P&E Microcomputer Systems USB-ML-PPCNEXUS Summary Manual

P&E Microcomputer Systems, Inc. 

P.O. Box 2044, Woburn, MA 01888, USA 

TEL: (617) 353-9206                                                  FAX: (617) 353-9205                                

 http://www.pemicro.com

USB-ML-PPCNEXUS, PowerPC Nexus Multilink Rev. A (USB 2.0) 

Technical Summary 

Document # PE3356, Version 1.1 

1.  Introduction 

2.  Usage Of The PowerPC Nexus Multilink

Interface 

3.  Driver Installation On Windows XP/2000/2003/Vista 

4.  Computers Running Windows 95, 98, ME, or NT 

5.  Using A USB Hub 

6.  Connecting To The Target 

7.  Startup Reset Sequence 

8.  Interface Libraries 

9.  Firmware Updates 

1.0  Introduction 

P&E’s USB POWERPC NEXUS MULTILINK Interface provides access to the JTAG/Nexus port on 

Freescale PowerPC MPC55xx processors. It is the hardware interface between a USB port on a Windows 

2000, 2003,  XP, or Vista machine and the standard 14-pin “Berg” debug connector on the target. By 

using the USB PowerPC Nexus Multilink, the user can take advantage of the JTAG/Nexus debug mode to 

halt normal processor execution and use a PC to control the processor. The user can then directly control 

the target’s execution, read/write registers and memory values, debug code on the processor, and 

program internal or external FLASH memory devices by using the appropriate software packages. The 

pin-out of the connector as specified by Freescale is: