Samsung S3C2451X User Manual page 740

ELECTRICAL DATA
SCLK
SCKE
SADDR
A10/AP
nSCSx
nSRAS
nSCAS
DQMx
nSWE
SDATA
NOTE:
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
29-16
Specifications and information herein are subject to change without notice.
'1'
tSAD
tSAD
tSAD
tSCSD
tSRD
'1'
tSWD
'HZ'
Before executing auto/self refresh command, all banks must be in idle state.
Figure 29-16. SDRAM Auto Refresh Timing (Trp = 2, Trc = 4)
tSCSD
tSRD
'1'
Trp
tSCD
S3C2451X RISC MICROPROCESSOR
Trc