SM8578BV
(2) Periodic mode (TI/TP = “1”)
I If TIE = “1” when the interrupt occurs, output INTN goes LOW.
I If TIE = “0” when the interrupt occurs, output INTN stays high impedance and the TF bit is set to “1”,
and this condition is maintained.
TIE bit
INTN output
TF bit
"1"
"0"
tRTN
Hi−Z
Auto-return
LOW−level
"1"
"0"
Data 0 written to TF
Timer interrupt
timing
* Auto-return: The auto-return time (tRTN) is determined by the source clock set by register C.
Source clock
4096Hz
64Hz
1Hz
1/60Hz
Auto-return time (tRTN)
0.122ms
7.81ms
0.5s
0.122ms
NIPPON PRECISION CIRCUITS INC.—12