Chapter 7 Board-control Commands
Board Information (15H) | Page 7 - 33 |
Options
The Options field is one byte wide with the following format and
BITS
7 | 6 | 5 |
| 4 | 3 | 2 | 1 | 0 |
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| 0 |
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| FMT | 0 | |
Table 90: Board Information Options Field
Board
Information
Data Structure
FMT - This bit determines whether the data returned with the Board Information command will include information about all possible SCSI ID’s
(16)or will retain compatibility with previous adapters that were limited to 8 ID’s on a bus.
0⇒Use 8 ID format.
1⇒ Use 16 ID format.
The format of the Data Structure returned from the Board Information command is illustrated in the follwoing table.
The Data Structure returned by the Board Information command has two parts. The first part of the structure consists of a special header primarily containing General Board Information (including hardware configuration).
The second part of the returned structure consists of eight or sixteen blocks of data (dependent on the setting of the FMT bit in the Options field of the Board Information command). These blocks describe the Unit Options that are set for each target attached to the RF3880. The first block corresponds to SCSI ID 0, the second to SCSI ID 1, etc.
Address |
| Byte Memory Address |
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Offset | Offset + 0 | Offset + 1 | Offset + 2 | Offset + 3 |
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00H | FW Rev. | Eng. Rev. | Bus Throttle | Select Flags |
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| General Board | |
04H | Option Flags | Day | Month | Year | ||
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| Information | |
08H |
| Firmware Number on Even Prom |
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| Header | ||||
0CH | Adapter Base Model # | SCSI Cfig Block | Termination |
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10H |
| Reserved |
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14H | Sense Count | Retry Limit | Disconnect |
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18H | Synch Offset | Synch Period | Device Flags |
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1CH | Width |
| Reserved |
| Per Target | |
20H | Sense Byte # | Sense Byte # | Sense Byte # | Sense Byte # | ||
Information | ||||||
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24H | Sense Byte # | Sense Byte # | Sense Byte # | Sense Byte # |
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28H | Sense Byte # | Sense Byte # | Sense Byte # | Sense Byte # |
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2CH | Sense Byte # | Sense Byte # | Sense Byte # | Sense Byte # |
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thru | Target information repeated up to fifteen more times — |
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1D0H | depending on setting of Options field (in command). |
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Table 91: Board Information Data Structure
Each of the fields of this Data Structure are described above and on the following pages.
User’s Guide | 21020285 D |
