USB2514-AEZG SMSC, USB2514-AEZG Datasheet - Page 33

• Manufacturer Part Number: USB2514-AEZG
• Description: IC USB 2.0 4PORT HUB CTLR 36-QFN
• Manufacturer: SMSC
• Type: USB HUB Controllerr

Specifications of USB2514-AEZG

• Controller Type: USB 2.0 Controller
• Interface: Serial EEPROM
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 36-QFN
• Operating Supply Voltage: 1.8 V / 3.3 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Supply Current: 155 mA
• For Use With: EVB-USB2514GFN48 - BOARD EVAL FOR USB2514 48-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 638-1054-2

USB 2.0 Hi-Speed Hub Controller
Datasheet
Chapter 8 Configuration Options
SMSC USB251x
8.1
8.1.1
8.1.2
CFG_SEL[2]
0
0
0
0
SMSC’s USB 2.0 hub is fully specification compliant to the Universal Serial Bus specification, version
2.0, April 27, 2000 (12/7/2000 and 5/28/2002 Errata). Please reference Chapter 10 (Hub specification)
for general details regarding hub operation and functionality.
The hub provides 1 Transaction Translator (TT) that is shared by both downstream ports (defined as
Single-TT configuration), The TT contains 4 non-periodic buffers.
Hub Configuration Options
The SMSC hub supports a large number of features (some are mutually exclusive), and must be
configured in order to correctly function when attached to a USB host controller. There are three
principal ways to configure the hub: SMBus, EEPROM, or by internal default settings (with or without
configuration option over-rides). In all cases, the configuration method will be determined by the
CFG_SEL[2], CFG_SEL[1] and CFG_SEL[0] pins immediately after RESET_N negation. Please refer
to
SMBus or EEPROM Interface
Hub
Table 8.1, "Hub Configuration Options"
CFG_SEL[1]
0
0
1
1
CFG_SEL[0]
Table 8.1 Hub Configuration Options
0
1
0
1
DATASHEET
Internal Default Configuration without any over-rides
Configured as an SMBus slave for external download of
user-defined descriptors
Internal Default Configuration
2-Wire I
for more information.
Strap options enabled
Self-powered operation enabled
LED mode = Speed (when available on package)
Individual power switching
Individual over-current sensing
Strap options disabled
All settings are controlled by registers as set by the user
Strap options enabled
Bus-powered operation
LED mode = USB (when available on package)
Individual power switching
Individual over-current sensing
Strap options disabled
All settings are controlled by registers as set by the user
33
2
C EEPROMS are supported
DESCRIPTION
Revision 1.1 (04-26-10)