EVB-USB2524 SMSC, EVB-USB2524 Datasheet - Page 49

• Manufacturer Part Number: EVB-USB2524
• Description: BOARD EVAL USB2524 SHARE/SWITCH
• Manufacturer: SMSC
• Series: MultiSwitch™r

Specifications of EVB-USB2524

• Main Purpose: Interface, USB 2.0 Hub
• Embedded: No
• Utilized Ic / Part: USB2524
• Primary Attributes: Quad Port Hub, High Speed (480Mbps), SMBus
• Secondary Attributes: Overcurrent Protection, Port Power Switching, Multi-TT Enabled
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: USB2524
• Other names: 638-1044

USB MultiSwitch
Datasheet
SMSC USB2524
9.1.1.2
NAME
RESET_N
t1
t2
t3
t4
t5
t6
t7
VSS
Hardware
asserted
RESET_N Asserted.
Hub Recovery/Stabilization.
EEPROM Read / Hub Config.
USB Attach (See
Host acknowledges attach and signals USB
Reset.
USB Idle.
Completion time for requests (with or without data
stage).
reset
RESET_N for EEPROM Configuration
Note 9.2
TM
Hub
Read Strap
t1
Options
When in Bus-Powered mode, the Hub and its associated circuitry must not consume more
than 100mA from the upstream USB power source during t4+t5+t6+t7.
DESCRIPTION
Note
Figure 9.2 Reset_N Timing for EEPROM Mode
Table 9.2 Reset_N Timing for EEPROM Mode
9.2)
Read EEPROM
Set Options
t2
+
DATASHEET
t4
t3
49
Upstream
Attach
USB
MIN
100
1
USB Reset
recovery
t5
undefined
TYP
2.0
t6
Idle
MAX
99.5
Revision 1.91 (08-22-07)
500
100
5
t7
completion
response
request
Start
UNITS
msec
msec
msec
msec
msec
μsec
μsec