spd6722qcce Intel Corporation, spd6722qcce Datasheet - Page 48

• Manufacturer Part Number: spd6722qcce
• Description: Isa-to-pc-card Pcmcia Controllers
• Manufacturer: Intel Corporation

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