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10
8
4
3
7
12
5
6
14
2
3
13
Stop Start Repeated
Start
Stop
I2Cx_SDA
I2Cx_SCL
1
11 9
25
23
19
18
22
27
20
21
17
18
28
Stop Start Repeated
Start
Stop
I2Cx_SDA
I2Cx_SCL
16
26 24
TMS320C6727,TMS320C6726,TMS320C6722
Floating-PointDigitalSignalProcessors
SPRS268E–MAY2005–REVISEDJANUARY2007
Table4-35.I2CSwitchingCharacteristics(continued)
NO.PARAMETERMINMAXUNIT
StandardMode4.7
19t
w(SCLL)
Pulseduration,I2Cx_SCLlowµs
FastMode1.3
StandardMode4
20t
w(SCLH)
Pulseduration,I2Cx_SCLhighµs
FastMode0.6
StandardMode250
Setuptime,I2Cx_SDAvalidbeforeI2Cx_SCL
21t
su(SDAV-SCLH)
ns
high
FastMode100
StandardMode0
22t
h(SCLL-SDAV)
Holdtime,I2Cx_SDAvalidafterI2Cx_SCLlowµs
FastMode00.9
StandardMode4.7
23t
w(SDAH)
Pulseduration,I2Cx_SDAhighµs
FastMode1.3
StandardMode4
Setuptime,I2Cx_SCLhighbeforeI2Cx_SDA
28t
su(SCLH-SDAH)
µs
high
FastMode0.6
StandardMode10
Capacitiveloadoneachbuslinefromthis
29C
b
pF
device
FastMode10
Figure4-38.I2CReceiveTimings
Figure4-39.I2CTransmitTimings
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