M52277EVB Freescale Semiconductor, M52277EVB Datasheet - Page 37

• Manufacturer Part Number: M52277EVB
• Description: BOARD DEMO FOR MCF5227
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of M52277EVB

• Contents: Board
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V2
• Silicon Core Number: MCF52
• Silicon Family Name: MCF5227x
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• For Use With/related Products: MCF52277
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 29
Figure 24
Freescale Semiconductor
1
2
3
I2C_SDA
Num
lists specifications for the I
Num
I2C_SCL
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
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
are minimum values.
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.
shows timing for the values in
I1
I2
I3
I4
I5
I6
I7
I8
I9
I5
I6
I7
I8
I9
1
1
2
1
3
1
1
1
1
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
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 28. I
Table 29. I
I1
2
C Input Timing Specifications between SCL and SDA (continued)
MCF5227x ColdFire
2
2
C output timing parameters shown in
C Output Timing Specifications between SCL and SDA
I2
Table 29
Figure 24. I
Characteristic
Characteristic
IH
IH
IL
= 2.4 V to V
= 2.4 V to V
I4
= 0.5 V to V
and
®
Table
2
Microprocessor Data Sheet, Rev. 8
C Input/Output Timings
I6
28.
IL
IL
IH
= 0.5 V)
= 0.5 V)
= 2.4 V)
I7
Figure
Table
24.
I8
29. The I
I5
Min
Min
10
10
20
10
—
—
—
4
0
2
2
6
7
2
2
I3
C interface is designed
Electrical Characteristics
Max
Max
—
—
—
—
—
—
—
—
—
—
—
—
1
3
Table 29
Unit
Unit
I9
t
t
t
t
t
t
t
t
t
t
ms
ns
µs
ns
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
cyc
37