360014937 |
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10.8.21 Read Buffer | (E4h) |
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| COMMAND CODE |
| 1 1 1 0 0 1 0 0 | REGISTER | |
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| REGISTER SETTING | NORMAL COMPLETION | ||
| DR |
| drive no. | no change | |
| CY |
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| no change |
| HD |
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| no change |
| SN |
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| no change |
| SC |
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| 00H |
| FT |
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| no change |
This command transfers a specified sector of data ( 512 bytes) from the 128kB buffer in the drive to the host. When this command is issued, the drive sets BSY, sets up the buffer for read operation, sets DRQ, resets BSY, and generates an interrupt. The host reads up to 512 bytes of data from the buffer.
10.8.22 Write Buffer | (E8h) |
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| COMMAND CODE |
| 1 1 1 0 1 0 0 0 | REGISTER | |
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| REGISTER SETTING | NORMAL COMPLETION | ||
| DR |
| drive no. | no change | |
| CY |
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| no change |
| HD |
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| no change |
| SN |
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| no change |
| SC |
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| 00H |
| FT |
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| no change |
This command transfers a sector of data from the host to the specified 512 bytes of 128kB buffer of the drive . When this command is issued, the drive will set up the buffer for write operation, and set DRQ. The host may then write up to 512 bytes of data to the buffer.
Copyright ©2000 Toshiba corporation. All rights reserved.
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