EP7312-CB-90 CIRRUS [Cirrus Logic], EP7312-CB-90 Datasheet - Page 18

• Manufacturer Part Number: EP7312-CB-90
• Description: HIGH-PERFORMANCE, LOW-POWER SYSTEM ON CHIP WITH SDRAM AND ENHANCED DIGITAL AUDIO INTERFACE
• Manufacturer: CIRRUS [Cirrus Logic]

EP7312
High-Performance, Low-Power System on Chip
SDRAM Burst Read Cycle
18
SDMWE
SDRAS
SDCAS
SDCLK
SDQM
ADDR
SDCS
DATA
[0:3]
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.
t
t
CSd
RAd
t
t
CSa
RAa
t
ADv
ADRAS
Figure 4. SDRAM Burst Read Cycle Timing Measurement
©
C opyright Cirrus Logic, Inc. 2003
t
t
CSd
CAd
t
t
CSa
CAa
(All Rights Reserved)
t
ADv
t
t
DAh
DAs
ADCAS
D1
t
t
DAh
DAs
D2
t
t
DAh
DAs
D3
t
t
DAh
DAs
D4
DS508PP5
t
RAnv