Refresh Timing (Sdram Access) - Renesas PFESiP/V850EP1 User Manual

(c) Refresh Timing (SDRAM access)
TRPW
BUSCLK
(output)
A0-A25
(output)
< t
DKREF
REFRQZ
(output)
Note
CSZn
(output)
SDRASZ
(output)
SDCASZ
(output)
SDWEZ
(output)
DQM0-DQM3
H
(output)
SDCKE
H
(output)
Note n = 1, 3, 4, 6
CHAPTER 1 PRODUCT SPECIFCATIONS
Figure 1-11. Refresh Timing (SDRAM Access)
ALLPRE REFW REFW
< t > < t >
DKA DKA
>
< t > < t >
DKCS DKCS
< t > < t >
DKRAS DKRAS
< t > < t >
DKWE DKWE
User's Manual A19069EJ2V0UM
REFW TREF REFW
< t > < t >
DKCS DKCS
< t > < t >
DKRAS DKRAS
< t > < t >
DKCAS DKCAS
TRPW TRPW TRPW
< t >
DKREF
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