參數(shù)資料
型號： XR16L784
廠商： Exar Corporation
英文描述： HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
中文描述： 高性能2.97V至5.5V UART的四
文件頁數(shù)： 50/52頁
文件大?。?/td> 625K
代理商： XR16L784
XR16L784
HIGH PERFORMANCE 5V AND 3.3V QUAD UART
REV. P1.2.0
á
PRELIMINARY
I
TABLE OF CONTENTS
GENERAL DESCRIPTION ............................................................................................... 1
A
PPLICATIONS
........................................................................................................................................... 1
F
EATURES
................................................................................................................................................. 1
Figure 1. Block Diagram ....................................................................................................................... 1
Figure 2. Pin Out Assignment .............................................................................................................. 2
ORDERING
INFORMATION
............................................................................................................................ 2
PIN DESCRIPTIONS ....................................................................................................... 3
1.0 DESCRIPTION ........................................................................................................................................ 6
2.0 Functional Descriptions ........................................................................................................................ 6
2.1 D
EVICE
R
ESET
.............................................................................................................................................................. 6
2.1.1 Hardware Reset ....................................................................................................................... 6
2.1.2 Software Reset ......................................................................................................................... 6
2.2 UART C
HANNEL
S
ELECTION
......................................................................................................................................... 6
2.3 S
IMULTANEOUS
W
RITE
TO
A
LL
C
HANNELS
..................................................................................................................... 6
T
ABLE
1: UART C
HANNEL
S
ELECTION
...................................................................................................... 6
2.4 INT# O
UPUT
................................................................................................................................................................ 7
2.5 CRYSTAL OSCILLATOR / BUFFER .......................................................................................................................... 7
T
ABLE
2: INT# P
IN
O
PERATION
FOR
T
RANSMITTER
................................................................................... 7
T
ABLE
3: INT# P
IN
O
PERATION
F
OR
R
ECEIVER
......................................................................................... 7
Figure 3. Typical oscillator connections ............................................................................................. 7
2.6 P
ROGRAMMABLE
B
AUD
R
ATE
G
ENERATOR
.................................................................................................................... 8
Figure 4. External Clock Connection for Extended Data Rate .......................................................... 8
Figure 5. Baud Rate Generator ............................................................................................................. 8
2.7 T
RANSMITTER
............................................................................................................................................................... 9
2.7.1 Transmit Holding Register (THR) - Write Only ......................................................................... 9
2.7.2 Transmitter Operation in non-FIFO Mode ................................................................................ 9
T
ABLE
4: T
YPICAL
DATA
RATES
WITH
A
14.7456 MH
Z
CRYSTAL
OR
EXTERNAL
CLOCK
AT
16X S
AMPLING
... 9
2.7.3 Transmitter Operation in FIFO Mode ..................................................................................... 10
2.8 R
ECEIVER
................................................................................................................................................................... 10
Figure 6. Transmitter Operation in non-FIFO Mode ......................................................................... 10
Figure 7. Transmitter Operation in FIFO and Flow Control Mode ................................................... 10
2.8.1 Receive Holding Register (RHR) - Read-Only ....................................................................... 11
Figure 8. Receiver Operation in non-FIFO Mode .............................................................................. 11
Figure 9. Receiver Operation in FIFO and Auto RTS Flow Control Mode ...................................... 11
2.9 THR
AND
RHR R
EGISTER
L
OCATIONS
........................................................................................................................ 12
2.10 A
UTOMATIC
RTS/DTR H
ARDWARE
F
LOW
C
ONTROL
O
PERATION
................................................................................ 12
T
ABLE
5: T
RANSMIT
AND
R
ECEIVE
D
ATA
R
EGISTER
, 16C550
COMPATIBLE
.............................................. 12
2.10.1 Auto CTS/DSR Flow Control ................................................................................................ 13
Figure 10. Auto RTS/DTR and CTS/DSR Flow Control Operation ................................................... 13
2.11 A
UTO
X
ON
/X
OFF
(S
OFTWARE
) F
LOW
C
ONTROL
......................................................................................................... 14
2.12 S
PECIAL
C
HARACTER
D
ETECT
.................................................................................................................................. 14
T
ABLE
6: A
UTO
X
ON
/X
OFF
(S
OFTWARE
) F
LOW
C
ONTROL
........................................................................ 14
2.13 A
UTO
RS485 H
ALF
-
DUPLEX
C
ONTROL
..................................................................................................................... 15
2.14 I
NFRARED
M
ODE
....................................................................................................................................................... 15
Figure 11. Infrared Transmit Data Encoding and Receive Data Decoding ..................................... 16
2.15 S
LEEP
M
ODE
WITH
A
UTO
W
AKE
-U
P
......................................................................................................................... 17
2.16 I
NTERNAL
L
OOPBACK
................................................................................................................................................ 18
Figure 12. Internal Loop Back ............................................................................................................ 18
3.0 XR16L784 REGISTERS ........................................................................................................................ 19
3.1
DEVICE CONFIGURATION REGISTER SET ........................................................................................ 19
Figure 13. The XR16L784 Registers Mapping ................................................................................... 19
T
ABLE
7: XR16L784 R
EGISTER
S
ETS
..................................................................................................... 19
T
ABLE
8: D
EVICE
C
ONFIGURATION
R
EGISTERS
........................................................................................ 20
相關PDF資料
PDF描述
XR16L78464-TQFP HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784CV HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784IV HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L788 HIGH PERFORMANCE OCTAL UART
XR16L788CQ HIGH PERFORMANCE OCTAL UART
相關代理商/技術參數(shù)
參數(shù)描述
XR16L784_05 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784_08 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L78464-TQFP 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784CV 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
XR16L784CV-0A-EVB 功能描述:UART 接口集成電路 Supports L784 64 ld TQFP, ISA Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*