XR20V2170 Datasheet, PDF (44/52 Pages) Exar Corporation – I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER

XR20V2170
I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
REV. 1.0.0
FIGURE 21. RECEIVE INTERRUPT
Start bit
Stop bit
Next
start
bit
RX
D0
D1
D2
D3
D4
D5
D6
D7
TD6
IRQ#
FIGURE 22. RECEIVE INTERRUPT CLEAR
SDA
SLAVE
ADDRESS
WA
RHR
AS
SLAVE
ADDRESS
RA
DATA
AP
IRQ#
TD7
FIGURE 23. TRANSMIT INTERRUPT CLEAR
SDA
SLAVE
ADDRESS
W A THR REGISTER A
DATA
A
DATA
A
IRQ#
TD8
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