USB2244-AEZG-05 SMSC, USB2244-AEZG-05 Datasheet - Page 36

• Manufacturer Part Number: USB2244-AEZG-05
• Description: USB Interface IC Ultra Fast USB 2.0 Flash Media CTRL
• Manufacturer: SMSC

Specifications of USB2244-AEZG-05

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 2.0 (10-14-09)
7.3.2
NAME
t1
t2
t3
t4
t5
t6
t7
RESET_N asserted
Device recovery/stabilization
8051 programs device configuration
USB attach
Host acknowledges attach and signals USB reset
USB idle
Ready to handle requests (with or without data)
Note: All power supplies must have reached the operating levels mandated in
USB Bus Reset
In response to the upstream port signaling a reset to the device, the device does the following:
1. Sets default address to ‘0’.
2. Sets configuration to: Unconfigured.
3. All transactions are stopped.
4. Processor reinitializes and restarts.
5. All media interfaces are disabled.
Parameters, prior to (or coincident with) the assertion of RESET_N.
DESCRIPTION
Table 7.2 RESET_N Timing for EEPROM Mode
Ultra Fast USB 2.0 Multi-Format, SD/MMC, and MS Flash Media Controllers
DATASHEET
36
MIN
100
1
Undefined
TYP
20
MAX
500
100
50
5
Chapter 9, DC
SMSC USB224x
UNITS
msec
msec
msec
msec
msec
Datasheet
μsec
μsec