SMSC USB2601 - Manual (Page 15)

4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs & HS Hub
Datasheet
SMSC USB2601/USB2602 15 Revision 1.6 (06-20-08)
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 Data [7:0] 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