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XR16M2550
修订版1.0.2
具有16字节FIFO高性能，低电压DUART
4.4.1中断的产生： ........................................................................................................................................ 25
4.4.2中断的清除： ............................................................................................................................................. 25
T
ABLE
10: I
NTERRUPT
S
环境允许和
P
RIORITY
L
伊维尔基尼
..................................................................................................................... 26
4.5 FIFO控制寄存器（ FCR ） - 只写....................................... ................................................. 26
T
ABLE
11: T
RANSMIT和
R
ECEIVE
FIFO牛逼
索具
L
伊维尔基尼
S
选举
............................................................................................ 27
4.6线控制寄存器（ LCR ） - 读/写....................................... ................................................. 27
T
ABLE
12: P
元数选择
........................................................................................................................................................ 29
4.7调制解调器控制寄存器（ MCR ）或通用输出控制 - 读/写。
4.8线状态寄存器（ LSR ） - 只读........................................ .................................................. ....
4.9 MODEM状态寄存器（ MSR ） - 只读........................................ ...............................................
4.10便笺寄存器（ SPR ） - 读/写....................................... ................................................
4.11波特率发生器寄存器（ DLL ， DLM和DLD ） - 读/写.................................. .....
29
30
31
32
32
T
ABLE
13: S
AMPLING
R
吃
S
ELECT
............................................................................................................................................... 32
4.12设备识别寄存器（ DVID ） - 只读........................................ ............................... 32
4.13器件版本寄存器（ DREV ） - 只读........................................ ......................................... 33
4.14增强功能寄存器（ EFR ） ........................................... .................................................. ....... 33
T
ABLE
14: S
OFTWARE
F
低
C
ONTROL
F
受膏
........................................................................................................................ 33
4.14.1软件流控制寄存器（ XOFF1 ， XOFF2 ， XON1 ， XON2 ） - 读/写.............................. 34
T
ABLE
15 ： UART复位条件的A和B通道........................................ .................................................. 35 ..
5.0电气特性.....................................................................................................
A
BSOLUTE
M
AXIMUM
R
ATINGS
....................................................................................................................
T
YPICAL
P
ACKAGE
T
有源冰箱
R
ESISTANCE
D
ATA
(M
误差的ARGIN
: ± 15%)..............................................
DC ê
LECTRICAL
C
极特
.............................................................................................................
AC ê
LECTRICAL
C
极特
.............................................................................................................
36
36
36
36
37
F
IGURE
13. C
LOCK
T
即时通信
............................................................................................................................................................. 38
F
IGURE
14. M
ODEM
I
NPUT
/O
安输出
T
即时通信
F
OR
C
HANNELS
一& B ............................................... .................................................. 38
F
IGURE
15. D
ATA
B
US
R
EAD
T
即时通信
.............................................................................................................................................. 39
F
IGURE
16. D
ATA
B
US
W
RITE
T
即时通信
............................................................................................................................................ 39
F
IGURE
17. R
ECEIVE
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[N
ON
-FIFO M
ODE
]
为
C
HANNELS
一& B ............................................... .......... 40
F
IGURE
18. T
RANSMIT
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[N
ON
-FIFO M
ODE
]
为
C
HANNELS
一& B ............................................... ........ 40
F
IGURE
19. R
ECEIVE
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[ FIFO M
ODE
， DMA
ISABLED
]
为
C
HANNELS
一& B ........................................ 41
F
IGURE
20. R
ECEIVE
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[ FIFO M
ODE
， DMA ê
NABLED
]
为
C
HANNELS
一& B ......................................... 41
F
IGURE
21. T
RANSMIT
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[ FIFO M
ODE
， DMA M
ODE
D
ISABLED
]
为
C
HANNELS
一& B ........................... 42
F
IGURE
22. T
RANSMIT
R
EADY
＆放大器;我
NTERRUPT
T
即时通信
[ FIFO M
ODE
， DMA M
ODE
E
NABLED
]
为
C
HANNELS
一& B ............................ 42
P
ACKAGE
D
IMENSIONS
(48
引脚TQFP
- 7
X
7
X
1
mm
) .................................................................................. 43
P
ACKAGE
D
IMENSIONS
(32
针
QFN - 5
X
5
X
0.9
mm
) ............................................................................... 44
R
EVISION
H
ISTORY
..................................................................................................................................... 45
目录.....................................................................................................
I
II
