參數(shù)資料
型號: MPC5200
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 52/80頁
文件大小: 790K
代理商: MPC5200
MPC5200 Data Sheet, Rev. 4
Electrical and Thermal Characteristics
Freescale Semiconductor
52
NOTE
Output timing was specified at a nominal 50 pF load.
Figure 37. Timing Diagram—I
2
C Input/Output
3.3.14 J1850
See the MPC5200 User Manual [1].
Table 41. I
2
C Output Timing Specifications—SCL and SDA
Sym
Description
Min
Max
Units
SpecID
1
1
NOTES:
1
Programming IFDR with the maximum frequency (IFDR=0x20) results in the minimum output timings listed. The
I
2
C interface is designed to scale the data transition time, moving it to the middle of the SCL low period. The actual
position is affected by the prescale and division values programmed in IFDR.
2
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
3
Inter Peripheral Clock is defined in the MPC5200 User Manual [1].
Start condition hold time
6
IP-Bus Cycle
3
A13.8
2
1
Clock low period
10
IP-Bus Cycle
3
A13.9
3
2
SCL/SDA rise time
7.9
ns
A13.10
4
1
Data hold time
7
IP-Bus Cycle
3
A13.11
5
1
SCL/SDA fall time
7.9
ns
A13.12
6
1
Clock high time
10
IP-Bus Cycle
3
A13.13
7
1
Data setup time
2
IP-Bus Cycle
3
A13.14
8
1
Start condition setup time (for repeated start condition
only)
20
IP-Bus Cycle
3
A13.15
9
1
Stop condition setup time
10
IP-Bus Cycle
3
A13.16
1
2
3
4
5
6
7
8
9
SCL
SDA
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