Coprocessors

5.2.14Register 15 – Test, Clock, and Idle Control

Register 15 is a write-only register. The CRm and OPC_2 fields are used to encode the following control operations. Operation for all other values of OPC_2 and CRm is unpredictable.

Function

OPC_2

CRm

 

 

 

Enable odd-word loading of the linear feedback shift

0b001

0b0001

register ( LFSR)

 

 

 

 

 

Enable even-word loading of LFSR

0b001

0b0010

 

 

 

Clear LFSR

0b001

0b0100

 

 

 

Move LFSR to R14.abort

0b001

0b1000

 

 

 

Enable clock switching

0b010

0b0001

 

 

 

Disable clock switching

0b010

0b0010

 

 

 

RESERVED

0b010

0b0100

 

 

 

Wait for interrupt

0b010

0b1000

 

 

 

SA-1100 Developer’s Manual

5-9

Page 53
Image 53
Intel SA-1100 manual Register 15 Test, Clock, and Idle Control, 0b010 0b0100 Wait for interrupt 0b1000