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CL-PD6833-QC-A

PCI-to-CardBus Host Adapter

Cirrus Logic 

CL-PD6833

PCI-to-CardBus Host Adapter

Table 2-2. Socket Interface Pins (cont.)

Pin Name1

Description2

Pin Number

Qty. I/O Pwr. Drive

Socket A Socket B

BVD1/

-STSCHG/

-RI /

CSTSCHG

Battery Voltag e Detect 1 / Status

Change / Ring Indicate: In Memory Card

Interface mode, this input serves as the

BVD1 (battery-dead status) input. In I/O

Card Interface mode, this input is the

-STSCHG input, which indicates to the

CL-PD6833 that the card’s internal status

has changed. If bit 7 of the Interrupt and

General Control register is set to ‘1’, this

118

pin serves as the ring indicate input for

wakeup-on-ring system power manage-

ment support.

In CardBus mode, this pin is the CardBus

Status Change used by the card to alert

the system to changes in READY, WP, and

BVD[2:1].

192

1 I-PU 2 or 3 –

VS2/

CVS2

Voltage Sense 2: This pin is used in

conjunction with VS1 to determine the

operating voltage of the card. This pin is

internally pulled high to the voltage of the

+5V power pin under the combined control

of the external data write bits and the CD

pull-up control bits. This pin connects to

104

PC Card 16 socket pin 57.

In CardBus mode, this is CardBus Voltage

Sense 2. It is used in conjunction with

CVS1, CCD1, and CCD2 to determine the

initial voltage applied to the CardBus PC

Card.

179

1

I/O

1

2 mA

VS1/

CVS1

Voltage Sense 1: This pin is used in con-

junction with VS2 to determine the operat-

ing voltage of the card. This pin is inter-

nally pulled high to the voltage of the +5V

power pin under the combined control of

the external data write bits and the CD

pull-up control bits. This pin connects to

76

PC Card 16 socket pin 43.

152

1

I/O

1

2 mA

In CardBus mode, this is CardBus Voltage

Sense 1. It is used in conjunction with

CVS2, CCD1, and CCD2 to determine the

initial voltage applied to the CardBus PC

Card.

1 To differentiate the sockets in the pin diagram, all socket-specific pins have either A_ or B_ prepended to the pin names indi-

cated. For example, A_A[25:0] and B_A[25:0] are the independent address buses to the sockets.

2 When a socket is configured as an ATA drive interface, socket interface pin functions change. See Chapter 14.

20

PIN INFORMATION

ADVANCE DATA BOOK v0.3

June 1998

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