MPC8572CLPXARLD FREESCALE [Freescale Semiconductor, Inc], MPC8572CLPXARLD Datasheet - Page 68

• Manufacturer Part Number: MPC8572CLPXARLD
• Description: MPC8572E PowerQUICC III Integrated Processor Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

I
13.2
Table 54
68
At recommended operating conditions with OV
2
SCL clock frequency
Low period of the SCL clock
High period of the SCL clock
Setup time for a repeated START condition
Hold time (repeated) START condition (after this period, the first
clock pulse is generated)
Data setup time
Data input hold time:
Data output delay time
Setup time for STOP condition
Bus free time between a STOP and START condition
Noise margin at the LOW level for each connected device
(including hysteresis)
Noise margin at the HIGH level for each connected device
(including hysteresis)
Capacitive load for each bus line
Notes:
1.The symbols used for timing specifications herein follow the pattern t
2. As a transmitter, the MPC8572E provides a delay time of at least 300 ns for the SDA signal (referred to the VIHmin of the
3.The maximum t
4. The requirements for I
C
inputs and t
with respect to the time data input signals (D) reach the valid state (V) relative to the t
(H) state or setup time. Also, t
(S) went invalid (X) relative to the t
timing (I2) for the time that the data with respect to the STOP condition (P) reaching the valid state (V) relative to the t
reference (K) going to the high (H) state or setup time.
SCL signal) to bridge the undefined region of the falling edge of SCL to avoid unintended generation of START or STOP
condition. When the MPC8572E acts as the I2C bus master while transmitting, the MPC8572E drives both SCL and SDA.
As long as the load on SCL and SDA are balanced, the MPC8572E would not cause unintended generation of START or
STOP condition. Therefore, the 300 ns SDA output delay time is not a concern. If, under some rare condition, the 300 ns SDA
output delay time is required for the MPC8572E as transmitter, applicat ion note AN2919 referred to in note 4 below is
recommended.
the I
2
C Frequency Divider Ratio for SCL .
provides the AC timing parameters for the I
I
2
C AC Electrical Specifications
(first two letters of functional block)(reference)(state)(signal)(state)
I2OVKL
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
has only to be met if the device does not stretch the LOW period (t
2
C frequency calculation must be followed. Refer to Freescale application note AN2919, Determining
Parameter
I2SXKL
I2C
CBUS compatible masters
Table 54. I
symbolizes I
clock reference (K) going to the low (L) state or hold time. Also, t
DD
of 3.3 V ± 5%. All values refer to V
I
2
C bus devices
2
2
C AC Electrical Specifications
C timing (I2) for the time that the data with respect to the START condition
2
C interfaces.
for outputs. For example, t
Symbol
t
t
t
t
t
t
t
I2PVKH
(first two letters of functional block)(signal)(state)(reference)(state)
I2SVKH
I2KHDX
I2DVKH
I2DXKL
I2OVKL
I2SXKL
t
t
V
V
f
I2CH
I2CL
Cb
I2C
NH
NL
IH
1
(min) and V
0.1 × OV
0.2 × OV
I2C
IL
Min
100
1.3
0.6
0.6
0.6
0.6
1.3
(max) levels (see
—
0
—
—
clock reference (K) going to the high
0
2
I2CL
I2DVKH
DD
DD
) of the SCL signal.
symbolizes I
Freescale Semiconductor
I2PVKH
Table
Max
0.9
400
400
—
—
—
—
—
—
—
—
—
—
—
3
2).
symbolizes I
2
C timing (I2)
I2C
kHz
Unit
clock
μs
μs
μs
μs
μs
μs
μs
μs
pF
ns
V
V
2
for
4
C