4th Generation USB2.0 Flash Media Controller with Integrated Card Power FETs and HS Hub

Datasheet

SMSC USB2601/USB2602

15

Revision 1.3 (05-25-05)

DATASHEET

Over Current Sense

OCS[4:2]_N

IPU

Input from external current monitor indicating an over-

current condition. {Note: Contains internal pull-up to

3.3V supply}

Green LED

GR[4:2]_N

I/O8

Green indicator LED for ports 2, 3 and 4. Will be active

low when LED support is enabled via EEPROM or

SMBus.

CompactFlash (In True IDE mode) INTERFACE

CF Chip Select 1

CF_nCS1

O8PU

This pin is the active low chip select 1 signal for the CF

ATA device

CF Chip Select 0

CF_nCS0

O8PU

This pin is the active low chip select 0 signal for the task

file registers of CF ATA device in the True IDE mode.

CF Register

Address 2

CF_SA2

O8

This pin is the register select address bit 2 for the CF

ATA device.

CF Register

Address 1

CF_SA1

O8

This pin is the register select address bit 1 for the CF

ATA device

CF Register

Address 0

CF_SA0

O8

This pin is the register select address bit 0 for the CF

ATA device.

CF Interrupt

CF_IRQ

IPD

This is the active high interrupt request signal from the

CF device.

CF

Data 15-8

CF_D[15:8]

I/O8PD

The bi-directional data signals CF_D15-CF_D8 in True

IDE mode data transfer.

In the True IDE Mode, all of task file register operation

occur on the CF_D[7:0], while the data transfer is on

CF_D[15:0].

The bi-directional data signal has an internal weak pull-

down resistor.

CF

Data7-0

CF_D[7:0]

I/O8PD

The bi-directional data signals CF_D7-CF_D0 in the

True IDE mode data transfer.

In the True IDE Mode, all of task file register operation

occur on the CF_D[7:0], while the data transfer is on

CF_D[15:0].

The bi-directional data signal has an internal weak pull-

down resistor.

IO Ready

CF_IORDY

IPU

This pin is active high input signal.

This pin has an internally controlled weak pull-up

resistor.

CF

Card Detection2

CF_nCD2

IPU

This card detection pin is connected to the ground on

the CF device, when the CF device is inserted.

This pin has an internally controlled weak pull-up

resistor.

CF

Card Detection1

CF_nCD1

IPU

This card detection pin is connected to ground on the

CF device, when the CF device is inserted.

This pin has an internally controlled weak pull-up

resistor.

CF

Hardware Reset

CF_nRESET

O8

This pin is an active low hardware reset signal to CF

device.

NAME

SYMBOL

BUFFER

TYPE

DESCRIPTION