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RX8111CE
14.4.2. Time update interrupt function diagram
UIE bit
UF clears to Zero.
Carry Sec.
Carry Min.
USEL bit
F64Hz
UIE bit
/INT output
UF bit
Carry
Internal Operation
Write Operation
Figure 24 Time Update Interrupt block diagram
tRTN
period
period
Figure 25 Time Update timing chart
UF
Flag
Update
/tRTN
Control
Circuit
Clearing UIE bit
Clearing UF bit" 0 "
does not change
/INT status.
period
Page − 33
" 0 " makes /INT
"Hi-Z" before tRTN
period.
period
/
I
N
T
" 1 "
" 0 "
Hi - Z
" L "
" 1 "
" 0 "
ETM61E-01
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