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USB2504 数据表(PDF) 16 Page - Microchip Technology

部件名 USB2504
功能描述  Integrated USB 2.0 Compatible 4-Port Hub
PDF  42 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

USB2504 数据表(HTML) 16 Page - Microchip Technology

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USB2504/USB2504A
DS000002250A-page 16
 2007 - 2016 Microchip Technology Inc.
5.2.3.1
EEPROM Offset 1:0(h) - Vendor ID
5.2.3.2
EEPROM Offset 3:2(h) - Product ID
5.2.3.3
EEPROM Offset 5:4(h) - Device ID
5.2.3.4
EEPROM Offset 6(h) - CONFIG_BYTE_1
Hub Controller
Max Current
Self-Powered
D
1
01
01
Max Current (expressed in 2mA units).
Hub Controller
Max Current
Bus-Powered
E
1
64
64
Max Current (expressed in 2mA units).
Power-On
Time
F
1
32
32
Time until power is stable.
Bit Number
Bit Name
Description
15:8
VID_MSB
Most Significant Byte of the Vendor ID.
7:0
VID_LSB
Least Significant Byte of the Vendor ID.
Bit Number
Bit Name
Description
15:8
PID_MSB
Most Significant Byte of the Product ID.
7:0
PID_LSB
Least Significant Byte of the Product ID.
Bit Number
Bit Name
Description
15:8
DID_MSB
Most Significant Byte of the Device ID.
7:0
DID_LSB
Least Significant Byte of the Device ID.
Bit Number
Bit Name
Description
7
SELF_BUS_PWR
Self or Bus Power: Selects between Self- and Bus-Powered operation.
0 = Bus-Powered operation. (BUS Default)
1 = Self-Powered operation. (SELF Default)
Note:
If Dynamic Power Switching is enabled, this bit is ignored and the
SELF_PWR pin is used to determine if the hub is operating from self
or bus power.
6
PORT_IND
Port Indicator Support: Indicates implementation of LED indicators
0 = No LED indicators.
1 = LED indicators.
5
HS_DISABLE
High Speed Disable: Disables the capability to attach as either a High/Full-
speed device, and forces attachment as Full-speed only i.e. (no High-Speed
support).
0 = High-/Full-Speed. (Default)
1 = Full-Speed-Only (High-Speed disabled!)
TABLE 5-1:
USER-DEFINED DESCRIPTOR DATA (CONTINUED)
Field
Byte
MSB:
LSB
Size
(Bytes)
Default
CFG
Self
(Hex)
Default
CFG
Bus
(Hex)
Description



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