Internal Sram; Overview; Signals; Block Diagram - Intel PXA27 Series Design Manual

Internal SRAM

There is no existing hardware requirements related to the internal SRAM since the internal SRAM
is not accessible using an external signal. This chapter provides information on the affects of the
power capacitors on the internal SRAM.
4.1

Overview

The internal memory block provides 256 Kbytes of memory-mapped SRAM. The internal memory
is divided into four banks, each is a 64 Kbytes bank. The memory has special power-saving
features, including individual power management for each memory bank.
4.2

Signals

I/O signals are not associated with the internal memory block.
4.3

Block Diagram

The internal memory block has six major modules:
•
System Bus Interface
•
Control/Status Registers
•
Power Management
•
Memory Bank Muxing and Control
•
Queues
•
Four Memory Banks
See the internal memory block diagram in
®
Intel PXA27x Processor Family Design Guide
Figure 4-1.
4
II:4-1