mpc8378e Freescale Semiconductor, Inc, mpc8378e Datasheet - Page 63

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mpc8378e

Manufacturer Part Number
mpc8378e
Description
Powerquicc Ii Pro Processor Hardware Specifications
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Figure 41
Figure 42
Freescale Semiconductor
All values refer to V
Data hold 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)
Note:
1
2
3
The symbols used for timing specifications herein follow the pattern of t
for inputs and t
(I2) with respect to the time data input signals (D) reach the valid state (V) relative to the t
high (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. For rise and fall times, the latter convention is used with the appropriate
letter: R (rise) or F (fall).
MPC8378E provides a hold time of at least 300 ns for the SDA signal (referred to the V
undefined region of the falling edge of SCL.
The maximum t
SDA
SCL
provides the AC test load for the I
shows the AC timing diagram for the I
S
IH
(first two letters of functional block)(reference)(state)(signal)(state)
I2DVKH
(min) and V
t
I2CF
t
I2CL
t
I2SXKL
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
has only to be met if the device does not stretch the LOW period (t
Output
Parameter
IL
Table 52. I
(max) levels (see
I2SXKL
I2C
clock reference (K) going to the low (L) state or hold time. Also, t
Figure 42. I
CBUS compatible masters
t
I2DXKL
symbolizes I
2
C AC Electrical Specifications (continued)
Figure 41. I
Table
Z
t
I2DVKH
0
= 50 Ω
I
t
51).
2
I2CH
2
2
C bus devices
C.
C Bus AC Timing Diagram
2
C timing (I2) for the time that the data with respect to the start condition
t
2
I2SXKL
2
C bus.
C AC Test Load
Sr
for outputs. For example, t
Symbol
t
t
t
I2PVKH
I2KHDX
(first two letters of functional block)(signal)(state) (reference)(state)
I2DXKL
t
V
I2SVKH
V
NH
NL
t
I2KHKL
R
L
1
= 50 Ω
0.1 × OV
0.2 × OV
Min
0.6
1.3
IHmin
t
0
I2PVKH
I2C
OVDD/2
I2CL
DD
DD
of the SCL signal) to bridge the
clock reference (K) going to the
t
I2CR
) of the SCL signal.
I2DVKH
Max
0.9
I2PVKH
P
symbolizes I
t
I2CF
symbolizes I
Unit
μs
μs
μs
V
V
S
2
I2C
C timing
Notes
clock
2, 3
2
I
C
63
2
C

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