SMSC USB20H04 Скачать руководство пользователя страница 26

Страница: 26 / 35

4-Port USB 2.0 Hub Controller

Datasheet

Revision 1.63 (03-30-07)

Page 26

SMSC USB20H04

DATASHEET

8.4.1.2

EEPROM Configuration Timing

Figure 8.4 - Timing to Complete Configuration from EEPROM

Table 8.8 - Time Values to Configure From EEPROM

NAME DESCRIPTION

MIN

TYP

MAX

UNITS

T1 RESET_N

asserted

100

nsec

T2 (I

C) USB20H04 recovery/stabilization – until

first rising edge of SCK/SCL

sec

T3 (I

C) EEPROM configuration to final

SCK/SCL activity

msec

Configuration finished to Hub enabled

nsec

RESET_N

GND

Hardware

Reset Asserted

CS/EE_SEL

& SMB_SEL_N

strapping

options read

First Clock

Rising Edge

Configuration

Finished

SCK/SCL

Hub Function

Enable

Содержание USB20H04

Страница 1: ...ly changes mode to bus power Integrated termination and pull up pull down resistors Internal short circuit protection of DP and DM lines On chip oscillator uses low cost 24MHz crystal Supports individ...

Страница 2: ...to deviate from published specifications Anomaly sheets are available upon request SMSC products are not designed intended authorized or warranted for use in any life support or other application whe...

Страница 3: ...ect 16 7 2 Upstream PHY 16 7 3 Clock PLL 16 7 4 Internal Configuration Select 16 7 5 Serial Interface 17 7 5 1 SMBus Slave 17 7 5 2 I 2 C Memory Interface 17 7 6 Repeater 17 7 7 SIE 17 7 8 Controller...

Страница 4: ...tions 12 Table 5 3 Recommended Crystal External Clock Conditions 12 Table 6 1 Electrical Characteristics Supply Pins 13 Table 6 2 DC Electrical Characteristics Digital Pins 13 Table 6 3 Pin Capacitanc...

Страница 5: ...used to control VBUS switching to downstream ports and to limit current and sense over current conditions A default configuration is available in the USB20H04 following a reset This configuration may...

Страница 6: ...a permanently hardwired USB peripheral device on a port by port basis Enable downstream facing ports a port by port basis Enable EOP generation of EOF1 when operating in full speed mode as described...

Страница 7: ...24 MHz Crystal To EEPROM or SMBus Master Routing Logic SCK SD TT 1 TT 2 TT 3 TT 4 Port Controller Downstream PHY 1 Port 1 OC Sense Switch Driver LED Drivers Downstream PHY 4 Port 4 OC Sense Switch Dri...

Страница 8: ...DA18 VSS VDD18 VSS VBUSDET SELF_PWR SMB_SEL_N RESET_N 64 63 62 61 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 USBDP0 USBDM0 VSS USBDM1 USBDP1 VDDA33 USBDP2 USBDM2 VSS USBDM3 USBDP3 VDDA33 USBDP...

Страница 9: ...elect and Serial Port Interface NAME BUFFER TYPE ACTIVE LEVEL DESCRIPTION SMB_SEL_N I N A SMBus Select Selects between configuration via the SMBus interface or from an external EEPROM or using the int...

Страница 10: ...ver Current Sense input Internal pull up resistor to 3 3V GR1_N OD8 Low Enables green indicator to downstream port 1 AM1_N OD8 Low Enables amber indicator to downstream port 1 USBDP2 IO U N A USB Posi...

Страница 11: ...Table 4 5 Power and Ground Signals NAME BUFFER TYPE ACTIVE LEVEL DESCRIPTION VDD3 3 N A N A 3 3V Digital Supply Powers digital pads VDD1 8 N A N A 1 8V Digital Supply Powers digital core VSS N A N A S...

Страница 12: ...125 oC Table 5 2 Recommended Operating Conditions PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 1 8V Supply Voltage VDD1 8 and VDDA1 8 VDD1 8 1 74 1 8 2 0 V 3 3V Supply Voltage VDD3 3 and VDDA3 3 VDD...

Страница 13: ...orts Low Speed Full Speed ICC3 3FS3 3 downstream ports active 55 mA ICC1 8HS3 105 mA 3 Ports High Speed ICC3 3HS3 3 downstream ports active 115 mA ICC1 8FS4 100 mA 4 Ports Low Speed Full Speed ICC3 3F...

Страница 14: ...Level Output Leakage VOL VOH IOL IOL 8 mA VDD3 3 3 3V IOH 4mA VDD3 3 3 3V VIN 0 to VDD3 3 Note 6 1 2 4 10 0 8 10 V V uA OD8 and IOD8 Buffer Low Output Level Output Leakage VOL IOL IOL 8 mA VDD3 3 3 3...

Страница 15: ...V HS FUNCTIONALITY Input levels HS Differential Input Sensitivity VDIHS VI DP VI DM 100 mV HS Data Signaling Common Mode Voltage Range VCMHS 50 500 mV Squelch Threshold 100 mV HS Squelch Detection Th...

Страница 16: ...al role OTG host on the upstream port the USB20H04 has the ability to attach a 1 5K ohm resistor to the DP0 pin for 5 to 10ms This is defined as data line pulsing in the OTG specification 7 3 Clock PL...

Страница 17: ...ial clock and the START and STOP conditions 7 6 Repeater The hub repeater is responsible for managing connectivity between upstream and downstream facing ports which are operating at the same speed Th...

Страница 18: ...am of a Self Powered Hub for a typical implementation 7 12 1 Over Current Sense An external device monitors the current being provided to attached peripherals and generates an output during over curre...

Страница 19: ...utomatic Mode Port Indicators COLOR DEFINITION Off Disconnected Disabled Not Configured Resetting Testing Suspending or Resuming Amber Over Current Condition Green Enabled Transmit or TransmitR In man...

Страница 20: ...mode please see Application Note 9 29 USB20H04 4 Port USB 2 0 Hub Controller Configuration Programming The Application Note also discusses designing a Hub system that supports In Circuit Programming o...

Страница 21: ...al EEPROM following reset The values to be programmed into the EEPROM are summarized in Table 8 1 Summary of OEM Value Programming Table 8 1 Summary of OEM Value Programming ADDRESS FIELD NAME DESCRIP...

Страница 22: ...ed mode 0 EOP generation at EOF1 1 EOP generation at EOF1 disabled 2 Current Sensing Selects whether current sensing is ganged on all ports or on an individual port by port basis 0 Individual port by...

Страница 23: ...ort enabled 5 4 Reserved Set to zero 3 0 Over Current Timer Selects the over current timer delay in 2 ms increments for the active ports 0101 delay is 2ms 1010 delay is 4ms 1111 delay is 6ms Note All...

Страница 24: ...re Reset A valid hardware reset is initiated by the assertion of RESET_N for a minimum of 100ns after all power supplies are within operating range Assertion of RESET_N external pin causes the followi...

Страница 25: ...Bus NAME DESCRIPTION MIN TYP MAX UNITS T1 RESET_N asserted 100 nsec T2 USB20H04 recovery stabilization until first external SCK SCL activity 16 32 nsec T3 Implementation dependent load time T4 Configu...

Страница 26: ...NAME DESCRIPTION MIN TYP MAX UNITS T1 RESET_N asserted 100 nsec T2 I 2 C USB20H04 recovery stabilization until first rising edge of SCK SCL 24 30 sec T3 I 2 C EEPROM configuration to final SCK SCL act...

Страница 27: ...devices 1 Sets default address to 0 2 Sets configuration to un configured 3 Negates VBUSx_N where x stands for the port number to all downstream ports 4 Clears all TT buffers 5 Moves device from susp...

Страница 28: ...ication Number 4 09h 09h bDeviceClass Class code assigned by USB IF for Hubs 5 00h 00h bDeviceSubClass Class code assigned by USB IF for Hubs 6 00h 01h bDeviceProtcol Protocol code assigned by the USB...

Страница 29: ...for Bus Powered E0h for Self Powered 7 user signal Bitmap user signal Bitmap bmAttibutes All other values are reserved If Dynamic Power support is disabled this value is derived from the OEM value fo...

Страница 30: ...Number of this interface 3 00h 00h bAlternateSetting Value used to select this alternate setting for the interface 4 01h 01h bNumEndpoints Number of endpoints used by this interface not including endp...

Страница 31: ...is descriptor in bytes 1 09h 09h bDescriptorType OTG Descriptor Type Attribute Fields D 7 2 Reserved D1 HNP Support not supported 2 01h 01h wMaxPacketSize D0 SRP Support Table 9 9 Class Specific Hub D...

Страница 32: ...IELD NAME VALUE DESCRIPTION 6 HubContrCurrent user Maximum current requirements of the hub controller electronics in mA Derived from OEM value 7 DeviceRemovable user Indicates if port has a removable...

Страница 33: ...l over current protection and power switching on each downstream port VBUS D D GND GR AM VBUS D D GND GR AM VBUS D D GND GR AM VBUS D D GND GR AM OUT1 OUT2 OUT3 OUT4 EN1 OC1 EN2 OC2 EN3 OC3 EN4 OC4 3...

Страница 34: ...age 34 SMSC USB20H04 DATASHEET USB20H04 Port 1 Downstream VBUS Power Source VDD3 3 Power Switch OC Sense IN EN OC OUT VBUS1_N OCS1_N GR1_N AM1_N USBDP1 USBDM1 VBUS D D Green Indicator Amber Indicator...

Страница 35: ...09 0 20 Lead Frame Thickness L 0 45 0 60 0 75 Lead Foot Length L1 1 00 Lead Length e 0 50 Basic Lead Pitch 0 o 7 o Lead Foot Angle W 0 17 0 22 0 27 Lead Width R1 0 08 Lead Shoulder Radius R2 0 08 0 2...

Результаты поиска

Содержание USB20H04

Отзывы:

Похожие инструкции для USB20H04

Бренды по названию

Популярные бренды

SMSC USB20H04, Техническое описание

Результаты поиска

Содержание USB20H04

Отзывы:

Похожие инструкции для USB20H04

Бренды по названию

Популярные бренды