mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 115

• Manufacturer Part Number: mpc8569e
• Description: Mpc8569e Powerquicc Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

2.21
This section provides the AC and DC electrical specifications for the USB interface of the MPC8569E.
2.21.1
The following table provides the USB DC electrical characteristics.
2.21.2
The following table describes the general USB timing specifications.
Freescale Semiconductor
For recommended operating conditions, see
For recommended operating conditions, see
Input high voltage
Input low voltage
Input current (OV
Output high voltage (OV
Output low voltage (OV
Differential input sensitivity
Differential common mode range
Note:
1. The min V
2. The symbol OV
3. Applies to low/full speed
USB clock cycle time
USB clock cycle time
Skew between TXP and TXN
Skew among RXP, RXN, and RXD
Skew among RXP, RXN, and RXD
Notes:
1. The symbols used for timing specifications follow the pattern t
2. Skew measurements are done at OV
t
receive signals skew (RS) among RXP, RXN, and RXD (PND). Also, t
transmit signals skew (TS) between TXP and TXN (PN).
(first two letters of functional block)(state)(signal)
USB Interface
IL
USB DC Electrical Characteristics
USB AC Electrical Specifications
and max V
IN
Parameter
IN
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
= 0 V or OV
represents the input voltage of the supply. It is referenced in
Parameter
DD
DD
IH
= min, I
= min, I
values are based on the respective min and max OV
IN
= OV
OL
OH
= 2 mA)
Table 77. USB DC Electrical Characteristics
Table 78. USB General Timing Parameters
= –2 mA)
DD
DD
Table 3
Table 3
)
for transmit signals. For example, t
/2 of the rising or falling edge of the signals.
t
Symbol
t
t
USRSPND
USRPND
USTSPN
t
t
USCK
USCK
Symbol
1
V
V
V
V
V
V
I
OH
CM
IN
OL
IH
DI
IL
(first two letters of functional block)(state)(signal)
166.67
20.83
Min
—
—
—
USTSPN
Min
2.8
0.2
0.8
USRSPND
—
—
—
2
symbolizes USB timing (US) for the USB
IN
Table
values found in
Max
100
10
—
—
5
symbolizes USB timing (US) for the USB
3.
Max
±40
0.8
0.3
2.5
—
—
—
Unit
ns
ns
ns
ns
ns
Table 3.
for receive signals and
Low-speed transitions,
Full-speed transitions,
Full speed 48 MHz
Low speed 6 MHz
Unit
μA
V
V
V
V
V
V
Notes
USB Interface
2
2
2
Notes
—
—
1
1
2
3
3
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