AnsweredAssumed Answered

MPC 5517G JTAG's Device Identification Register

Question asked by Lucian Ghimpu on May 3, 2011
Latest reply on Jun 18, 2011 by Jerome GUEUNIER

Hi everyone i stucked at an annoying problem .

 

I am trying to interogate the "Device Identification Register" through JTAG on a  MPC5517G .

 

And i am recieving a different Number than datasheets says.

 

 

 

 

According  to Datasheet i shopuld recieve this :

 

"* * * * 1 0 0 0 0 0 0 1 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1

 

Device Identification Register

 

 

Field Description

0–3

Part Revision Number. Contains the revision number of the device. This field changes with each revision of the device

 or module.

4–9

Design Center. Indicates the Freescale design center. For the MPC5510 family this value is 0x20.

10–19

Part Identification Number. Contains the part number of the device. For the MPC5510 family, this value is 0x116. 

20–30

Manufacturer Identity Code. Contains the reduced Joint Electron Device Engineering Council (JEDEC) ID for

Freescale, 0xE.

31

Allways 1"

I am recieving another 32 bits word.

 

Something like:

1100 0000 0010 0000 0000 0100 0000 0000 0000

 

Is there any chance this Identification number may vary from what datasheet gives us?

Outcomes