USB2503A-HZH View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
MFG CO.
'USB2503A-HZH' PDF : 43 Pages View PDF
5.2.1.3
I2C EEPROM Slave Address
Slave address is 1010000.
Integrated USB 2.0 Compatible 3-Port Hub
Datasheet
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
2503
2503
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
Hub Controller
E
Max Current
Bus-Powered
Power-On
F
Time
2
0000
1
98
1
90
1
00
1
00
1
00
1
01
1
64
1
01
1
64
1
32
0000
1C
90
00
00
00
01
64
01
64
32
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).
Max Current (expressed in 2mA units).
Time until power is stable.
Revision 2.3 (08-27-07)
18
DATASHEET
SMSC USB2503/USB2503A
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