mpc8349ea Freescale Semiconductor, Inc, mpc8349ea Datasheet - Page 45

• Manufacturer Part Number: mpc8349ea
• Description: Mpc8349ea Powerquicc
• Manufacturer: Freescale Semiconductor, Inc

Figure 31
Figure 32
Freescale Semiconductor
Fall time of both SDA and SCL signals
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)
Notes:
1. The symbols for timing specifications follow the pattern of t
2. MPC8349EA provides a hold time of at least 300 ns for the SDA signal (referred to the V
3. The maximum t
4. C
5.)The MPC8349EA does not follow the “I
and t
respect to the time data input signals (D) reach the valid state (V) relative to the t
state or setup time. Also, t
goes invalid (X) relative to the t
timing (I2) for the time that the data with respect to the stop condition (P) reaches the valid state (V) relative to the t
reference (K) going to the high (H) state or setup time. For rise and fall times, the latter convention is used with the appropriate
letter: R (rise) or F (fall).
the undefined region of the falling edge of SCL.
B
SDA
SCL
= capacitance of one bus line in pF.
(first two letters of functional block)(reference)(state)(signal)(state)
provides the AC test load for the I
shows the AC timing diagram for the I
MPC8349EA PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
S
I2DVKH
t
I2CF
t
I2CL
t
I2SXKL
must be met only if the device does not stretch the LOW period (t
Output
I2SXKL
Parameter
Table 42. I
I2C
symbolizes I
clock reference (K) going to the low (L) state or hold time. Also, t
5
Figure 32. I
2
t
C-BUS Specifications” version 2.1 regarding the t
I2DXKL
2
C AC Electrical Specifications (continued)
Figure 31. I
2
t
C timing (I2) for the time that the data with respect to the start condition (S)
Z
I2DVKH
0
= 50 Ω
t
2
I2CH
2
C.
C Bus AC Timing Diagram
2
t
I2SXKL
2
C bus.
C AC Test Load
(first two letters of functional block)(signal)(state)(reference)(state)
for outputs. For example, t
Sr
t
I2SVKH
Symbol
R
t
t
t
I2KHKL
I2KHDX
I2PVKH
t
V
L
V
I2CF
NH
NL
= 50 Ω
I2C
1
clock reference (K) going to the high (H)
I2DVKH
0.1 × OV
0.2 × OV
t
I2PVKH
OV
IH
I2CL
(min) of the SCL signal) to bridge
I2CF
Min
0.6
1.3
DD
__
symbolizes I
) of the SCL signal.
t
I2CR
/2
AC parameter.
DD
DD
I2PVKH
P
2
Max
t
300
I2CF
C timing (I2) with
—
—
—
—
symbolizes I
S
for inputs
I2C
Unit
ns
μs
μs
clock
V
V
2
C
I
45
2
C