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PD6710 Datasheet, PDF (76/138 Pages) Intel Corporation – ISA-to-PC-Card (PCMCIA) Controllers | |||
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PD6710/â22 â ISA-to-PC-Card (PCMCIA) Controllers
Bit 1 â Speaker Is LED Input
0
Normal operation.
1
The PC Card -SPKR pin will be used to drive IRQ12 if Drive LED Enable (see âBit 4 â Drive
LED Enableâ on page 73) is set.
This bit changes the function of the BVD2/-SPKR/-LED pin (see Table 2 on page 20) from digital
speaker input to disk status LED input. When in I/O Card Interface mode or ATA mode, setting this
bit to â1â reconfigures the BVD2/-SPKR/-LED input pin to serve as a -LED input from the socket.
Note: This bit should be set to â0â if in Memory Card Interface mode.
Bit 3 â A21
In ATA mode, the value in this bit is applied to the ATA A21 pin and is vendor-specific. Certain
ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be
controlled through use of this bit. This bit has no hardware control function when not in ATA mode.
Bit 4 â A22
In ATA mode, the value in this bit is applied to the ATA A22 pin and is vendor-specific. Certain
ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be
controlled through use of this bit. This bit has no hardware control function when not in ATA mode.
Bit 5 â A23/VU
In ATA mode, the value in this bit is applied to the ATA A23 pin and is vendor-specific. Certain
ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be
controlled through use of this bit. This bit has no hardware control function when not in ATA mode.
Bit 6 â A24/M/S*
In ATA mode, the value in this bit is applied to the ATA A24 pin and is vendor-specific. Certain
ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be
controlled through use of this bit. This bit has no hardware control function when not in ATA mode.
Bit 7 â A25/CSEL
In ATA mode, the value in this bit is applied to the ATA A25 pin and is vendor-specific. Certain
ATA drive vendor-specific performance enhancements beyond the PC Card Standard may be
controlled through use of this bit. This bit has no hardware control function when not in ATA mode.
76
Datasheet
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