Datasheet > AN2720S

AN2720S

更新时间： 2022-11-29 07:24:15

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
16页	244K
描述
Single-Chip USB-to-USB Networking Solution

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AN2720S 数据手册

EZ-Link (AN2720SC)

VID/PID/DID CONFIGURATION

Windows plug and play (PnP) uses the USB VID, PID and DID to select the driver for each

device in the system. It is possible to have two 2720 chips attached to a host, but have different

drivers loaded for them (for example, to create a CE-Link serial link emulator and an EZ-Link

NDIS product as separate devices).

The Manufacturing ID information is supplied from an EEPROM through the I2C port

(SDADID1, SCLDID0). The I2C boot loader will check to make sure that an EEPROM exists

and that the first byte in the EEPROM is 0xB0. If the boot loader finds that there is no EEPROM

or that there is an EEPROM but the first byte is not 0xB0 then the VID/PID/DID will default to

0x0547, 0x2720, and 0x0000, respectively. If, however, there is an EEPROM and the first byte is

0xB0, then the boot loader will read the next six bytes to determine the custom VID/PID/DID:

Byte Number

Value

0xB0

VID LSB

VID MSB

PID LSB

PID MSB

DID LSB

DID MSB

These bytes are reported in bytes 8-13 of the device’s response to a standard

GET_DESCRIPTOR device request.

AN2720 Data Sheet Version 1.0

06/07/00

Page 7

1...4 5 678 9 10...16

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型号	品牌	描述	获取价格	数据表
AN2720SC	CYPRESS	Single-Chip USB-to-USB Networking Solution	获取价格
AN2720SC-01	CYPRESS	Single-Chip USB-to-USB Networking Solution	获取价格
AN2720SC-02	CYPRESS	Single-Chip USB-to-USB Networking Solution	获取价格
AN273	SILICON	GR-909 TESTING WITH THE Si321X PROSLIC㈢	获取价格
AN2748	ETC	Genesi Pegasos II Kernel and NFS Facility	获取价格
AN27500A	PANASONIC	Telecom Circuit, 1-Func, 6.20 X 6.20 MM, 0.80 MM HEIGHT, 0.40 MM PITCH, QFN-44	获取价格