Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

XR19L210IL40 Datasheet(PDF) 10 Page - Exar Corporation

Part # XR19L210IL40
Description  SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
Download  43 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XR19L210IL40 Datasheet(HTML) 10 Page - Exar Corporation

Back Button XR19L210IL40 Datasheet HTML 6Page - Exar Corporation XR19L210IL40 Datasheet HTML 7Page - Exar Corporation XR19L210IL40 Datasheet HTML 8Page - Exar Corporation XR19L210IL40 Datasheet HTML 9Page - Exar Corporation XR19L210IL40 Datasheet HTML 10Page - Exar Corporation XR19L210IL40 Datasheet HTML 11Page - Exar Corporation XR19L210IL40 Datasheet HTML 12Page - Exar Corporation XR19L210IL40 Datasheet HTML 13Page - Exar Corporation XR19L210IL40 Datasheet HTML 14Page - Exar Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 43 page
background image
XR19L210
PRELIMINARY
10
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. P1.0.2
2.10.2
Transmitter Operation in non-FIFO Mode
The host loads transmit data to THR one character at a time. The THR empty flag (LSR bit-5) is set when the
data byte is transferred to TSR. THR flag can generate a transmit empty interrupt (ISR bit-1) when it is enabled
by IER bit-1. The TSR flag (LSR bit-6) is set when TSR becomes completely empty.
2.10.3
Transmitter Operation in FIFO Mode
The host may fill the transmit FIFO with up to 16 bytes of transmit data. The THR empty flag (LSR bit-5) is set
whenever the FIFO is empty. The THR empty flag can generate a transmit empty interrupt (ISR bit-1) when the
amount of data in the FIFO falls below its programmed trigger level. The transmit empty interrupt is enabled by
IER bit-1. The Transmitter Empty Flag (LSR bit-6) is set when both the TSR and the FIFO become empty.
2.11
RECEIVER
The receiver section contains an 8-bit Receive Shift Register (RSR) and 16 bytes of FIFO which includes a
byte-wide Receive Holding Register (RHR). The RSR uses the 16X clock for timing. On the rising edge of RXD
(or falling edge of RX) of a start or a false start bit, an internal receiver counter starts counting at the 16X clock
rate. After 8 clocks the start bit period should be at the center of the start bit. At this time the start bit is sampled
and if it is still LOW it is validated as a start bit. Evaluating the start bit in this manner prevents the receiver from
assembling a false character. Each of the data, parity and stop bits is sampled at the middle of the bit to
prevent false framing. If there were any error(s), they are reported in the LSR register bits 2-4. Upon unloading
the receive data byte from RHR, the receive FIFO pointer is bumped and the error tags are immediately
updated to reflect the status of the data byte in RHR register. RHR can generate a receive data ready interrupt
FIGURE 6. TRANSMITTER OPERATION IN NON-FIFO MODE
FIGURE 7. TRANSMITTER OPERATION IN FIFO AND FLOW CONTROL MODE
Transmit
Holding
Register
(THR)
Transmit Shift Register (TSR)
Data
Byte
L
S
B
M
S
B
THR Interrupt (ISR bit-1)
Enabled by IER bit-1
TXNOFIFO1
16X Clock
Transm it Data Shift Register
(TSR)
Transm it
Data Byte
Transm it
FIFO
16X Clock
Auto CTS Flow Control (CTS# pin)
Auto Software Flow Control
Flow Control Characters
(Xoff1,2 and Xon1,2 Reg.)
TXF IF O 1
THR Interrupt (ISR bit-1):
FIFO is Enabled by FCR bit-0=1
- W hen the TX FIFO falls below the
program m ed Trigger Level, and
- W hen the TX FIFO becom es em pty.


Similar Part No. - XR19L210IL40

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XR19L210IL40 EXAR-XR19L210IL40 Datasheet
786Kb / 43P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
More results

Similar Description - XR19L210IL40

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XR19L200 EXAR-XR19L200 Datasheet
726Kb / 40P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L200 EXAR-XR19L200_07 Datasheet
734Kb / 40P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L210 EXAR-XR19L210_07 Datasheet
786Kb / 43P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L220 EXAR-XR19L220_07 Datasheet
796Kb / 43P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L220 EXAR-XR19L220 Datasheet
789Kb / 43P
   SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L202IL48-0B EXAR-XR19L202IL48-0B Datasheet
960Kb / 50P
   TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L202 EXAR-XR19L202 Datasheet
942Kb / 50P
   TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L222 EXAR-XR19L222 Datasheet
997Kb / 53P
   TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L212 EXAR-XR19L212 Datasheet
980Kb / 52P
   TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L400 EXAR-XR19L400 Datasheet
929Kb / 45P
   SINGLE CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com