ELANSC(4) BSD Programmer's Manual (i386) ELANSC(4)
elansc - AMD Elan SC520 System Controller driver
elansc* at pci? dev ? function ?
The elansc driver supports the system controller of the AMD Elan SC520 microcontroller. The SC520 consists of an AMD Am5x86 processor core, in- tegrated PCI host controller, and several standard on-chip devices, such as NS16550-compatible UARTs, real-time clock, and timers. The Elan SC520 also provides several special on-chip devices. The follow- ing are supported by the elansc driver: • Watchdog timer. The watchdog timer may be configured for a 1 second, 2 second, 4 second, 8 second, 16 second, or 32 second expiration period.
Support for the elansc was added in OpenBSD 3.3.
The elansc driver was written by Jason R. Thorpe <email@example.com>. Jasper Wallace provided the work-around for a hardware bug related to the watchdog timer in some steppings of the SC520 CPU. MirOS BSD #10-current August 11, 2002 1
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