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PRELIMINARY
SROM CONTROLLER
S3C6400X RISC MICROPROCESSOR
6-4
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
PROGRAMMABLE ACCESS CYCLE
HCLK
ADDR
nGCS
DATA(R)
Tacs
Tacc
Tcoh
Tcah
ADDRESS 0
DATA 0
nOE
Tcos
Tacp
DATA 1
ADDRESS 1
Tacs = 2-cycle
Tacp = 2-cycle
Tcos = 2-cycle
Tcoh = 2-cycle
Tacc = 3-cycle
Tcah = 2-cycle
Figure 6-3 SROM Controller Read Timing Block Diagram
HCLK
ADDR
nGCS
DATA(W)
Tacs
Tacc
Tcoh
Tcah
ADDRESS
nWE
Tcos
DATA
Tacs = 2-cycle
Tacp =
don’t care
Tcos = 2-cycle
Tcoh = 2-cycle
Tacc = 3-cycle
Tcah = 2-cycle
Figure 6-4 SROM Controller Write Timing Block Diagram
Note
: Page mode is only supported on read cycle.