EVB-USB4640 SMSC, EVB-USB4640 Datasheet - Page 45

• Manufacturer Part Number: EVB-USB4640
• Description: EVALUATION BOARD FOR USB4640
• Manufacturer: SMSC

Specifications of EVB-USB4640

• Main Purpose: Interface, USB 2.0 Hub
• Embedded: *
• Utilized Ic / Part: USB4640
• Primary Attributes: *
• Secondary Attributes: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1107

High Speed Inter-Chip (HSIC) USB 2.0 Hub and Flash Media Controller
Datasheet
SMSC USB4640/USB4640i
8.4.4.14
8.4.4.15
8.4.4.16
8.4.4.17
BIT
BIT
BIT
BIT
7:0
7:0
7:0
7:0
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
EEh: Power-On Time
HC_MAX_C_SP
HC_MAX_C_BP
PWR_ON_TIME
MAX_PWR_BP
BYTE NAME
BYTE NAME
BYTE NAME
BYTE NAME
The length of time that it takes (in 2 ms intervals) from the time the host
Value in 2 mA increments that the hub consumes when operating as a bus-
powered hub. This value includes the hub silicon along with the combined
power consumption 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 when operating as a self-
powered hub. This value includes the hub silicon along with the combined
power consumption 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 when operating as a bus-
powered hub. This value will include the hub silicon along with the combined
power consumption 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.
initiated power-on sequence begins on a port until power is adequate on that
port. If the host requests the power-on time, the system software uses this
value to determine how long to wait before accessing a powered-on port.
The USB 2.0 Specification does not permit this value to exceed 100
mA.
DATASHEET
45
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
Revision 1.0 (06-09-09)