EVB-USB2240-IND Standard Microsystems (SMSC), EVB-USB2240-IND Datasheet - Page 3

• Manufacturer Part Number: EVB-USB2240-IND
• Manufacturer: Standard Microsystems (SMSC)

Specifications of EVB-USB2240-IND

• Lead Free Status / Rohs Status: Compliant

EVB-USB2240-IND User Manual Revision B
SMSC EVB-USB2240-IND
2 Hardware Configuration
2.1
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
Hardware Description
The EVB-USB2240-IND has one onboard regulator, which generates +3.3 VDC from an external +5
VDC regulated power supply. The USB2240 generates its own +1.8 VDC for internal use using on-
chip +1.8 VDC regulators. The internal 1.8 Volt regulator to the oscillator and PLL is turned off during
suspend to minimize suspend current. The USB2240 consumes power from the 3.3 Volt supply.
USB2240 Configuration
Default: The EVB-USB2240-IND has been set up to support internal default configuration as
determined by the empty state (no valid signature ID) of the EEPROM immediately after reset. When
no valid EEPROM image is detected, the Vendor ID, Product ID, Language ID, and Device ID, and a
few other choices are set using ROM code defaults.
EEPROM Option: The EVB-USB2240-IND can load configuration from an external two-wire, I
EEPROM U2. The EEPROM must be installed in socket U2. The EEPROM may be pre-programmed
before installation, or it can be programmed with the USB host using the provided SMSC USBDM
application.
This option allows access to all of the configuration registers and ID strings for the USB2240 device
for detailed functional analysis and exercise as desired. The EVB-USB2240-IND is compatible with I
EEPROMs from several manufacturers. The memory capacity must be at least 512 bytes.
Powered State LED
An optional LED, LED1, indicates when +3.3 VDC power is present on the media sockets.
Activity LED
A LED, LED3, indicates when the USB2240 is active, as defined by firmware.
Media Interface
The USB2240 supports a wide array of devices. Media Interface accommodates all of the media types
supported through the use of three media socket connectors. Adapters may be needed for some form
factors.
Since these connectors are all on the same media bus, only one device is allowed to be inserted into
any of these media socket connectors at one time for the Media Interface.
Connector Description
The EVB-USB2240-IND has a standard USB style connector of type B for the upstream port. It also
has a standard set of media storage style connectors, which supports popular flash media formats from
the xD, MS, SD, and MMC families. Power is supplied via a 2.0 mm power jack.
the connectors. For more details on the pinout of the connectors please schematics in
Figure
J1 supports SD media up to the specification limit of 4 bits wide. It also supports MMC media up
to the specification 4.2 of 8 bits wide.
J2 supports xD-Picture Card media.
J3 supports MS, MS Pro, MS Duo, and MS Pro-HG media at up to the specification limit of 8 bits
wide.
2.3.
USER MANUAL
3
Revision 1.0 (07-17-09)
Table 2.1
Figure 2.2
lists all of
and
2
2
C
C