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10.13 Master/Slave Configuration
Drive address shall be set by the optional jumper of interface connector.
The drive runs as Master drive when the jumper is open or if jumper plug is set to position B-D when P28(CSEL) signal is low. The drive runs as Slave drive when the jumper plug is inserted into position C-D or if jumper plug is set to position B-D when P28 (CSEL) signal is high. In case of two- drive configuration, one shall be Master and the other should be Slave.
ATA /ATAPI specifies to use P28 with jumper plug set to position B-D. It is recommended to follow the ATA / ATAPI specification.
Jumper | P28 | Drive |
No Jumper | - | Master Drive |
C-D Jumper | - | Slave Drive |
B-D Jumper | LOW | Master Drive |
B-D Jumper | HIGH | Slave Drive |
Prohibit A-B Jumper | - | - |
Prohibit A-C Jumper | - | - |
Polarity key
Figure 6 Optional jumper for Master/Slave
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