Figure 9-37. Data Signal Rise And Fall Timing Diagram; Figure 9-38. Source Differential Data Jitter Timing Diagram - AMD Geode SC3200 Data Book

32581C
Full Speed: 4 to 20 ns at C
Low Speed: 75 ns at C
t
period_F
t
period_L
Differential
Data Lines

Figure 9-38. Source Differential Data Jitter Timing Diagram

402
C
L
Differential
Data Lines
C
L
= 50 pF
L
= 50 pF, 300 ns at C = 350 pF
L L

Figure 9-37. Data Signal Rise and Fall Timing Diagram

t
USB_DJ11
t
USB_DJD21
t
USB_DJU21
Consecutive Transitions
N*t + t
_
period F USB_DJ11
N*t + t
period_L USB_DJD21
N*t + t
period_L USB_DJU21
Paired Transitions
N*t
N*t
N*t
Rise Time
10%
t
USB_R1,2
Crossover Points
(1.3-2.0) V
+ t
period_F USB_DJ12
+ t
period_L USB_DJD22
+ t
period_L USB_DJU22
AMD Geode™ SC3200 Processor Data Book
Electrical Specifications
Fall Time
90% 90%
10%
t
USB_F1,2
t
USB_DJ12
t
USB_DJD22
t
USB_DJU22