mhz. Location U16 is socketed
MPC8255
NXP
MPC8255 device or in an MPC8255 mode of operation.
MPC8260
NXP
The MPC8260ADS board comes equipped with an MPC8260 in the processor socket.
| BPW480-1270-29AD01 | Etec | The Etec BPW480-1270-29AD01 is a PGA to BGA translational socket |
| M3H16FCD | Mtron | An example oscillator for this function is the M-TRON M3H16FCD at 50Mhz. Location U16 is socketed |
| MPC8255 | NXP | MPC8255 device or in an MPC8255 mode of operation. |
| MPC8260 | NXP | The MPC8260ADS board comes equipped with an MPC8260 in the processor socket. |