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Eight beat burst read from burst-of-four rom -21, Figure 10-7, Figure 10-8 – Intel STRONGARM SA-1100 User Manual

Page 135

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SA-1100 Developer’s Manual

10-21

Memory and PCMCIA Control Module

Figure 10-7. Eight Beat Burst Read from Burst-of-Four ROM

Figure 10-8. Nonburst ROM, SRAM, or Flash Read Timing Diagram – Four Data Beats

A4781-01

Memory Clock

nCS0

RDF+1.5

RDF+1

RDN+1 RDN+1 RDN+1

RDN+1 RDN+1 RDN+1

(2*RRR)+1

A[25:5]

A[4]

nOE

Input Data

Latch

nCS1

Input Data

A[3:2]

0

D0

D1

D2

D3

D4

D5

D6

1

2

3

0

1

2

3

A4782-01

Memory Clock

nCS0

RDF+1.5

RDF+1

nCAS[3:0]

nOE

(SRAM only)

Read

(Input) Data

nCS1

Latch

Read Data

A[25:0]

RDF+1

RDF+1

(2*RRR)+1

A0

A1

A2

A3

D0

D1

D2

D3