|CZ(4)||Device Drivers Manual||CZ(4)|
cz — Cyclades-Z
series multi-port serial adapter device
cz* at pci?
cz device driver supports the
Cyclades-Z series of multi-port serial adapters. The Cyclades-Z is an
intelligent serial controller comprising:
The MIPS CPU runs firmware provided by the device driver. Communication with the MIPS is performed by modifying data structures located in board local RAM or host RAM.
The Cyclades-Z comes in three basic flavors:
The Cyclades-Z has several features to improve performance under high serial I/O load:
cz driver first appeared in
cz driver does not currently implement
communication via host RAM. While this may improve performance by reducing
the number of PCI memory space read/write cycles, it is not straightforward
to implement with the current
Interrupt mode has not been tested.
There is no support for reading or writing the EEPROM connected to the PLX PCI bus controller.
|March 16, 2018||OpenBSD-6.7|