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CL-PD6722 Datasheet(PDF) 40 Page - Cirrus Logic

Part # CL-PD6722
Description  ISA-TOOPC-CARD HOST ADAPTERS
PDF  128 Pages
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Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CL-PD6722 Datasheet(HTML) 40 Page - Cirrus Logic

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PRELIMINARY DATA SHEET v3.1
CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
40
CHIP CONTROL REGISTERS
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
Bit 3
Bit 2
Bit 1
Bit 0
Card Enable
Compatibility
Bit
Auto-Power
VCC Power
Compatibility Bits
VPP1 Power
RW:0
RW:0
RW:0
RW:0
RW:00
RW:00
Table 6-1.
Enabling of Socket Power Controls
PWR-
GOOD
Level
Power Control
Register
-CD1 and
-CD2 Both
Active
Low
Interface Status
Register
(see page 38)
-VCC_3
and
-VCC_5
Levels
VPP1_PGM
and
VPP1_VCC
Levels
Bit 4:
VCC
Power
Bit 5:
Auto-
Power
Bit 6: Card
Power On
Low
X
X
X
0
Inactive high
Inactive low
High
0
X
X
0
Inactive high
Inactive low
High
1
0
X
1
Activated per
Misc Control 1
register, bit 1
Activated per
Power Control
register,
bits 1 and 0
High
1
1
No
0
Inactive high
Inactive low
High
1
1
Yes
1
Activated per
Misc Control 1
register, bit 1
Activated per
Power Control
register,
bits 1 and 0
Table 6-2.
Enabling of Outputs to Card Socket
PWR-
GOOD
Level
-CD1 and
-CD2 Both
Active Low
Power Control Register
CL-PD67XX Signal
Outputs to Socket
Bit 4:
VCC Power
Bit 7:
Card Enable
Low
X
X
X
High impedance
High
No
X
X
High impedance
High
Yes
0
0
High impedance
High
Yes
0
1
Enabled
High
Yes
1
0
High impedance
High
Yes
1
1
Enabled



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