USB2660 Standard Microsystems Corp., USB2660 Datasheet - Page 46

• Manufacturer Part Number: USB2660
• Description: Ultra Fast Usb 2.0 Hub And Multi-format Flash Media Controller With Dual Sd Interfaces
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (06-09-09)
8.4.4.13
8.4.4.14
8.4.4.15
8.4.4.16
BIT
BIT
BIT
BIT
7:0
7:0
7:0
7:0
EAh: Max Power For Self-Powered Operation
EBh: Max Power For Bus-Powered Operation
ECh: Hub Controller Max Current For Self-Powered Operation
EDh: Hub Controller Max Current For Bus-Powered Operation
HC_MAX_C_SP
HC_MAX_C_BP
MAX_PWR_SP
MAX_PWR_BP
BYTE NAME
BYTE NAME
BYTE NAME
BYTE NAME
Ultra Fast USB 2.0 Hub and Multi-Format Flash Media Controller with Dual SD Interfaces
Value in 2 mA increments that the hub consumes from an upstream port
(VBUS) when operating as a self-powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value also includes the power
consumption of a permanently attached peripheral if the hub is configured
as a compound device, and the embedded peripheral reports 0 mA in its
descriptors.
Note:
Value in 2 mA increments that the hub consumes from an upstream port
(VBUS) when operating as a bus-powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value also includes the power
consumption of a permanently attached peripheral if the hub is configured
as a compound device, and the embedded peripheral reports 0 mA in its
descriptors.
Value in 2 mA increments that the hub consumes from an upstream port
(VBUS) when operating as a self-powered hub. This value includes the hub
silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value does NOT include the power
consumption of a permanently attached peripheral if the hub is configured
as a compound device.
Note:
A value of 50 (decimal) indicates 100 mA, which is the default value.
Value in 2 mA increments that the hub consumes from an upstream port
(VBUS) when operating as a bus-powered hub. This value will include the
hub silicon along with the combined power consumption (from VBUS) of all
associated circuitry on the board. This value will NOT include the power
consumption of a permanently attached peripheral if the hub is configured
as a compound device.
A value of 50 (decimal) would indicate 100 mA, which is the default value.
The USB 2.0 Specification does not permit this value to exceed 100
mA.
The USB 2.0 Specification does not permit this value to exceed 100
mA.
DATASHEET
46
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
SMSC USB2660/USB2660i
Datasheet