SMSC USB3750 Скачать руководство пользователя страница 3

USB375x EVB - Evaluation Board User Manual

SMSC USB375x EVB

3

Revision 1.1 (08-29-11)

USER MANUAL

 

The SCL, SDA and INT_B pins are also exposed on the 

J6

 header. These pins are compatible with

the Aardvark pinout, where pin 1 of the Aardvark connector connects to pin 1 of the header or SCL.

2.3

  Vcc I

2

C Regulator

The USB375x EVB contains circuitry to pull up the I

2

C pins to a specified Vcc voltage. The Vcc voltage

can be adjusted by choosing the proper 

R21

 resistance. 

R10, R11 

and 

R12

 are used to pull the I

2

C

pins up to Vcc. The current value of the I

2

C pullups are10k , but a smaller value may need to be

selected for 1MHz operation. The current Aardvark speed is at a very slow clock speed.

Figure 2.2 Test points, LED and Header

Figure 2.3 Vcc Regulator and I

2

C Pull-up Resistors

TP1

TP2

TP3, LED4

J6

Ω

RPU

Vcc

Содержание USB3750

Страница 1: ...ications Anomaly sheets are available upon request SMSC products are not designed intended authorized or warranted for use in any life support or other application where product failure could cause or...

Страница 2: ...board that demonstrates the capabilities of the USB3750 The board consists of the upstream and downstream ports a VOUT LED for visual confirmation of the switch functionality an I2 C header exposing t...

Страница 3: ...lator The USB375x EVB contains circuitry to pull up the I2 C pins to a specified Vcc voltage The Vcc voltage can be adjusted by choosing the proper R21 resistance R10 R11 and R12 are used to pull the...

Страница 4: ...n Software the LabVIEW Run time engine to run the executable and the Total Phase drivers to communicate with the Aardvark Once the software has been installed locate and run the USB3750 Eval exe progr...

Страница 5: ...ports The left tab contains a general I2 C register read write screen The boxes and strings display the bits descriptions found in the USB3750 datasheet The register menu and digital display can be us...

Страница 6: ...on Board User Manual Revision 1 1 08 29 11 6 SMSC USB375x EVB USER MANUAL on the part Refer to the USB3750 datasheet for a detailed description of each register and operation of the device Figure 3 3...

Страница 7: ...480 759 0200 SCH 7230AZ C00 PCB7230 USB3750 Evaluation Board B 1 1 Wednesday August 24 2011 P4 USB MICRO AB P4 USB MICRO AB VBUS 1 D 2 D 3 ID 4 GND 5 SHLD1 6 SHLD2 7 SHLD3 8 SHLD4 9 SHLD5 10 SHLD6 11...

Страница 8: ...EPT USB MINI AB 5POS RT ANG WM17122CT ND MOLEX 56579 0576 Yes P2 9 1 P4 CONNECTOR RECEPT MICRO USB TYPE AB SMT A97799CT ND TYCO ELECTRONICS 1981584 1 Yes 10 3 R1 R2 R3 R4 R5 R6 RESISTOR 1MEG OHM 1 10W...

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