Vax 613 0S Instruction Manual Page 219

  • Download
  • Add to my manuals
  • Print
  • Page
    / 344
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 218
Table 50 Kernel-Resident Device Configuration Table Components
Component Address Length Description
Major version ID DCT 4 Bytes Tracks major changes in the device’s
diagnostic routines.
Minor version ID DCT + 04
16
4 Bytes Tracks minor changes in the device’s
diagnostic routines.
Number of
directories
DCT+08
16
4 Bytes Gives the number of directory entries
for this device. A directory entry lists
the location of a particular component of
code for this device.
Device ID DCT +
0C
16
4 Bytes Device ID. This value is also saved in
the MCT.
Device name DCT + 10
16
8 Bytes Null-terminated string holding
the device name. The SHOW
CONFIGURATION utility and the
system test read this entry to display
information about this device. The
device name is limited to 7 characters
(plus the null terminator).
TURBOchannel slot
number
DCT+18
16
4 Bytes The TURBOchannel slot number where
this device resides.
Self-test error
information
DCT +
1C
16
8 Bytes The self-test status consists of two fields:
Field Contents
Error data The error code
associated with the
self-test error.
FRU status The number of the field
replaceable unit thought
to be defective.
The associated error codes are device-
dependent. Refer to individual device
specifications for descriptions of the
device’s error data and FRU status
codes.
Pointer to extended
device status
DCT+24
16
4 Bytes Pointer to any extended information
that is saved by the device’s self-test.
Save the extended device status as a
null-terminated string.
Pointer to extended
configuration data
DCT+28
16
4 Bytes A pointer to extended configuration
information about the device. For
example, the SCSI self-test code saves a
pointer to information about the devices
connected to the SCSI bus in this field.
The information appears when the user
enters the SHOW CONFIGURATION
command. Save the extended device
status as a null-terminated string.
(continued on next page)
Configuration 15–5
Page view 218
1 2 ... 214 215 216 217 218 219 220 221 222 223 224 ... 343 344

Comments to this Manuals

No comments