Hitachi H8S/2633 Hardware Manual page 583

Block Diagram

Figure 15-1 (a) and 15-1 (b) show a block diagram of the WDT.

(interrupt request

Internal reset signal *

: Timer control/status register

: Timer counter

: Reset control/status register

The type of internal reset signal depends on a register setting.

There are two alternative types of reset, namely power-on reset and manual reset.

Figure 15-1 (a) Block Diagram of WDT0

Internal clock