mpc5645s Freescale Semiconductor, Inc, mpc5645s Datasheet - Page 124

no-image

mpc5645s

Manufacturer Part Number
mpc5645s
Description
Mpc5645s Microcontroller Data Sheet
Manufacturer
Freescale Semiconductor, Inc
Datasheet
Electrical characteristics
4.18.11 I
1
2
124
1
2
3
4
Num
Num
1
2
3
4
5
6
7
8
9
1
2
4
6
7
8
9
Parameter values guaranteed by design.
Inter Peripheral Clock is the clock at which the I
Programming IBFD (I
I
affected by the prescale and division values programmed in IFDR.
Parameter values guaranteed by design.
Inter Peripheral Clock is the clock at which the I
Because SCL and SDA are open-drain-type outputs, which the processor can only actively drive low, the time SCL or SDA
takes to reach a high level depends on external signal capacitance and pull-up resistor values.
2
1
1
4
1
1
1
1
1
1
C interface is designed to scale the data transition time, moving it to the middle of the SCL low period. The actual position is
Symbol
Symbol
CC
CC
CC
CC
CC
CC
CC
2
CC
CC
CC
CC
CC
CC
CC
CC
CC
C timing
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
C
D Start condition hold time
D Clock low time
D Data hold time
D Clock high time
D Data setup time
D Start condition setup time (for repeated
D Stop condition setup time
C
D Start condition hold time
D Clock low time
D SCL/SDA rise time
D Data hold time
D SCL/SDA fall time
D Clock high time
D Data setup time
D Start condition setup time (for repeated
D Stop condition setup time
2
C bus Frequency Divider) with the maximum frequency results in the minimum output timings listed. The
start condition only)
start condition only)
Table 69. I
Table 68. I
Characteristic
Characteristic
MPC5645S Microcontroller Data Sheet, Rev. 6
2
2
C output timing specifications—SCL and SDA
C input timing specifications—SCL and SDA
2
2
C peripheral is working in the device
C peripheral is working in the device
Min. Value
Min. Value
10
10
10
20
0.0
0.0
6
7
2
2
8
4
2
2
Max. Value
Max. Value
99.6
99.5
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
IP-Bus Cycle
Freescale Semiconductor
Unit
Unit
ns
ns
ns
ns
2
2
2
2
2
3
2
2
2
2
2
2
SpecID
SpecID
A12.10
A12.11
A12.12
A12.13
A12.14
A12.15
A12.16
A12.1
A12.2
A12.3
A12.4
A12.5
A12.6
A12.7
A12.8
A12.9

Related parts for mpc5645s