Specifications

Fabric OS Commands
596 Fabric OS Version 3.1.x/4.1.x Reference Guide
Bit write/read test of the ASIC SRAMs and registers.
Synopsis: V3.1.x
portRegTest
Synopsis: V4.1.x
portRegTest [--slot number][-ports itemlist]
[-skiptests mask][-verbose mode]
Availability
Admin
Release
V3.1.x and V4.1.x
Description
Use this command to verify that SRAM and register data bits in each ASIC can be
independently written and read.
The method used is to write a walking pattern to each location. The command
writes 0x00000001 to register N, then reads the data, and compares it to make sure
that the same pattern previously written is read back. Then the command shifts the
pattern leftward by 1 bit (to 0x00000002), repeats the write, read and compare
cycle. This continues until the last writable bit in register N is reached
(0x80000000 for a 32-bit register).
For example, a 6-bit register is effectively tested with the following pattern for
V3.1.x:
1. 0x0001
2. 0x0002
3. 0x0004
4. 0x0008
5. 0x0010
portRegTest