HD404629R Datasheet, PDF (39/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

Active mode
Watch mode
HD404629R Series
Oscillation
stabilization period
Active mode
Interrupt strobe
INT₀
Interrupt request
generation
(During the transition
from watch mode to
active mode only)
T
T
t_RC
T_X
T: Interrupt frame period
t_RC : Oscillation stabilization period
Note: If the time from the fall of the INT₀ signal until the interrrupt is accepted
and active mode is entered is designated Tx, then Tx will be in the
following range:
T + t_RC ≤ T_x ≤ 2T + t_RC
Figure 17 Interrupt Frame
37