PD6710 Datasheet, PDF (48/138 Pages) Intel Corporation – ISA-to-PC-Card (PCMCIA) Controllers

PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers
7.3
Bit 4 — Write Protect
0
Card is not write protected.
1
Card is write protected.
This bit indicates the state of the WP/-IOIS16 pin ( Table 2) on the card and has meaning only in
Memory Card Interface mode.
Bit 5 — Ready/Busy*
0
Card is not ready.
1
Card is ready.
This bit indicates the state of the RDY/-IREQ pin ( Table 2) on the card. If the card has been
configured for I/O, then this bit will not be valid.
Bit 6 — Card Power On
0
Power to the card is not on.
1
Power to the card is on.
This status bit indicates whether power to the card is on. Refer to Table 11 on page 42 for details.
Bit 7 — V_PP Valid
0
This status bit indicates a logic high at the -VPP_VALID pin.
1
This status bit indicates a logic low at the -VPP_VALID pin.
This bit indicates the status of the -VPP_VALID pin ( Table 1).
Power Control
Register Name: Power Control
Index: 02h
Bit 7
Bit 6
Bit 5
Card Enable
Compatibility
Bit
Auto-Power
RW:0
RW:0
RW:0
Bit 4
V_CC Power
RW:0
Bit 3
Bit 2
Register Per: socket
Register Compatibility Type: 365
Bit 1
Bit 0
Compatibility Bits
RW:00
V_PP1 Power
RW:00
48
Datasheet