EP7212-CV-A View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

EP7212-CV-A

High-Performance, Low-Power System-on-Chip with LCD Controller and Digital Audio Interface (DAI)

Cirrus Logic 

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EP7212

EXPCLK

DRA[12:0]

RAS0

CAS[3:0]

tVACC

ROW

COL0 COL1

COL2

COL3

tRP

tCAS tCP

tPC

D[31:0]

0

1

2

3

NOTES:

Figure 20. Video Quad Word Read from DRAM at 13 MHz and 18 MHz

1). Timings are the same as page mode word reads

2) tVACC (video access cycle time) = 326 ns at EXPCLK = 18.432 MHz and 462 ns at 13 MHz

EXPCLK

DRA[12:0]

NRAS[1:0]

NCAS[3:0]

D[31:0]

ROW

COL0 COL1 COL2 COL3

tRP

TVAC

tCAS tCP tPC

1

2

3

4

NOTES:

Figure 21. Quad Word Read from DRAM at 36 MHz

1). Timings are the same as page mode word reads

2) tVACC (video access cycle time) = 220 ns at EXPCLK = 36 MHz

3) The filled-in grey areas are don’t cares.

DS474PP1

107

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