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CL-PD6833

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

A[7:0]/

CAD[26:20, 18]

PC Card 16 socket address 7:0 outputs.

In CardBus mode, these pins are the

CardBus address/data bits 18 and 20–26,

respectively.

100, 103,

105, 107,

109, 111,

113, 116

175, 178,

181, 183,

185, 187,

189, 191

8

Card-

I/O 2 or 3 Bus

spec.

D15/

CAD8

PC Card 16 socket data I/O bit 15.

In CardBus mode, this pin is the CardBus

71

address/data bit 8.

Card-

148

1

I/O 2 or 3 Bus

spec.

D14/

RFU

PC Card 16 socket data I/O bit 14.

In CardBus mode, this pin is reserved for

69

future use.

Card-

145

1

I/O 2 or 3 Bus

spec.

D[13:3]/

CAD[6, 4, 2, 31,

30, 28, 7, 5, 3, 1,

0]

PC Card 16 socket data I/O bits 13:3.

In CardBus mode, these pins are the

CardBus address/data bits 6, 4, 2, 31, 30,

28, 7, 5, 3, 1, and 0, respectively.

67, 65, 63,

124, 122,

120, 68,

66, 64, 62,

59

142, 140,

138, 199,

197, 195,

144, 141,

139, 137,

135

11

Card-

I/O 2 or 3 Bus

spec.

D2/

RFU

PC Card 16 socket data I/O bit 2.

In CardBus mode, this pin is reserved for

123

future use.

Card-

198

1

I/O 2 or 3 Bus

spec.

D[1:0]/

CAD[29, 27]

PC Card 16 socket data I/O bits 1:0.

Card-

In CardBus mode, these pins are the 121, 119 196, 194

2

I/O 2 or 3 Bus

CardBus address/data bits 29 and 27,

spec.

respectively.

-OE/

CAD11

Output Enable: This output goes active

(low) to indicate a memory read from the

PC Card 16 socket to the CL-PD6833.

75

In CardBus mode, this pin is the CardBus

address/data bit 11.

Card-

151

1

I/O 2 or 3 Bus

spec.

-WE/

CGNT#

Write Enable: This output goes active

(low) to indicate a memory write from the

CL-PD6833 to the PC Card 16 socket.

89

In CardBus mode, this pin is the CardBus

GNT# signal.

Card-

165

1

O 2 or 3 Bus

spec.

-IORD/

CAD13

I/O Read: This output goes active (low) for

I / O r e a d s f r o m t h e s o ck e t t o t h e

CL-PD6833.

78

In CardBus mode, this pin is the CardBus

address/data bit 13.

Card-

154

1 O-TS 2 or 3 Bus

spec.

-IOWR/

CAD15

I/O Write: This output goes active (low) for

I/O writes from the CL-PD6833 to the

socket.

81

In CardBus mode, this pin is the CardBus

address/data bit 15.

Card-

156

1

I/O 2 or 3 Bus

spec.

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.

June 1998

ADVANCE DATA BOOK v0.3

17

PIN INFORMATION

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