T1 Compatibility Options
The version of the hsip_init utility shipped with the SunHSI software has options that enable you to invert data and clock signals to accommodate the requirements of T1 or CEPT transmission equipment. The hsip_init parameters that allow for inversion are:
■txd – transmit data signal
■rxd – receive data signal
■txc – transmit clock signal
■rxc – receive clock signal
The effect of the default settings for all of these parameters is that SunHSI software does not invert the data or clock signal controlled by the parameter. To invert a signal, you specify a setting of the form
As an example, suppose you want to invert the transmit and receive data signals on the first SunHSI/U port (port 0) on the second SunHSI/U adapter in your system. To do so, enter the following command:
#hsip_init hihp4
To invert both clock and data signals, enter:
#hsip_init hihp4
Appendix C discusses the background and requirements for these inverted settings.
Operating Modes Options
This section describes the operating modes that you can set with the hsip_init utility.
The SunHSI software operates in two main operating modes, the
18 Sun PCI High Speed Quad Port Serial Interface Adapter User’s Guide • December 2005
