MPC8347 FREESCALE [Freescale Semiconductor, Inc], MPC8347 Datasheet - Page 36

• Manufacturer Part Number: MPC8347
• Description: Integrated Host Processor Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

USB
9
This section provides the AC and DC electrical specifications for the USB interface of the MPC8347EA.
9.1
Table 34
9.2
Table 35
36
usb clock cycle time
Input setup to usb clock - all inputs
input hold to usb clock - all inputs
usb clock to output valid - all outputs
Output hold from usb clock - all outputs
Notes:
1. The symbols for timing specifications follow the pattern of t
2. All timings are in reference to USB clock.
3. All signals are measured from OV
4. Input timings are measured at the pin.
5. For active/float timing measurements, the Hi-Z or off state is defined to be when the total current delivered through
for inputs and t
usb timing (US) for the input (I) to go invalid (X) with respect to the time the usb clock reference (K) goes high (H).
Also, t
(O) going invalid (X) or output hold time.
for 3.3 V signaling levels.
the component pin is less than or equal to that of the leakage current specification.
USB
High-level input voltage
Low-level input voltage
Input current
High-level output voltage,
I
Low-level output voltage,
I
Note:
1. The symbol V
OH
OL
provides the DC electrical characteristics for the USB interface.
describes the general timing parameters of the USB interface of the MPC8347EA.
USB DC Electrical Characteristics
USB AC Electrical Specifications
= 100 μA
= –100 μA
USKHOX
MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 3
Parameter
Parameter
symbolizes USB timing (US) for the USB clock reference (K) to go high (H), with respect to the output
(First two letters of functional block)(reference)(state)(signal)(state)
IN
, in this case, represents the OV
Table 34. USB DC Electrical Characteristics
Table 35. USB General Timing Parameters
Symbol
DD
V
V
V
V
/2 of the rising edge of the USB clock to 0.4 × OV
I
IN
OH
OL
IH
IL
Symbol
t
t
t
t
USKHOV
USKHOX
USIVKH
USIXKH
t
USCK
1
IN
OV
symbol referenced in
DD
–0.3
Min
(First two letters of functional block)(signal)(state) (reference)(state)
—
—
2
– 0.2
Min
15
—
4
1
2
for outputs. For example, t
Max
Table 1
—
—
—
—
7
OV
DD
Max
0.8
0.2
±5
—
and
+ 0.3
DD
Table
of the signal in question
Unit
ns
ns
ns
ns
ns
Freescale Semiconductor
2.
USIXKH
Unit
μA
V
V
V
V
symbolizes
Notes