Samsung S3C2440A User Manual
Page 545
S3C2440A RISC MICROPROCESSOR
ELECTRICAL DATA
27-27
SCLK
nSRAS
tSAD
Trp
nSCAS
DATA
ADDR/BA
nBEx
tSRD
SCKE
A10/AP
nGCSx
tSCSD
nWE
tSAD
tSCD
tSWD
'1'
tSAD
tSCSD
tSRD
'1'
'1'
'HZ'
Trc
NOTE: Before executing an auto/self refresh command, all the banks must be in idle state.
Figure 27-25 SDRAM Auto Refresh Timing Diagram (Trp=2, Trc=4)
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