AT43USB320A_04 ATMEL [ATMEL Corporation], AT43USB320A_04 Datasheet - Page 106

• Manufacturer Part Number: AT43USB320A_04
• Description: Full-speed USB Microcontroller with an Embedded Hub
• Manufacturer: ATMEL [ATMEL Corporation]

106
AT43USB320A
Table 39. Hub Event Timings
Symbol
TDCNN
TDDIS
TURSM
TDRST
TDSPDEV
TURLK
TURLSEO
TURPSEO
TUDEOP
Parameter
Time to detect a
downstream port connect
event
Time to detect a
disconnect event on
downstream port
Awake Hub
Suspended Hub
Time from detecting
downstream resume to
rebroadcast
Duration of driving reset to
a downstream device
Time to evaluate device
speed after reset
Time to detect a long K
from upstream
Time to detect a long SEO
from upstream
Duration of repeating SEO
upstream
Duration of sending SEO
upstream after EOF1
Condition
Only for a SetPortFeature
(PORT_RESET) request
Min
2.5
2.5
2.5
10
2.5
2.5
2.5
Max
2000
2000
12000
100
20
1000
5.5
5.5
23
2
1443E–USB–4/04
Unit
µs
µs
µs
µs
µs
µs
µs
FS
bits
FS
bits