xr16l651im Exar Corporation, xr16l651im Datasheet - Page 55

• Manufacturer Part Number: xr16l651im
• Description: 2.25v To 5.5v Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

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REV. 1.3.0
GENERAL DESCRIPTION................................................................................................. 1
PIN DESCRIPTIONS ........................................................................................................ 3
1.0 Product Description ................................................................................................................ 7
2.0 FUNCTIONAL DESCRIPTIONS ............................................................................................... 8
3.0 UART CONFIGURATION REGISTERS ................................................................................. 23
4.0 Internal register descriptions .............................................................................................. 25
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áç
F
F
F
F
F
T
F
T
T
F
F
T
F
F
F
F
F
T
T
F
F
T
T
IGURE
IGURE
IGURE
IGURE
IGURE
ABLE
IGURE
ABLE
ABLE
IGURE
IGURE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
ABLE
ABLE
IGURE
IGURE
ABLE
ABLE
F
A
ORDERING INFORMATION
2.1 H
2.2 5-V
2.3 D
2.4 D
2.5 DMA M
2.6 I
2.7 C
2.8 P
2.9 T
2.10 R
2.11 A
2.12 A
2.13 A
2.14 S
2.15 A
2.16 I
2.17 S
2.18 I
4.1 R
EATURES
PPLICATIONS
1: PC M
2: TXRDY#
3: I
4: T
5: A
6: RS485 H
7: XR16L651 UART CONFIGURATION REGISTERS ............................................................................................................. 23
8: UART CONFIGURATION REGISTERS DESCRIPTION. S
2.1.1 PC MODE ................................................................................................................................................ 10
2.9.1 Transmit Holding Register (THR) - Write Only ......................................................................................... 15
2.9.2 Transmitter Operation in non-FIFO Mode ................................................................................................ 15
2.9.3 Transmitter Operation in FIFO Mode ....................................................................................................... 15
2.10.1 Receive Holding Register (RHR) - Read-Only ....................................................................................... 16
NTERRUPT
1. B
2. I
3. XR16L651 I
4. XR16L651 M
5. XR16L651 PC M
6. PC M
7. T
8. B
9. T
10. T
11. R
12. R
13. A
14. I
15. I
RANSMITTER
ROGRAMMABLE
OST
EVICE
EVICE
RYSTAL
ECEIVE
NFRARED
NTERNAL
NTERRUPT
UTOMATIC
UTO
UTO
PECIAL
LEEP
ECEIVER
YPICAL DATA RATES WITH A
UTO
NTEL
OLT
UTO
YPICAL OSCILLATOR CONNECTIONS
RANSMITTER
LOCK
AUD
NFRARED
NTERNAL
RANSMITTER
UTO
ECEIVER
ECEIVER
D
ODE
.................................................................................................................................................. 1
X
, M
CTS F
X
ODE
ATA
ODE
R
T
R
I
RS485 H
ON
M
DENTIFICATION AND
D
RTS
ON
ATE
H
OLERANT
ALF
ESET
O
OTOROLA AND
AND
............................................................................................................................................. 1
IAGRAM
C
ODE
I
/X
NTERFACE
OLDING
O
I
SCILLATOR OR
L
M
NTERFACE IN AN
/X
HARACTER
L
....................................................................................................................................... 12
....................................................................................................................................... 16
B
OFF
T
O
O
-D
UTPUT
G
OOPBACK
...................................................................................................................................... 11
OOP
AND
NTEL
RTS (H
RANSMIT
RXRDY# O
ODE
US
OTOROLA
PERATION IN NON
PERATION IN
ENERATOR
OFF
LOW
O
UPLEX
................................................................................................................................... 14
& W
.................................................................................................................................. 11
O
(S
PERATION IN NON
..................................................................................................................................................................... 1
PERATION IN
CTS F
I
ODE
B
B
NTERFACE
B
ALF
OFTWARE
ACK
(INT, INT#
(S
AUD
............................................................................................................................. 20
R
US
I
C
AKE
O
NPUTS
C
EGISTER
............................................................................................................................. 2
D
I
OFTWARE
ONTROL
N
ARDWARE
-
ONTROL
PC
NTERCONNECTIONS
......................................................................................................................................................... 22
I
B
DUPLEX
NTERCONNECTIONS
-
ATA
LOW
CHIP
US
...................................................................................................................................................... 14
D
UTPUTS IN
R
-
...................................................................................................................... 22
UP
FIFO
MODE
ETECT
ATE
14.7456 MH
) F
E
E
I
NTERCONNECTIONS
E
C
MBEDDED
NCODING AND
A
FIFO
................................................................................................................ 11
I
AND
-FIFO M
LOW
XTERNAL
ONTROL
............................................................................................................................................. 19
NDICATOR
DDRESS
R
AND
............................................................................................................... 8
G
-FIFO M
(RHR) - R
P
............................................................................................................ 17
EVISION
C
) F
) F
IN
ENERATOR
TABLE OF CONTENTS
IRQA) F
...................................................................................................................................... 13
C
FIFO
......................................................................................................... 19
ONTROL
AND
A
ONTROL
O
LOW
LOW
UTO
UT
O
A
ODE
D
Z CRYSTAL OR EXTERNAL CLOCK
F
PPLICATION
PERATION
ECODER AND
ODE
.............................................................................................................................. 2
.............................................................................................................................. 9
AND
LOW
C
............................................................................................................................ 8
RTS F
UNCTIONS
C
R
......................................................................................................................... 16
LOCK
C
.............................................................................................. 11
.............................................................................................. 21
....................................................................................................................... 19
ECEIVE
...................................................................................................................... 15
ONTROL
EAD
DMA M
ONTROL
C
........................................................................................... 19
. ................................................................................................................... 9
ONTROL
......................................................................................... 13
LOW
-O
.............................................................................................................. 18
. ........................................................................................................... 10
..................................................................................... 13
D
.......................................................................................................... 12
NLY
ODE
ATA
I
C
NTERRUPT
ONTROL
I
............................................................................... 18
M
.............................................................................. 17
.................................................................................................. 11
D
ODE
HADED BITS ARE ENABLED WHEN
............................................................................ 25
ECODING
........................................................................................... 15
M
S
ODE
ELECTION
2.25V TO 5.5V DUART WITH 32-BYTE FIFO
................................................................................. 20
............................................................................... 17
.............................................................................. 14
. .................................................................... 10
EFR B
IT
-4=1. .......................... 24
XR16L651