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Rev. 5.00, 09/03, page 298 of 760
RTCOR value
RTCNT
H'00000000
RTCSR.CKS(2 to 0)
CMF
External bus
CMF flag cleared by start of
refresh cycle
= 000 ≠ 000
RTCNT cleared to 0 when
RTCNT = RTCOR
Auto-refresh cycle
Time
Figure 10.25 Auto-Refresh Operation