CL-PD6710/’22
ISA–to–PC-Card Host Adapters
6.3 Power Control
Register Name: Power Control
Index: 02h
Register Per: socket
Register Compatibility Type: 365
Bit 7
Bit 6
Bit 5
Bit 4
Power
Bit 3
Bit 2
Bit 1
Bit 0
Compatibility
Bit
Card Enable
RW:0
Auto-Power
RW:0
V
Compatibility Bits
V
1 Power
CC
PP
RW:00
RW:0
RW:0
RW:00
Table 6-1. Enabling of Socket Power Controls
Power Control
Interface Status
Register
(see page 38)
Register
-CD1 and
-CD2 Both
Active
-VCC_3
and
VPP1_PGM
PWR-
GOOD
Level
and
-VCC_5
Levels
VPP1_VCC
Levels
Bit 4:
Bit 5:
Auto-
Power
Low
Bit 6: Card
Power On
V
CC
Power
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
No
Yes
Inactive high
Inactive low
Activated per
Power Control
register,
Activated per
Misc Control 1
register, bit 1
bits 1 and 0
Table 6-2. Enabling of Outputs to Card Socket
Power Control Register
PWR-
GOOD
Level
-CD1 and
-CD2 Both
Active Low
CL-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
40
May 1997
CHIP CONTROL REGISTERS
PRELIMINARY DATA SHEET v3.1
CIRRUS [ CIRRUS LOGIC ]
