AM186ES Advanced Micro Devices, AM186ES Datasheet - Page 78

• Manufacturer Part Number: AM186ES
• Description: microcontrollers provide a low-cost/ high-performance solution for embedded system designers who wish to use the x86 architecture.
• Manufacturer: Advanced Micro Devices

Notes:
1. All timing parameters are measured at V
2. Parameters 3 (t
78
D+/D–
No.
are with the load values shown in Table 35, “Pin List Summary,” on page A-12.
details.
1
2
3
4
CLK
Data Lines (D+/D–)
Differential
Symbol
t
t
JR1
JR2
t
t
R
F
JR1
) and 4 (t
Description
Rise time (Cl = 50 pF)
Fall time (Cl = 50 pF)
Consecutive transition jitter (measured at crossover point)
Paired transition jitter (measured at crossover point)
JR2
Am186™CC Communications Controller Data Sheet
) show jitter for the receiver, not the transmitter. See the USB Version 1.0 specification for more
Figure 35. USB Data Signal Rise and Fall Times
Consecutive Transition
Paired Transition
Parameter
Figure 36. USB Receiver Jitter Tolerance
CC
/2 with 50-pF loading on CLKOUT unless otherwise noted. All output test conditions
10%
Table 24. USB Timing
Rise Time
1
3
1, 2
90%
–18.5
Min
–9
4
4
Fall Time
Preliminary
48 MHz
2
4
Max
18.5
20
20
9
10%
Unit
ns
ns
ns
ns