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Chapter 7 Board-control Commands
Page 7 - 4 |
| General Status Block |
General Status Block
General
Status Block
Format
When a
The format of the Status Block returned by most
Address |
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Offset | Offset + 0 | Offset + 1 | Offset + 2 | Offset + 3 |
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00H |
| Command Identifier |
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04H | Reserved | Error | Flags | |
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08H |
| Reserved |
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0CH |
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Table 57: General Status Block
Description of Fields
Note
The Flags byte returned in the Status Block of a
Following is a brief description of each of the fields used to return General Status:
Command Identifier
This value is used to match a Status Block to its Parameter Block.
Flags
This field can be polled to ascertain whether, and in what condition, a command completed. It has this format:
BITS
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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CC | ERR | 0 | 0 | 0 | 0 | 0 | 0 |
Table 58: Bit-meanings of Flags Field
ERR Error Status - Identifies when a command completes with an error.
0 ⇒ No error occurred.
1 ⇒ An error occurred.
CC Command Complete - Indicates whether a command has finished.
0 ⇒ Command not complete.
1 ⇒ Command complete.
Error
When an
21020285 D | User’s Guide |