9)
Timing Chart
a) Packet Voltage Levels
VOH (min)
VIH (min)
VIL (max)
VOL (max)
VOH (min)
VIH (min)
VIL (max)
VOL (max)
b) Disconnect Detection
VIHZ (min)
c) Full-speed Device Connect Detection
d) Differential Data Jitter
TPERIOD
Differential
Data Lines
(VCRS)
42640901TH Rev.1
VSS
Bus Idle
First Bit
SOP
of Packet
VSS
D+ / D-
VIL
D- / D+
VSS
Device
Connected
D+
VIH
D- / D+
VSS
Device
Connected
Crossover
Points
Consecutive
Transitions
N * TPERIOD + TxDJ1
N * TPERIOD + TxDJ2
Bus Driven to
Last Bit
J State at end
of Packet
of EOP
SE0
Portion
of EOP
≥2.5µS
DisConnect
Detected
D-
≥2.5µS
Connect
Detected
TPERIOD = 12Mbps (±0.25%)
TxDJ1 = Min-3.5ns~Max3.5ns
TxDJ2 = Min-4ns~Max4ns
Paired
Transitions
Oki Data CONFIDENTIAL
Bus
Floats
Bus Idle
85 /