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USB3813I-1080XY 参数 Datasheet PDF下载

USB3813I-1080XY图片预览
型号: USB3813I-1080XY
PDF下载: 下载PDF文件 查看货源
内容描述: USB 2.0高速3端口集线器控制器经过优化,用于便携式应用 [USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications]
分类和应用: 控制器便携式
文件页数/大小: 68 页 / 882 K
品牌: SMSC [ SMSC CORPORATION ]
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USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications  
Datasheet  
2
7.2.2  
Pull-Up Resistors for I C  
The circuit board designer is required to place external pull-up resistors (10 kΩ recommended) on the  
SDA & SCL signals (per SMBus 1.0 Specification) to Vcc in order to assure proper operation.  
7.3  
SMBus Slave Interface  
The USB3813 includes an integrated SMBus slave interface, which can be used to access internal  
device run time registers or program the internal OTP memory. SMBus detection is accomplished by  
detection of pull-up resistors (10 KΩ recommended) on both the SMBDATA and SMBCLK signals. To  
disable the SMBus, a pull-down resistor of 10 KΩ must be applied to SMBDATA. The SMBus interface  
can be used to configure the device as detailed in Section 6.1, "Configuration Method Selection," on  
page 24.  
Note: All device configuration must be performed via the SMSC Pro-Touch Programming Tool. For  
additional information on the Pro-Touch programming tool, contact your local SMSC sales  
representative.  
7.3.1  
SMBus Run Time Accessible Registers  
Table 7.1 provides a summary of the SMBus accessible run time registers. Each register is detailed in  
the subsequent tables.  
Note: The SMBus page register must be configured to allow the SOC to access the proper register  
space. Refer to Section 7.3.2, "Run Time SMBus Page Register," on page 48 for details.  
Table 7.1 SMBus Accessible Run Time Registers  
XDATA  
ADDR  
NAME  
UP_BC_DET  
0x30E2  
0x30E3  
0x30E4  
0x30E5  
0x30E6  
0x30E8  
0x30E9  
0x30EC  
0x30ED  
0x30EE  
0x318B  
0x318E  
0x6100  
0x6101  
Table 7.2, "Upstream Battery Charging Detection Control Register"  
Table 7.3, "Upstream Custom Battery Charger Control Register"  
Table 7.4, "Upstream Custom Battery Charger Status Register"  
Table 7.5, "Port Power Status Register"  
UP_CUST_BC_CTL  
UP_CUST_BC_STAT  
PORT_PWR_STAT  
OCS_STAT  
Table 7.6, "OCS Status Register"  
INT_STATUS  
Table 7.7, "Serial Port Interrupt Status Register"  
INT_MASK  
Table 7.8, "Serial Port Interrupt Mask Register"  
BC_CHG_MODE  
CHG_DET_MSK  
CFGP  
Table 7.9, "Upstream Battery Charger Mode Register"  
Table 7.10, "Charge Detect Mask Register"  
Table 7.11, "Configure Portable Hub Register"  
PSELSUSP  
Table 7.12, "Port Select and Low-Power Suspend Register"  
Table 7.13, "Connect Configuration Register"  
CONNECT_CFG  
BC_CTL_1 (Upstream)  
Table 7.14, "Upstream (Port 0) Battery Charging Control 1 Register"  
Table 7.15, "Upstream (Port 0) Battery Charging Control 2 Register"  
BC_CTL_2  
(Upstream)  
SMSC USB3813  
35  
Revision 1.0 (06-17-13)  
DATASHEET