EVB-2504 SMSC, EVB-2504 Datasheet - Page 36

• Manufacturer Part Number: EVB-2504
• Description: BOARD EVALUATION FOR USB2504
• Manufacturer: SMSC

Specifications of EVB-2504

• Main Purpose: Interface, USB 2.0 Hub
• Utilized Ic / Part: USB2504
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: USB2504, USB2504A
• Other names: 638-1038

Revision 2.3 (08-27-07)
5.6.1.2
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 Note).
Host acknowledges attach and signals USB
Reset.
USB Idle.
Completion time for requests (with or without data
stage).
reset
RESET_N for EEPROM Configuration
Notes:
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.
All Power Supplies must have reached the operating levels mandated in
Parameters", prior to (or coincident with) the assertion of RESET_N.
Read Strap
t1
Options
DESCRIPTION
Figure 5.3 Reset_N Timing for EEPROM Mode
Table 5.6 Reset_N Timing for EEPROM Mode
Read EEPROM
Set Options
t2
+
DATASHEET
t4
t3
36
Upstream
Attach
USB
MIN
100
1
USB Reset
recovery
t5
undefined
Integrated USB 2.0 Compatible 4-Port Hub
TYP
2.0
t6
Idle
SMSC USB2504/USB2504A
Section Chapter 8, "DC
MAX
99.5
500
100
5
t7
completion
response
request
Start
UNITS
Datasheet
msec
msec
msec
msec
msec
μsec
μsec