Feature Integration Technology Inc.
Fintek
F15353
reception.
6.8.5 Data Reading
After detecting the start condition from outside, a device code and command are received. If the read/write
at this point, the data read mode is entered. The data output sequence is output from the LSB.
bit is “1”
t
t
SCL
R
t
R
SCL
t
t
SU;STO
t
t
SU;DAT
HD;DAT
HD;STA
SDA IN
VALID DATA
t
DEL;DAT
SDA OUT
Serial Bus Timing Diagram
Figure 9: I2C timing chart
Table 3: Serial Bus Timing
PARAMETER
SYMBOL
t-SCL
MIN
MAX
UNIT
SCL clock period
3
50
50
50
5
uS
nS
nS
nS
nS
ns
Start condition hold time
Stop condition setup-up time
DATA to SCL setup time
DATA to SCL hold time
DATA OUT to SCL delay time
SCL and SDA rise time
SCL and SDA fall time
tHD;SDA
tSU;STO
tSU;DAT
tHD;DAT
tDEL:DATA
tR
200
200
200
nS
nS
tF
6.9 Data Writing
After detecting the start condition from outside, a device code and command are received. If the read/write bit is
“0” at this point, the real-time data write mode or another register write mode is entered.
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