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PD6710 Datasheet(PDF) 75 Page - Intel Corporation |
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PD6710 Datasheet(HTML) 75 Page - Intel Corporation |
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75 / 138 page  ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22 Datasheet 75 Bits 4:1 — PD67XX Revision Level This field identifies the revision of the controller. The initial value is ‘111’. Bit 5 — Dual/Single Socket* This bit specifies the number of sockets supported by the PD67XX. Bits 7:6 — PC Card Controller Identification This field identifies a PC Card controller device. After chip reset or doing an I/O write to this register, the first read of this register will return ‘11’. On the next read, this field will be ‘00’. This pattern of toggling data on subsequent reads can be used by software to determine presence of a PC Card controller in a system or to determine occurrence of a device reset. 10.5 ATA Control Bit 0 — ATA Mode This bit reconfigures the particular socket as an ATA drive interface. Refer to Table 17 on page 88 for PC Card socket pin definitions in ATA mode. 0 Chip identified as a single-socket controller. 1 Chip identified as a dual-socket controller. 00 Second read after I/O write to this register. 11 First read after I/O write to this register. Register Name: ATA Control Index: 26h Register Per: socket Register Compatibility Type: ext. Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 A25/CSEL A24/M/S* A23/VU A22 A21 Scratchpad Bit Speaker Is LED Input ATA Mode RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 RW:0 0 Normal operation. 1 Configures the socket interface to handle ATA-type disk drives. |
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