USB2507 Ver la hoja de datos (PDF) - SMSC -> Microchip
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USB2507 Datasheet PDF : 44 Pages
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Integrated USB 2.0 Compatible 7-Port Hub
Datasheet
5.2.1.1
Implementation Characteristics
Please refer to the MicroChip 24AA00 DataSheet for Protocol and Programming specifics.
5.2.1.2
Pull-Up Resistor
The Circuit board designer is required to place external pull-up resistors (10KΩ recommended) on the
SDA/SMBDATA & SCL/SMBCLK/CFG_SELO lines (per SMBus 1.0 Specification, and EEPROM
manufacturer guidelines) to Vcc in order to assure proper operation.
5.2.1.3
I2C EEPROM Slave Address
Slave address is 1010000.
Note: 10-bit addressing is NOT supported.
5.2.2 In-Circuit EEPROM Programming
The EEPROM can be programmed via ATE by pulling RESET_N low (which tri-states the Hub’s
EEPROM interface and allows an external source to program the EEPROM).
5.2.3 EEPROM DATA
Table 5.1 User-Defined Descriptor Data
FIELD
VID
PID
BYTE
MSB:
LSB
SIZE
(BYTES)
DEFAULT
CFG
SELF
(HEX)
DEFAULT
CFG
BUS
(HEX)
DESCRIPTION
1:0
2
0424
0424
Vendor ID (assigned by USB-IF).
3:2
2
2507
2507
Product ID (assigned by Manufacturer).
DID
5:4
Config Data
6
Byte 1
Config Data
7
Byte 2
Non
8
Removable
Device
Port Disable
9
Self-Powered
Port Disable
A
Bus-Powered
Max Power
B
Self-Powered
Max Power
C
Bus-Powered
Hub Controller
D
Max Current
Self-Powered
2
0000
1
98
1
10
1
00
1
00
1
00
1
01
1
64
1
01
0000
1C
90
00
00
00
01
64
01
Device ID (assigned by Manufacturer).
Configuration data byte #1 for Hub options.
Configuration data byte #2 for Hub options.
Defines the ports that contain attached
devices (this is used only when Hub is part of
a compound device).
Selects the ports that will be permanently
disabled
Selects the ports that will be permanently
disabled
Max Current for this configuration (expressed
in 2mA units).
Max Current for this configuration (expressed
in 2mA units).
Max Current (expressed in 2mA units).
SMSC USB2507
19
DATASHEET
Revision 2.3 (08-27-07)
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