CHAPTER 5 MEMORY ACCESS CONTROL FUNCTION
User’s Manual U12688EJ4V0UM00
157
(3) Refresh timing
Figure 5-11. CBR Refresh Timing
TRRW
T1
WAIT
D0 to D15
IOWR
IORD
LWR/LCAS
UWR/UCAS
WE
OE
RD
CSn/RASn
BCYST
REFRQ
A0 to A23
CLKOUT
TRCW
Note
TRCW
T3
TI
T2
Optional
Note A minimum of 1 clock cycle is inserted for the TRCW cycle regardless of the RCW0 to RCW2 bit
settings in the RWC register.
Remarks 1. This is the timing in the case where the number of waits (TRCW) according to the bits RCW0 to
RCW2 is 1.
2. n = 0 to 7
Содержание V850E/MS1 UPD703100
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