XR20V2170 Datasheet, PDF (48/52 Pages) Exar Corporation – I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER

XR20V2170
I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
FIGURE 29. READ IOSTATE TO CLEAR GPIO INT
CS#
REV. 1.0.0
SCLK
SI
R/W A3 A2 A1 A0 CH1 CH0 X
SO
IRQ#
FIGURE 30. 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
48