XR21V1414IM48 EXAR [Exar Corporation], XR21V1414IM48 Datasheet - Page 11

• Manufacturer Part Number: XR21V1414IM48
• Description: 4-CH FULL-SPEED USB UART
• Manufacturer: EXAR [Exar Corporation]

REV. 1.0.0
F
IGURE
3. A
UTO
(RXA FIFO
CTSB#
RXA FIFO
Interrupt)
RTSA#
TXB
INTA
RTS
Trigger Reached
Receiver FIFO
Trigger Level
Local UART
Transmitter
Auto CTS
Auto RTS
UARTA
Monitor
AND
Data Starts
Receive
CTS F
Data
Assert RTS# to Begin
1
2
Transmission
Trigger Level
LOW
3
4
RX FIFO
RTSA#
TXA
CTSA#
RXA
C
ON
ONTROL
ON
5
O
PERATION
7
Threshold
RTS High
11
6
8
OFF
Suspend
OFF
RTSB#
CTSB#
RTS Low
Threshold
RXB
TXB
Restart
9
10
11
4-CH FULL-SPEED USB UART
Trigger Reached
Remote UART
ON
Trigger Level
Receiver FIFO
12
Auto CTS
Transmitter
Auto RTS
UARTB
Monitor
ON
Trigger Level
RX FIFO
RTSCTS1
XR21V1414