MPC8541CPXAJD View Datasheet(PDF) - Freescale Semiconductor
Part Name
Description
MFG CO.
MPC8541CPXAJD
Freescale Semiconductor
'MPC8541CPXAJD' PDF : 84 Pages View PDF
CPM
The following two tables are examples of I2C AC parameters at I2C clock value of 100k and 400k
respectively.
Table 36. CPM I2C Timing (fSCL=100 kHz)
Characteristic
SCL clock frequency (slave)
SCL clock frequency (master)
Bus free time between transmissions
Low period of SCL
High period of SCL
Start condition setup time
Start condition hold time
Data hold time
Data setup time
SDA/SCL rise time
SDA/SCL fall time (master)
Stop condition setup time
Expression
fSCL
fSCL
tSDHDL
tSCLCH
tSCHCL
tSCHDL
tSDLCL
tSCLDX
tSDVCH
tSRISE
tSFALL
tSCHDH
Frequency = 100 kHz
Unit
Min
Max
—
100
kHz
—
100
kHz
4.7
—
μs
4.7
—
μs
4
—
μs
2
—
μs
3
—
μs
2
—
μs
3
—
μs
—
1
μs
—
303
ns
2
—
μs
Table 37. CPM I2C Timing (fSCL=400 kHz)
Characteristic
SCL clock frequency (slave)
SCL clock frequency (master)
Bus free time between transmissions
Low period of SCL
High period of SCL
Start condition setup time
Start condition hold time
Data hold time
Data setup time
SDA/SCL rise time
SDA/SCL fall time
Stop condition setup time
Expression
fSCL
fSCL
tSDHDL
tSCLCH
tSCHCL
tSCHDL
tSDLCL
tSCLDX
tSDVCH
tSRISE
tSFALL
tSCHDH
Frequency = 400 kHz
Min
Max
—
400
—
400
1.2
—
1.2
—
1
—
420
—
630
—
420
—
630
—
—
250
—
75
420
—
Unit
kHz
kHz
μs
μs
μs
ns
ns
ns
ns
ns
ns
ns
MPC8541E PowerQUICC™ III Integrated Communications Processor Hardware Specification, Rev. 4.2
Freescale Semiconductor
47
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