EP7311 datasheet(22/58 Pages) CIRRUS

Part #	EP7311

Description	High-performance, Low-power, System-on-chip with SDRAM & Enhanced Digital Audio Interface

PDF	58 Pages

Scroll/Zoom	100%

Manufacturer	CIRRUS [Cirrus Logic]

Direct Link	http://www.cirrus.com

Logo

22 / 58 page

©Copyright Cirrus Logic, Inc. 2005

DS506F1

EP7311

High-Performance, Low-Power System on Chip

Static Memory Single Read Cycle

Note:

1. The cycle time can be extended by integer multiples of the clock period (22 ns at 45 MHz, 27 ns at 36 MHz, 54 ns at

18.432 MHz, and 77 ns at 13 MHz), by either driving EXPRDY low and/or by programming a number of wait states. EXPRDY is

sampled on the falling edge of EXPCLK before the data transfer. If low at this point, the transfer is delayed by one clock period

where EXPRDY is sampled again. EXPCLK need not be referenced when driving EXPRDY, but is shown for clarity.

2. Address, Halfword, Word, and Write hold state until next cycle.

EXPCLK

nCS

nMWE

HALF-

WORD

WRITE

nMOE

CSd

CSh

MOEh

HWd

WDd

WRd

MOEd

EXPRDY

EXh

EXs

Figure 7. Static Memory Single Read Cycle Timing Measurement

EP7311 Datasheet(PDF) 22 Page - Cirrus Logic