User manual

ARM DDI0198D Copyright © 2001-2003 ARM Limited. All rights reserved. 8-1
Chapter 8
Coprocessor Interface
This chapter describes the ARM926EJ-S coprocessor interface. It contains the
following sections:
• About the ARM926EJ-S external coprocessor interface on page 8-2
• LDC/STC on page 8-4
• MCR/MRC on page 8-6
• CDP on page 8-8
• Privileged instructions on page 8-9
• Busy-waiting and interrupts on page 8-10
• CPBURST on page 8-11
• CPABORT on page 8-12
• nCPINSTRVALID on page 8-13.