Datasheet

R01DS0052EJ0140 Rev.1.40 Page 102 of 150
2014.07.16
RX62N Group, RX621 Group 5. Electrical Characteristics
Figure 5.11 External Bus Timing/Normal Write Cycle (Bus Clock Synchronized)
A23 to A1
CS7# to CS0#
t
AD
BCLK
A23 to A0
Byte write strobe mode
1-write strobe mode
BC3# to BC0#
Common to both byte write strobe
mode and 1-write strobe mode
t
BCD
t
CSD
t
CSD
t
AD
t
AD
t
AD
t
BCD
D31 to D0 (Write)
WR3# to WR0#, WR# (Write)
t
WRD
t
WRD
t
WDH
t
WDD
T
W1
T
W2
T
end
T
n1
WRON:1
WDON:1
*1
CSWWAIT:2
CSWOFF:1
WDOFF:1
*1
CSON:0
Note1: Be sure to specify WDON and WDOFF as at least one cycle of BCLK.