ml670100 Oki Semiconductor, ml670100 Datasheet - Page 82

• Manufacturer Part Number: ml670100
• Description: Ml670100 Is A High-performance 32-bit Microcontroller
• Manufacturer: Oki Semiconductor

6.1
6.1.1
6-2
The main components of the Time Base Generator (TBG) are the Time Base Counter (TBC), a
frequency divider which derives the time base clock signals for the on-chip peripherals from the
system clock (SYSCLK) signal, and the Watchdog Timer (WDT), which counts time base
clock cycles and produces a system reset signal (WDTOV) when its internal counter overflows.
The Time Base Counter (TBC) starts at 0 after a system reset and continues counting as long as
it receives the system clock (SYSCLK) signal.
The Watchdog Timer (WDT) starts off inoperative after a system reset.
Figure 6.1 gives a block diagram for the Time Base Generator (TBG), which includes the
following components:
Overview
Block Diagram
- Time Base Counter (TBC), a frequency divider which derives the time base clock signals
- Watchdog Timer (WDT), which counts time base clock cycles and prevents runaway
- Time Base Generator Control Register (TBGCON), which controls Time Base Generator
- Watchdog Timer Control Register (WDTCON), which the program uses to start and
from the system clock (SYSCLK) signal
operation
(TBG) operation
periodically reset the Watchdog Timer (WDT)