CL-PD6833 Ver la hoja de datos (PDF) - Cirrus Logic

Número de pieza

componentes Descripción

Lista de partido

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

WP/

-IOIS16/

CCLKRUN#

Write Protect / I/O Is 16-Bit: In Memory

Card Interface mode, this input is inter-

preted as the status of the write protect

switch on the PC Card 16. In I/O Card

Interface mode, this input indicates the

size of the I/O data at the current address

125

on the PC Card 16.

In CardBus mode, this pin is the CardBus

CLKRUN# signal, which starts and stops

the CardBus clock (CCLK).

201

1

I/O-

PU

2 or 3

Card-

Bus

spec.

-INPACK/

CREQ#

I n p u t A ck n ow l e d g e : T h e - I N PAC K

function is not applicable in PCI bus

e nv i r o n m e n t s . T h i s p i n s h o u l d b e

connected to the PC Card socket’s

-INPACK pin, since this can be the DREQ

110

signal during DMA cycles.

In CardBus mode, this pin is the CardBus

REQ# signal.

186

1 I-PU 2 or 3 –

RDY/

-IREQ/

CINT#

Ready / Interrupt Request: In Memory

Card Interface mode, this input indicates

to the CL-PD6833 that the card is either

ready or busy. In I/O Card Interface mode,

this input indicates a card interrupt

91

request.

In CardBus mode, this pin is the CardBus

Interrupt Request signal. This signal is

active-low and level-sensitive.

167

1 I-PU 2 or 3 –

-WAIT/

CSERR#

Wait: This input indicates a request by the

card, to the CL-PD6833, to halt the cycle

in progress until this signal is deactivated.

108

In CardBus mode, this pin is the CardBus

SERR# signal.

184

1 I-PU 2 or 3 –

-CD[2:1]/

CCD[2:1]#

Card Detect: These inputs indicate to the

CL-PD6833 that a card is in the socket.

They are internally pulled high to the volt-

age of the +5V power pin.

126, 61

202, 136

2 I-PU

1

–

In CardBus mode, these inputs are used

in conjunction with CVS[2:1] to detect the

presence and type of 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.

18

PIN INFORMATION

ADVANCE DATA BOOK v0.3

June 1998

Share Link: