XR20M1280L32-0B Datasheet, PDF (59/63 Pages) Exar Corporation – I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS

REV. 1.0.0
XR20M1280
I2C/SPI UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
FIGURE 34. READ GPIOLVL TO CLEAR GPIO INT
CS#
SCLK
SI
R/W A3 A2 A1 A0 CH1 CH0 X
SO
IRQ#
FIGURE 35. READ RHR TO CLEAR RX INT
CS#
D7 D6 D5 D4 D3 D2 D1 D0
TD13
SCLK
SI
R/W A3 A2 A1 A0 CH1 CH0 X
SO
IRQ#
D7 D6 D5 D4 D3 D2 D1 D0
TD14
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