xr20v2172 Exar Corporation, xr20v2172 Datasheet - Page 45
xr20v2172
Manufacturer Part Number
xr20v2172
Description
Two Channel I2c/spi Uart With 64-byte Fifo And Rs232 Transceiver
Manufacturer
Exar Corporation
Datasheet
1.XR20V2172.pdf
(53 pages)
- Current page: 45 of 53
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REV. 1.0.0
F
F
F
IGURE
IGURE
IGURE
RX
IRQ#
IRQ#
SDA
IRQ#
SDA
21. R
22. R
23. T
RANSMIT
ECEIVE
ECEIVE
ADDRESS
SLAVE
Start bit
ADDRESS
I
I
SLAVE
NTERRUPT
NTERRUPT
I
NTERRUPT
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
D0
W
W
C
C
A
LEAR
LEAR
D1
A
THR REGISTER
RHR
D2
D3
A
A
45
S
D4
DATA
ADDRESS
SLAVE
D5
A
D6
R
DATA
A
T
D7
D7
DATA
Stop bit
T
A
D8
XR20V2172
T
Next
start
D6
bit
A
P
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