Watchdog Timer Operation States - Renesas H8 Series Hardware Manual

Section 9 Timers
9.6.4

Watchdog Timer Operation States

Table 9.17(1) and table 9.17(2) summarize the watchdog timer operation states for the H8/38024,
H8/38024S, and H8/38024R Group, and for the H8/38124 Group, respectively.
Table 9.17(1) Watchdog Timer Operation States
(H8/38024, H8/38024S, H8/38024R Group)
Operation
Mode Reset
TCW Reset
TCSRW Reset
Note: * Functions when φw/32 is selected as the input clock.
Table 9.17(2) Watchdog Timer Operation States (H8/38124 Group)
Operation
Mode Reset
TCW Reset
TCSRW Reset
TMW Reset
Notes: 1. Operates when φw/32 or the on-chip oscillator is selected as the internal clock.
2. Operates only when the on-chip oscillator is selected.
Rev. 7.00 Mar 10, 2005 page 310 of 652
REJ09B0042-0700
Active Sleep Watch
Functions Functions Halted
Functions Functions Retained
Active Sleep Watch
Functions Functions Functions/
Halted *
Functions Functions Functions/
Retained *
Functions Functions Functions/
Retained *
Subactive Subsleep Standby
Functions/ Halted
Halted *
Retained
Functions/
Halted *
Subactive Subsleep Standby
Functions/ Functions/
1 Halted * 1 Halted * 1
Functions/ Functions/
1 Halted * 1 Retained *
Functions/ Functions/
1 1
Halted * Retained *
Module
Standby
Halted Halted
Retained Retained
Module
Standby
Halted
Functions/
Halted * 2
Functions/ Retained
1 Retained * 2
Retained
Functions/
1 2
Retained *