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Copyright (C) 2011-2012 Reserved by Cypress Semiconductor Corporation
GX3 EEPROM Programming User Guide
Note 4:
Max Power Settings
The unit of EEPROM “Max. Power” fields is 8mA at super-speed mode and is 4mA at high-
speed mode.
The low byte of EEPROM offset 07h (for bus-powered) field and high byte of GX3
EEPROM offset 07h (for self-powered) field are used to configure the “bMaxPower” field of
Standard Configuration Descriptor that will be reported to the USB host controller when the
GET_DESCRIPTOR command with CONFIGURATION type is issued. These fields are
used to define the Maximum power consumption of the USB device drawn from the USB bus
in this specific configuration when the device is fully operational.