EP7312-IB-90 CIRRUS [Cirrus Logic], EP7312-IB-90 Datasheet - Page 20
EP7312-IB-90
Manufacturer Part Number
EP7312-IB-90
Description
High-performance, Low-power, System-on-chip with SDRAM & Enhanced with SDRAM & Enhanced
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.EP7312-IB-90.pdf
(64 pages)
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EP7312
High-Performance, Low-Power System on Chip
SDRAM Refresh Cycle
20
SDRAS
SDCAS
SDCLK
SDATA
SDMWE
SDCS
SDQM
ADDR
[3:0]
Note:
1. Timings are shown with CAS latency = 2
2. The SDCLK signal may be phase shifted relative to the rest of the SDRAM control and data signals due to uneven loading.
Designers should take care to ensure that delays between SDRAM control and data signals are approximately equal
Figure 6. SDRAM Refresh Cycle Timing Measurement
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Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
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