XR18910 Datasheet, PDF (5/19 Pages) Exar Corporation – 8:1 Sensor Interface Analog Front End

REV. 1.0.0
XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEV^XE^RL¹S⁸H⁹IF¹T⁰ERS
Electrical Characteristics (Continued)
FIGURE 22. I²C-BUS TIMING DIAGRAM
Protocol
SCL
SDA
START
condition
(S)
Bit 7
MSB
(A7)
T_SU;STA
T_LOW T_HIGH
Bit 6
(A6)
1/F_SCL
T_F
T_R
T_BUF
Bit 0
LSB
(R/W)
Acknowledge
(A)
STOP
condition
(P)
T_SP
T_HD;STA
FIGURE 23. WRITE TO OUTPUT
T_SU;DAT
T_HD;DAT
T_VD;DAT
Figure 3. I²C Bus Timing Diagram
T_VD;ACK
T_SU;STO
SDA
GPIOn
SLAVE
ADDRESS
W A GPIOLVL REG. A
DATA
A
T_D1
REV1A
5/19