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USB2504 データシート(PDF) 21 Page - SMSC Corporation

部品番号 USB2504
部品情報  Integrated USB 2.0 Compatible 4-Port Hub
PDF  46 Pages
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メーカー  SMSC [SMSC Corporation]
ホームページ  http://www.smsc.com
Logo SMSC - SMSC Corporation

USB2504 データシート(HTML) 21 Page - SMSC Corporation

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Integrated USB 2.0 Compatible 4-Port Hub
Datasheet
SMSC USB2504/USB2504A
21
Revision 2.1 (12-06-06)
DATASHEET
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
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!)
4
MTT_ENABLE
Multi-TT enable: Enables one transaction translator per port operation.
0 = single TT for all ports.
1 = one TT per port (multiple TT’s supported)



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