MC9328MX21S_08 Datasheet, PDF (83/88 Pages) Freescale Semiconductor, Inc – i.MX family of microprocessors 266 MHz

Specifications
3.20 I²C Module
The I²C communication protocol consists of seven elements: START, Data Source/Recipient, Data
Direction, Slave Acknowledge, Data, Data Acknowledge, and STOP.
SDA
3
5
4
SCL
1
2
6
Figure 72. Definition of Bus Timing for I²C
Table 39. I²C Bus Timing Parameters
Ref
No.
Parameter
SCL Clock Frequency
1 Hold time (repeated) START condition
2 Data hold time
3 Data setup time
4 HIGH period of the SCL clock
5 LOW period of the SCL clock
6 Setup time for STOP condition
1.8 V ± 0.1 V
3.0 V ± 0.3 V
Unit
Minimum Maximum Minimum Maximum
0
100
0
100
kHz
114.8
–
111.1
–
ns
0
69.7
0
72.3
ns
3.1
–
1.76
–
ns
69.7
–
68.3
–
ns
336.4
–
335.1
–
ns
110.5
–
111.1
–
ns
MC9328MX21S Technical Data, Rev. 1.3
Freescale Semiconductor
83