CAM35C44 datasheet(9/50 Pages) SMSC

9 / 50 page

NAME

TOTAL

PINS

SYMBOL

BUFFER

TYPE

DESCRIPTION

Clock Input (24MHz

CMOS Clock/Crystal)

X1/CLK1

ICLK

X1/CLK is the input for either a

24MHz clock crystal or 24MHz

crystal oscillator source (see

section CLOCK GENERATOR on

page 12)

Crystal Driver

OCLK

X2 is the 24MHz crystal driver and

should be left unconnected if an

external clock source is used.

Host Interface Select

HS[1:0]

The Host Interface Select bits

determine the host interface type.

These bits are static controls and

must remain stable during device

operation (see section

MULTIHOST CPU INTERFACE

on page 13).

General Purpose I/O

(GPIO0 - GPIO2)

GPIO[2:0]

IO12

The general purpose I/O pins

provide a simple programmable

I/O interface. The state of a GPIO

pin can be forced to the value

contained in the GPIO data

the logical state of the GPIO pin

depending on values programmed

in GPIO direction and enable

registers (see section GENERAL

PURPOSE I/O on page 32).

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