82P33741 Datasheet, PDF (31/61 Pages) Integrated Circuit Systems – Differential reference inputs

82P33741 Datasheet
5
MICROPROCESSOR INTERFACE
The microprocessor interface provides access to read and write the
registers in the device. The microprocessor interface supports I2C.
5.1 I2C SLAVE MODE
5.1.1
I2C DEVICE ADDRESS
The default value for the higher 4-bit address is 4’b1010, the 2-bit
address is set by pins I2C_AD2, I2C_AD1, and the lower bit address
I2C_AD0 is used to address the configuration of DPLLs/APLL1/2 and
APLL3.
5.1.2
I2C BUS TIMING
Figure 13 shows the definition of I2C bus timing.
SDA
tf
SCL
S
tSU: DAT
tf
tLOW
tr
tHD: STA
tHD: STA
tHD: DAT
tHIGH
tSU: STA
Sr
Figure 13. Definition of I2C Bus Timing
tSP
tr
tBUF
tSU: STO
P
S
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31
Revision 6, July 21, 2016