ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22
Table 12. Enabling of Socket Power Controls
Interface Status
Register
(see page 47)
Power Control
Register
-VCC_3
and
-VCC_5
Levels
-CD1 and
-CD2 Both
Active Low
VPP1_PGM and
VPP1_VCC
Levels
PWRGOOD
Level
Bit 4:
Bit 5:
Bit 6: Card Power
On
V
Power Auto- Power
CC
Low
X
0
X
X
X
X
0
0
Inactive high
Inactive high
Inactive low
Inactive low
High
Activated per
Power Control
register,
Activated per
Misc Control 1
register, bit 1
High
High
High
1
1
1
0
1
1
X
1
0
1
bits 1 and 0
Inactive low
No
Yes
Inactive high
Activated per
Power Control
register,
Activated per
Misc Control 1
register, bit 1
bits 1 and 0
Table 13. Enabling of Outputs to Card Socket
Power Control Register
-CD1 and
-CD2 Both
Active Low
PWRGOOD
Level
PD67XX Signal
Outputs to Socket
Bit 4:
Power
Bit 7:
Card Enable
V
CC
Low
High
High
High
High
High
X
X
X
0
0
1
1
X
X
0
1
0
1
High impedance
High impedance
High impedance
Enabled
No
Yes
Yes
Yes
Yes
High impedance
Enabled
Bit Name
Value
Description
Enables V to level described by V 3.3V (see “Bit 4 — VCC Power” on
page 50)
CC
CC
V
Power
1
CC
Auto-Power
Card Enable
1
1
Enables Auto-power mode
Enables socket output drivers
Datasheet
49
INTEL [ INTEL ]
