Memory controller 6, 1 overview, Memory controller -1 – Intel PXA255 User Manual

Page 183: Overview -1

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Intel® PXA255 Processor Developer’s Manual

6-1

Memory Controller

6

This chapter describes the external memory interface structures and memory-related registers
supported by the PXA255 processor.

6.1

Overview

The processor external memory bus interface supports Synchronous Dynamic Memory (SDRAM),
synchronous and asynchronous burst modes, Page-mode flash, Synchronous Mask ROM
(SMROM), Page Mode ROM, SRAM, SRAM-like Variable Latency I/O (VLIO), 16-bit PC Card
expansion memory, and Compact Flash. Memory types can be programmed through the Memory
Interface Configuration registers.

Figure 6-1

is a block diagram of the maximum configuration of

the memory controller.

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