OPB TimeBase/WatchDog Timer (WDT)
Bundled With:
EDK
Product Type:
Core
Program:
LogiCORE
Documentation
Device Family Support
- Virtex-4 FX
- Virtex-4 LX
- Virtex-4 SX
- Virtex-II Pro
- Virtex-II
- Virtex-E
- Virtex
- Spartan-3A
- Spartan-3
- Spartan-IIE
The TBWDT (TimeBase WatchDog Timer) is a 32-bit peripheral that attaches to the OPB (On-Chip Peripheral Bus). It consists of a free running 32-bit timebase counter that is used for both general purpose and the watch dog facility. The WDT timeout interval is determined by which bit in the timebase is used as input to the WDT state. This IP core is one of more than 20 IP cores that are part of the Embedded Development Kit.
Key Features
- OPB v2.0 bus interface with byte-enable support
- One 32-bit free-running timebase counter with rollover interrupt is also available
- Supports 8-, 16-, and 32-bit bus interfaces