M5373EVB Freescale Semiconductor, M5373EVB Datasheet - Page 30

• Manufacturer Part Number: M5373EVB
• Description: KIT EVAL FOR MCF537X
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MPUr

Specifications of M5373EVB

• Contents: Module and Misc Hardware
• For Use With/related Products: MCF537x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Electrical Characteristics
Table 17
Figure 17
30
I2C_SDA
I2C_SCL
1
2
3
lists specifications for the I
Num
shows timing for the values in
Output numbers depend on the value programmed into the IFDR; an IFDR programmed with the maximum
frequency (IFDR = 0x20) results in minimum output timings as shown in
designed to scale the actual data transition time to move it to the middle of the SCL low period. The actual
position is affected by the prescale and division values programmed into the IFDR; however, the numbers
given in
Because I2C_SCL and I2C_SDA are open-collector-type outputs, which the processor can only actively drive
low, the time I2C_SCL or I2C_SDA take to reach a high level depends on external signal capacitance and
pull-up resistor values.
Specified at a nominal 50-pF load.
I2
I3
I4
I5
I6
I7
I8
I9
I1
1
1
2
1
3
1
1
1
1
Num
I5
I6
I7
I8
I9
Start condition hold time
Clock low period
I2C_SCL/I2C_SDA rise time (V
Data hold time
I2C_SCL/I2C_SDA fall time (V
Clock high time
Data setup time
Start condition setup time (for repeated start condition only)
Stop condition setup time
Table 16. I
Table 17
I1
I2C_SCL/I2C_SDA fall time (V
Clock high time
Data setup time
Start condition setup time (for repeated start condition only)
Stop condition setup time
Table 17. I
are minimum values.
2
C Input Timing Specifications between SCL and SDA (continued)
I2
MCF537x ColdFire
2
2
C Output Timing Specifications between SCL and SDA
C output timing parameters shown in
Table 17
Characteristic
Figure 17. I
Characteristic
I4
IH
IL
= 2.4 V to V
and
= 0.5 V to V
IH
I6
®
= 2.4 V to V
Table
2
Microprocessor Data Sheet, Rev. 4
C Input/Output Timings
16.
IL
I7
IH
= 0.5 V)
= 2.4 V)
IL
= 0.5 V)
Figure
I8
17.
Table
Min
I5
10
10
20
10
—
—
Min
6
7
2
—
4
0
2
2
17. The I
I3
Max
—
Max
—
—
—
1
—
—
—
—
—
—
—
—
3
2
C interface is
Freescale Semiconductor
Units
t
ms
t
t
ns
cyc
cyc
cyc
Units
I9
t
t
t
t
t
t
t
µs
ns
cyc
cyc
cyc
cyc
cyc
cyc
cyc