RX62N Datasheet, PDF (11/25 Pages) Renesas Technology Corp – 100 MHz 32-bit RX MCU with FPU, 165 DMIPS, up to 512-Kbyte Flash, Ethernet, USB 2.0

RX62N Group and RX621 Group
16-Bit SDRAM Connection and Access Examples
Single write
SDCLK
SDRAM command ACT WRI DSL PRA
Data bus
d0
RCD: 1 cycle WR: 2 cycles
PR: 1 cycle
RAS: 3 cycles
ACT: Bank active command
WRI: Write command
PRA: All banks precharge command
DSL: Device deselect command
Figure 6 Write Timing
R01AN0585EJ0202 Rev.2.02
Feb 14, 2014
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