User manual

ARM DDI0198D Copyright © 2001-2003 ARM Limited. All rights reserved. 5-1
Chapter 5
Tightly-Coupled Memory Interface
This chapter describes the ARM926EJ-S Tightly-Coupled Memory (TCM) interface. It
contains the following sections:
• About the tightly-coupled memory interface on page 5-2
• TCM interface signals on page 5-4
• TCM interface bus cycle types and timing on page 5-8
• TCM programmer’s model on page 5-19
• TCM interface examples on page 5-20
• TCM access penalties on page 5-29
• TCM write buffer on page 5-30
• Using synchronous SRAM as TCM memory on page 5-31
• TCM clock gating on page 5-32.