Datasheet

R01DS0052EJ0140 Rev.1.40 Page 109 of 150
2014.07.16
RX62N Group, RX621 Group 5. Electrical Characteristics
Figure 5.19 SDRAM Space Multiple Read Line Stride Bus Timing
R1
A18 to A0
SDCLK
SDCS#
AP*
1
DQMn
D31 to D0
RAS#
CAS#
WE#
CKE
SDRAM command
Note 1: Address pins for output of the precharge-setting command (Precharge-sel) for SDRAM.
ACT RD RD RD RD PRA ACT RD RD RD RD PRA
t
CASD
t
RASD
t
CSD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
AD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
CSD2
t
RASD
t
RASD
t
RASD
t
RASD
t
RASD
t
CASD
t
CASD
t
RASD
t
RASD
t
CASD
t
DQMD
t
RDS2
t
RDH2
t
RDS2
t
RDH2
t
RDS2
t
RDH2
t
RDS2
t
RDH2
(High)
Row
Address
C0 (Column
Address 0)
C1 C2 C3 C4 C5 C6 C7
PRA
command
PRA
command
t
WED
t
WED
t
WED
t
WED