RUNWAY(4) | Device Drivers Manual (hppa) | RUNWAY(4)

# NAME

`runway` — Runway bus

# SYNOPSIS

`uturn* at mainbus?`

# DESCRIPTION

The `runway` bus is a CPU and memory bus on systems based on the PA-7200, PA-8000, and later CPUs. The `runway` bus is a 64-bit multiplexed address/data bus with support for cache coherency and allows up to 4-way SMP system configurations.

One or two uturn(4) bridges connect the `runway` bus to the system's gsc(4) or pci(4) buses.

# SEE ALSO

cpu(4), dino(4), gsc(4), intro(4), pci(4), uturn(4)

# HISTORY

The `runway` driver first appeared in OpenBSD 3.7.

May 31, 2007 | Debian