C timing – Digi NS9750 User Manual
Page 845
w w w . d i g i e m b e d d e d . c o m
8 2 1
T i m i n g
I
2
C timing
Note:
All AC characteristics are measured with 10pF, unless otherwise noted.
Table 473 describes the values shown in the I
2
C timing diagram (Figure 128).
Figure 128: I
2
C timing
Standard mode
Fast mode
Parm
Description
Min
Max
Min
Max
Unit
C1
iic_sda to iic_scl START hold time
4.0
0.6
μs
C2
iic_scl low period
4.7
1.3
μs
C3
iic_scl high period
4.7
1.3
μs
C4
iic_scl to iic_sda DATA hold time
0
0
μs
C5
iic_sda to iic_scl DATA setup time
250
100
ns
C6
iic_scl to iic_sda START setup time
4.7
0.6
μs
C7
iic_scl to iic_sda STOP setup time
4.0
0.6
μs
Table 473: I
2
C timing parameters
C4
C6
C7
C1
C2
C5
C3
iic_sda
iic_scl