RX230 Datasheet, PDF (124/177 Pages) Renesas Technology Corp – 54-MHz 32-bit RX MCUs, built-in FPU, 88.56 DMIPS, up to 512-KB flash memory

RX230 Group, RX231 Group
5. Electrical Characteristics
CSRWAIT:2
RDON:1
CSON:0
TW1
TW2
BCLK
Byte-write strobe mode
tAD
A23 to A0
1-write strobe mode
tAD
A23 to A1
tBCD
BC1#, BC0#
Common to byte-write strobe mode
and 1-write strobe mode
tCSD
CS3# to CS0#
tRSD
RD# (Read)
CSPRWAIT:2
RDON:1
Tend
Tpw1
Tpw2
CSPRWAIT:2
RDON:1
Tend
Tpw1
Tpw2
CSPRWAIT:2
RDON:1
Tend
Tpw1
Tpw2
CSROFF:1
Tend
Tn1
Th
tAD
tAD
tAD
tAD
tAD
tAD
tAD
tAD
tBCD
tRSD
tRSD
tRSD
tRSD
tRSD
tRSD
tRSD
tCSD
D15 to D0 (Read)
tRDS
tRDH
tRDS
tRDH
tRDS
tRDH
tRDS
tRDH
Figure 5.40 External Bus Timing/Page Read Cycle (Bus Clock Synchronization)
CSWWAIT:2
WRON:1
WDON:1^*1
CSON:0 T_W1
TW2
CSPWWAIT:2
WDOFF:1^*1
Tend
Tdw1
WRON:1
WDON:1^*1
Tpw1
Tpw2
WDOFF:1^*1
Tend
Tdw1
CSPWWAIT:2
WRON:1
WDON:1^*1
Tpw1
Tpw2
CSWOFF:1
WDOFF:1^*1
Tend
Tn1
Th
BCLK
Byte-write strobe mode
tAD
tAD
tAD
tAD
A23 to A0
1-write strobe mode
tAD
tAD
tAD
tAD
A23 to A1
tBCD
tBCD
BC1#, BC0#
Common to byte-write strobe mode
and 1-write strobe mode
tCSD
tCSD
CS3# to CS0#
tWRD
tWRD
tWRD
tWRD
tWRD
tWRD
WR1#, WR0#, WR# (Write)
tWDD
D15 to D0 (Write)
tWDH
tWDD
tWDH
tWDD
tWDH
Figure 5.41
Note 1. Be sure to specify WDON and WDOFF as at least one cycle of BCLK.
External Bus Timing/Page Write Cycle (Bus Clock Synchronization)
R01DS0261EJ0110 Rev.1.10
Oct 30, 2015
Page 124 of 177