mc68hc908ld64 Freescale Semiconductor, Inc, mc68hc908ld64 Datasheet - Page 353

• Manufacturer Part Number: mc68hc908ld64
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

24.12.4 USB Signaling Levels
MC68HC908LD64
Freescale Semiconductor
Notes:
Differential “1”
Differential “0”
Data J State:
Low Speed
Full Speed
Data K State:
Low Speed
Full Speed
Idle State:
Low Speed
Full Speed
Resume State:
Low Speed
Full Speed
Start of Packet (SOP)
End of Packet (EOP)
Disconnect
Connect
Reset
1. The width of EOP is defined in bit times relative to the speed of transmission.
2. The width of EOP is defined in bit times relative to the device type receiving the EOP.
3. These times apply to an active device that is not in the suspend state.
(Upstream only)
(Upstream only)
(Downstream only)
Bus State
—
Rev. 3.0
Table 24-14. USB Signaling Levels
(D+) – (D–) > 200 mV and D+ or D– > V
(D+) – (D–) < –200 mV and D+ or D– > V
Differential “0”
Differential “1”
Differential “1”
Differential “0”
Differential “0” and D– > V
Differential “1” and D+ > V
Differential “1” and D+ > V
Differential “0” and D– > V
Data lines switch from Idle to K State
D+ and D– < V
—
—
D+ and D– < V
times
time
From Originating Driver
(1)
Electrical Specifications
followed by an Idle for 1 bit
SE
SE
(min) for 2 bit
for ≥10 ms
SE
SE
SE
SE
(max.) and D+ < V
(max.) and D+ < V
(max.) and D– < V
(max.) and D– < V
Signaling Levels
D+ and D– < V
D+ and D– < V
D+ or D– > V
D+ and D– < V
SE
SE
time
(must be recognized within 5.5
µs)
(min.)
USB DC Electrical Characteristics
(min.)
(3)
(2)
SE
SE
SE
SE
followed by a J State
(min.)
(min.)
(min.)
(min.)
At Receiver
SE
Electrical Specifications
SE
SE
SE
(max) for ≥ 2.5 µs
(min) for ≥ 1 bit
(max) for ≥ 2.5 µs
(min) for ≥ 2.5 µs
Data Sheet
353