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USB2514I-HZH

Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller

SMSC -> Microchip 

SYMBOL

RBIAS

SDA/

SMBDATA/

NON_REM1

SCL/

SMBCLK/

CFG_SEL0

HS_IND/

CFG_SEL1

Industrial Temperature Rated USB 2.0 High-Speed 4-Port Hub Controller

Datasheet

Table 3.1 USB2514 Pin Descriptions (continued)

BUFFER

36 QFN 48 QFN

TYPE

DESCRIPTION

35

47

I-R

USB Transceiver Bias

A 12.0kΩ (+/- 1%) resistor is attached from ground to

this pin to set the transceiver’s internal bias settings.

SERIAL PORT INTERFACE

22

29

I/OSD12 Serial Data / SMB Data & Port Non Removable Strap

Option

NON_REM1: Non removable port strap option.

If this strap is enabled by package and configuration

settings (see Table 3.2), this pin will be sampled (in

conjunction with LOCAL_PWR/SUSP_IND/NON_REM0)

at RESET_N negation to determine if imports [4:1]

contain permanently attached (non-removable) devices:

NON_REM[1:0] = ‘00’, All ports are removable,

NON_REM[1:0] = ‘01’, Port 1 is nonremovable,

NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable,

NON_REM[1:0] = ‘11’, Ports 1, 2 & 3 are non-removable

24

31

I/OSD12 Serial Clock (SCL)

SMBus Clock (SMBCLK)

Configuration Select_SEL0: The logic state of this

multifunction pin is internally latched on the rising edge

of RESET_N (RESET_N negation), and will determine

the hub configuration method as described in Table 3.2,

"SMBus or EEPROM Interface Behavior".

25

32

I/O12 High-Speed Upstream port indictor & Configuration

Programming Select

HS_IND: High Speed Indicator for upstream port

connection speed.

The active state of the LED will be determined as

follows:

CFG_SEL1 = ‘0’,

HS_IND is active high,

CFG_SEL1 = ‘1’,

HS_IND is active low,

‘Asserted’ = Hub is connected at HS

‘Negated’ = Hub is connected at FS

CFG_SEL1: The logic state of this pin is internally

latched on the rising edge of RESET_N (RESET_N

negation), and will determine the hub configuration

method as described in Table 3.2, "SMBus or EEPROM

Interface Behavior".

Revision 1.98 (11-19-07)

12

DATASHEET

SMSC USB2514i

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