at43usb320a ATMEL Corporation, at43usb320a Datasheet - Page 105

• Manufacturer Part Number: at43usb320a
• Description: Full-speed Usb Microcontroller With An Embedded Hub
• Manufacturer: ATMEL Corporation

1443E–USB–4/04
Table 37. Hub Timings, Full-speed Operation
Table 38. Hub Timings, Low-speed Operation
Symbol
THDD2
THDJ1
THDJ2
TFSOP
TFEOPD
TFHESK
TLEOPD
TLHESK
Symbol
TLHDJ1
TLHDJ2
TLUHJ1
TLUHJ2
TLHDD
TSOP
Parameter
Hub Differential Data
Delay without cable
Hub Diff Driver Jitter to
Next Transition for Paired
Transitions
Data Bit Width Distortion
after SOP
Hub EOP Delay Relative
to THDD
Hub EOP Output Width
Skew
Parameter
Hub Differential Data
Delay
Downstr Hub Diff Driver
Jitter to Next Transition,
downst for Paired
Transitions, downst to
Next Transition, upstr for
Paired Transitions, upstr
Data Bit Width Distortion
after SOP
Hub EOP Delay Relative
to THDD
Hub EOP Output Width
Skew
Condition
Condition
AT43USB320A
-300
Min
Min
-15
-45
-15
-45
-45
-60
-3
-1
-5
0
0
Max
Max
300
200
300
44
15
15
45
15
45
45
60
3
1
5
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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