AMD Geode SC1201 - Manual (Page 420)

420 AMD Geode™ SC1200/SC1201 Processor Data Book
Electrical Specifications 32579B
Figure 9-40. USB EOP Width Timing Diagram
Figure 9-41. USB Receiver Jitter Tolerance Timing Diagram
EOP Width
Data
Crossover
Level
Differential
Data Lines
t
period_F
tperiod_L
Differential Data to SE0 Skew
N*t
period_F
+ t
USB_DE1
N*t
period_L
+ t
USB_DE2
t
USB_SE1,
t
USB_SE2
t
USB_RE11,
t
USB_RE12
t
USB_RE21,
t
USB_RE22
Source:
Receiver:
t
period_F
Paired Transitions
Consecutive Transitions
Differential
Data Lines
Crossover Points
N*t
period_F
+ t
USB_RJ11
N*t
period_F
+ t
USB_RJ12
t
USB_RJ12
t
USB_RJ11
t
period_L
t
USB_RJD21
t
USB_RJD22
t
USB_RJU22
N*t
period_L
+ t
USB_RJD21
N*t
period_L
+ t
USB_RJU21
N*t
period_L
+ t
USB_RJD22
N*t
period_L
+ t
USB_RJU22
t
USB_RJU21