XR16L651CM EXAR [Exar Corporation], XR16L651CM Datasheet - Page 56

• Manufacturer Part Number: XR16L651CM
• Description: 2.25V TO 5.5V UART WITH 32-BYTE FIFO
• Manufacturer: EXAR [Exar Corporation]

XR16L651
2.25V TO 5.5V DUART WITH 32-BYTE FIFO
ELECTRICAL CHARACTERISTICS ................................................................................39
TABLE OF CONTENTS ................................................................................................................................. I
T
T
T
T
T
T
T
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
4.2 T
4.3 I
4.4 I
4.5 FIFO C
4.6 L
4.7 M
4.8 L
4.9 E
4.10 M
4.11 I
4.12 S
4.13 B
4.14 D
4.15 D
4.16 E
4.17 S
DC E
AC E
TA=0
P
R
ACKAGE
EVISION
9: I
10: T
11: P
12: S
13: UART RESET CONDITIONS ............................................................................................................................................. 38
14: XR16L651 VOL S
15: XR16L651 VOH S
4.3.1 IER versus Receive FIFO Interrupt Mode Operation................................................................................ 25
4.3.2 IER versus Receive/Transmit FIFO Polled Mode Operation .................................................................... 26
4.4.1 Interrupt Generation: ................................................................................................................................ 27
4.4.2 Interrupt Clearing:..................................................................................................................................... 27
NTERRUPT
NTERRUPT
16. C
17. M
18. 16 M
19. 16 M
20. 16 M
21. 16 M
22. 68 M
23. 68 M
24. D
25. D
26. R
27. T
28. R
29. R
30. T
31. T
INE
INE
RANSMIT
XTRA
LECTRICAL
LECTRICAL
O TO
ODEM
NFRARED
NTERRUPT
CRATCH
AUD
NHANCED
OFTWARE
EVICE
EVICE
ODEM
RANSMIT AND
ARITY SELECTION
OFTWARE
C
S
RANSMIT
RANSMIT
RANSMIT
LOCK
ATA
ATA
ECEIVE
ECEIVE
ECEIVE
ODEM
H
D
TATUS
ONTROL
70
F
R
ONTROL
IMENSIONS
ISTORY
ODE
ODE
ODE
ODE
ODE
ODE
C
EATURE
B
B
ATE
I
R
S
O
ONTROL
DENTIFICATION
T
US
US
H
I
EVISION
TATUS
IMING
NPUT
S
C (-40
P
R
R
R
E
S
T
(I
(I
(I
(I
(M
(M
OLDING
F
R
R
R
OURCE AND
C
C
R
W
EADY
EADY
EADY
F
AD
F
WHERE APPLICABLE
NABLE
TATUS
RANSMIT
NTEL
NTEL
NTEL
NTEL
R
G
LOW
EADY
EADY
EADY
EAD
OTOROLA
OTOROLA
EATURE
HARACTERISTICS
LOW
HARACTERISTICS
RITE
....................................................................................................................................54
R
R
EGISTER
/O
ENERATOR
.................................................................................................................................................................... 44
R
R
ECEIVE
EGISTER
R
) D
) D
) D
) D
UTPUT
C
& I
& I
& I
T
................................................................................................................................................................ 30
O TO
EGISTER
R
EGISTER
INK
OURCE
R
T
& I
& I
& I
EGISTER
ONTROL
IMING IN
(48
R
C
ATA
ATA
ATA
ATA
IMING IN
EGISTER
NTERRUPT
NTERRUPT
NTERRUPT
R
R
R
EGISTER
NTERRUPT
NTERRUPT
NTERRUPT
EGISTER
ONTROL
C
) D
) D
EGISTER
EGISTER
EGISTER
P
P
URRENT
R
FIFO T
T
B
B
B
B
+85
PIN TQFP
RIORITY
ULSE
IMING
ATA
ATA
(LSR) - R
US
US
US
US
EGISTER
C
R
F
URRENT
PC M
(LCR) - R
D
PC M
(FCR) - W
(SPR) ...................................................................................................... 35
EGISTER
UNCTIONS
R
W
R
W
O
(XFR) - W
B
B
EAD
EAD
IVISORS
............................................................................................................................................ 45
T
T
T
RIGGER
(MSR) - R
RITE
RITE
C
US
US
(MCR)
C
W
T
T
T
R
IMING
IMING
IMING
(DREV) - R
L
ODE
(IER) - R
(ISR) - R
HART
IMING
IMING
IMING
(THR) - W
............................................................................................................42
FOR INDUSTRIAL GRADE PACKAGE
EVEL
ODE
EGISTERS
R
W
...........................................................................................................39
IDTH
T
T
42
C
T
T
- 7
EAD
IMING WITH
IMING USING
RITE
(EFR) ............................................................................................ 35
IMING WITH
IMING USING
HART
EAD
................................................................................................................................. 48
[N
[FIFO M
[FIFO M
................................................................................................................................ 49
............................................................................................................................... 28
L
............................................................................................................................... 36
............................................................................................................................... 40
[N
[FIFO M
[FIFO M
(DVID) - R
EAD
X
EVEL
ON
T
(DLL
OR
C
T
ON
RITE
IMING
7
RITE
......................................................................................................................... 41
IMING
ONTROL
-FIFO M
O
EAD
-FIFO M
EAD
EAD
/W
X
G
NLY
S
(XOFF1, XOFF2, XON1, XON2) - R
ODE
ODE
RITE
-O
ELECTION WITH AUTO
EAD
1
ENERAL
.................................................................................................................. 47
AS#
AND
ODE
ODE
RITE
AS#
................................................................................................................ 48
O
AS#......................................................................................................... 46
O
/W
-O
AS# ....................................................................................................... 47
MM
NLY
, DMA D
, DMA E
NLY
..................................................................................... 32
NLY
ODE
, DMA M
, DMA M
-O
TIED TO
NLY
O
RITE
EAD
ODE
R
DLM) - R
)..................................................................................53
TIED TO
................................................................................. 29
NLY
NLY
II
EGISTER
] ................................................................................................... 49
............................................................................... 28
.............................................................................. 33
] ................................................................................................. 50
P
............................................................................. 34
............................................................................ 27
O
ISABLED
NABLED
........................................................................... 25
URPOSE
GND..................................................................................... 45
ODE
ODE
......................................................................... 25
NLY
......................................................................... 35
GND ................................................................................... 46
EAD
D
E
(IRPW) - W
.................................................................. 35
]................................................................................... 51
].................................................................................. 50
ISABLED
NABLED
RTS
/W
O
UTPUTS
HYSTERESIS
RITE
), V
] ...................................................................... 52
] ..................................................................... 51
CC IS
.................................................. 35
RITE
C
ONTROL
....................................................... 29
2.90V
O
NLY
EAD
TO
- R
............................. 35
/W
5.5V, 70
EAD
RITE
/W
áç
áç
áç
áç
RITE
............... 37
P
F L
........ 31
REV. 1.3.0
OAD