10
8
4
3
7
12
5
6
14
2
3
13
Stop
Start
Repeated
Start
Stop
I2Cx_SDA
I2Cx_SCL
1
11
9
OMAP-L137
www.ti.com
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
Table 6-92. I2C Switching Characteristics
(1)
No.
PARAMETER
MIN
MAX
UNIT
Standard Mode
10
16
t
c(SCL)
Cycle time, I2Cx_SCL
μ
s
Fast Mode
2.5
Standard Mode
4.7
17
t
su(SCLH-SDAL)
Setup time, I2Cx_SCL high before I2Cx_SDA low
μ
s
Fast Mode
0.6
Standard Mode
4
18
t
h(SDAL-SCLL)
Hold time, I2Cx_SCL low after I2Cx_SDA low
μ
s
Fast Mode
0.6
Standard Mode
4.7
19
t
w(SCLL)
Pulse duration, I2Cx_SCL low
μ
s
Fast Mode
1.3
Standard Mode
4
20
t
w(SCLH)
Pulse duration, I2Cx_SCL high
μ
s
Fast Mode
0.6
Standard Mode
250
21
t
su(SDAV-SCLH)
Setup time, I2Cx_SDA valid before I2Cx_SCL high
ns
Fast Mode
100
Standard Mode
0
22
t
h(SCLL-SDAV)
Hold time, I2Cx_SDA valid after I2Cx_SCL low
μ
s
Fast Mode
0
0.9
Standard Mode
4.7
23
t
w(SDAH)
Pulse duration, I2Cx_SDA high
μ
s
Fast Mode
1.3
Standard Mode
4
28
t
su(SCLH-SDAH)
Setup time, I2Cx_SCL high before I2Cx_SDA high
μ
s
Fast Mode
0.6
(1)
I2C must be configured correctly to meet the timings in
Table 6-92
.
Figure 6-63. I2C Receive Timings
Copyright © 2008–2014, Texas Instruments Incorporated
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