EVB-USB2240-IND SMSC, EVB-USB2240-IND Datasheet - Page 36

• Manufacturer Part Number: EVB-USB2240-IND
• Description: EVALUATION BOARD USB2241-AEZG
• Manufacturer: SMSC

Specifications of EVB-USB2240-IND

• Main Purpose: Memory, SD/MMC
• Embedded: No
• Utilized Ic / Part: USB2241
• Primary Attributes: Read and Write to Over 22 Flash Media Formats from xD, MS, SD, and MMC
• Secondary Attributes: Socket for External EEPROM Expansion, USB Power with 3.3 V Regulator
• Interface Type: USB
• Product: Interface Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: USB2240
• Other names: 638-1078

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