xr20v2170 Exar Corporation, xr20v2170 Datasheet - Page 43

• Manufacturer Part Number: xr20v2170
• Description: I2c/spi Uart With 64-byte Fifo And Rs232 Transceiver
• Manufacturer: Exar Corporation

REV. 1.0.0
F
F
IGURE
IGURE
GPIOn
IRQ#
SDA
MODEM pin
IRQ#
SDA
19. M
20. GPIO P
ODEM
ADDRESS
SLAVE
ADDRESS
I
IN
SLAVE
NPUT
I
NTERRUPT
P
IN
W
I
NTERRUPT
W
T
A
D2
A
IOSTATE REG.
MSR REGISTER
T
I2C/SPI UART WITH 64-BYTE FIFO AND RS232 TRANSCEIVER
D4
ACK from slave
A
43
A
S
S
ADDRESS
ADDRESS
SLAVE
SLAVE
ACK from slave
R
R
A
A
T
T
DATA
D5
D3
DATA
ACK from master
XR20V2170
A
A
P