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参数资料
| 型号： | USB2513-AEZG |
| 厂商： | STANDARD MICROSYSTEMS CORP |
| 元件分类： | 总线控制器 |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, QCC36 |
| 封装： | 6 X 6 MM, 0.50 MM PITCH, ROHS COMPLIANT, QFN-36 |
| 文件页数： | 49/76页 |
| 文件大小： | 1924K |
| 代理商： | USB2513-AEZG |
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USB 2.0 Hi-Speed Hub Controller
Datasheet
SMSC USB251x
53
Revision 1.1 (04-26-10)
DATASHEET
8.3
SMBus Slave Interface
Instead of loading User-Defined Descriptor data from an external EEPROM, the SMSC hub can be
configured to receive a code load from an external processor via an SMBus interface. The SMBus
interface shares the same pins as the EEPROM interface; if CFG_SEL[1] & CFG_SEL[0] activate the
SMBus interface, external EEPROM support is no longer available (and the user-defined descriptor
data must be downloaded via the SMBus). The SMSC hub waits indefinitely for the SMBus code load
to complete and only “appears” as a newly connected device on USB after the code load is complete.
The hub’s SMBus implementation is a slave-only SMBus device. The implementation only supports
read block and write block protocols. The hub responds to other protocols as described in Section
8.3.3, "Invalid Protocol Response Behavior," on page 54. Reference the System Management Bus
specification, Rev 1.0.
The SMBus interface is used to read and write the registers in the device. The register set is shown
8.3.1
SMBus Slave Addresses
The SMBus slave address is 58h (01011000b).
8.3.2
Bus Protocols
Typical Write Block and Read Block protocols are shown below. Register accesses are performed
using 7-bit slave addressing, an 8-bit register address field, and an 8-bit data field. The shading
indicates the hub driving data on the SMBDATA line; otherwise, host data is on the SDA/SMBDATA
line.
The slave address is the unique SMBus Interface Address for the hub that identifies it on SMBus. The
register address field is the internal address of the register to be accessed. The register data field is
the data that the host is attempting to write to the register or the contents of the register that the host
is attempting to read.
Note: Data bytes are transferred MSB first.
8.3.2.1
Block Read/Write
The block write begins with a slave address and a write condition. After the command code, the host
issues a byte count which describes how many more bytes will follow in the message. If a slave had
20 bytes to send, the first byte would be the number 20 (14h), followed by the 20 bytes of data. The
byte count may not be 0. A block read or write is allowed to transfer a maximum of 32 data bytes.
Note: For the following SMBus tables:
Figure 8.1 Block Write
D enotes M aster-to-S lave
D enotes S lave-to-M aster
1
81
S
Slave Address
Register Address
Wr
A
17
1
8
A
1
...
Byte Count = N
A
Data byte 1
A
Data byte 2
81
1
88
Data byte N
A
P
Block Write
A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| USB2513-AEZG-TR | 功能描述:USB 接口集成电路 HI-PERFORM LW PWR SM FOOT USB 2.0 HUB RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| USB2513B | 制造商:SMSC 制造商全称:SMSC 功能描述:USB 2.0 Hi-Speed Hub Controller |
| USB2513B-AEZC | 功能描述:IC LINEAR RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:* 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| USB2513B-AEZC-TR | 制造商:Microchip Technology 功能描述:USB 2.0 HIGH SPEED 3 PORT HUB 制造商:Microchip Technology 功能描述:USB 2.0 Hub Controller 36-Pin QFN EP T/R 制造商:Microchip Technology Inc 功能描述:MCCUSB2513B-AEZC-TR USB CHIP 制造商:Microchip Technology Inc 功能描述:3-PORT USB 2.0 HI-SPEED HUB CONTROLLER - Tape and Reel 制造商:Microchip Technology Inc 功能描述:3-PORT USB 2.0 HUB CTRLR 36VQFN 制造商:Microchip Technology Inc 功能描述:USB 2.0 HIGH SPEED 3 PORT HUB CNTLR |
| USB2513B-AEZG | 功能描述:USB 接口集成电路 USB2.0 HIGH SPEED 3-Port Hub ControllR RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
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