USB2230 SMSC Corporation, USB2230 Datasheet - Page 14

• Manufacturer Part Number: USB2230
• Description: (USB2229 / USB2230) 5th Generation Hi-Speed USB Flash Media and IrDA Controller
• Manufacturer: SMSC Corporation

Revision 1.3 (02-13-06)
Command Strobe
Card Detection2
Card Detection1
Hardware Reset
IO Write Strobe
Address Strobe
Write Protect
Read Enable
IO Read
Data7-0
NAME
SM
SM
SM
SM
SM
CF
CF
CF
CF
CF
CF_nRESET
SM_D[7:0]
CF_nCD2
CF_nCD1
CF_nIOW
SYMBOL
CF_nIOR
SM_nWP
SM_ALE
SM_CLE
SM_nRE
Table 6.1 USB2229/USB2230 Pin Descriptions
5th Generation Hi-Speed USB Flash Media and IrDA Controller with Integrated Card Power FETs
SmartMedia INTERFACE
BUFFER
I/O8PD
O8PD
O8PD
TYPE
O8PD
08PU
IPU
IPU
O8
O8
O8
08
DATASHEET
14
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.
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.
This pin is an active low hardware reset signal to CF
device.
This pin is an active low read strobe signal for CF
device.
This pin is an active low write strobe signal for CF
device.
This pin is an active low write protect signal for the SM
device.
This pin has a weak pull-down resistor that is
permanently enabled
This pin is an active high Address Latch Enable signal
for the SM device.
This pin has a weak pull-down resistor that is
permanently enabled
This pin is an active high Command Latch Enable signal
for the SM device.
This pin has a weak pull-down resistor that is
permanently enabled
These pins are the bi-directional data signal SM_D7-
SM_D0.
The bi-directional data signal has an internal weak pull-
down resistor.
This pin is an active low read strobe signal for SM
device.
When using the internal FET, this pin has an internal
weak pull-up resistor that is tied to the output of the
internal Power FET.
If an external FET is used (Internal FET is disabled),
then the internal pull-up is not available (external pull-
ups must be used, and should be connected to the
applicable Card Power Supply).
DESCRIPTION
SMSC USB2229/USB2230
Datasheet