xr16v2652il32 Exar Corporation, xr16v2652il32 Datasheet - Page 48

• Manufacturer Part Number: xr16v2652il32
• Description: High Performance Duart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16V2652
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO
ABSOLUTE MAXIMUM RATINGS.................................................................................. 37
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%) 37
ELECTRICAL CHARACTERISTICS ............................................................................... 37
PACKAGE DIMENSIONS (44 PIN PLCC) ...................................................................... 44
PACKAGE DIMENSIONS (32 PIN QFN - 5 X 5 X 0.9
TABLE OF CONTENTS......................................................................................................
DC E
AC E
R
4.4 INTERRUPT STATUS REGISTER (ISR) - READ-ONLY .................................................................................. 25
4.5 FIFO CONTROL REGISTER (FCR) - WRITE-ONLY......................................................................................... 26
4.6 LINE CONTROL REGISTER (LCR) - READ/WRITE......................................................................................... 27
4.7 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE.. 29
4.8 LINE STATUS REGISTER (LSR) - READ ONLY.............................................................................................. 30
4.9 MODEM STATUS REGISTER (MSR) - READ ONLY ....................................................................................... 31
4.10 SCRATCH PAD REGISTER (SPR) - READ/WRITE ....................................................................................... 32
4.11 BAUD RATE GENERATOR REGISTERS (DLL, DLM AND DLD) - READ/WRITE ....................................... 32
4.12 ALTERNATE FUNCTION REGISTER (AFR) - READ/WRITE ........................................................................ 32
4.13 DEVICE IDENTIFICATION REGISTER (DVID) - READ ONLY....................................................................... 33
4.14 DEVICE REVISION REGISTER (DREV) - READ ONLY ................................................................................. 33
4.15 ENHANCED FEATURE REGISTER (EFR) ..................................................................................................... 33
TA=0o to 70oC (-40o to +85oC for industrial grade package), Vcc is 2.25V to 3.6V ............................................. 37
Unless otherwise noted: TA = -40o to +85oC, Vcc=2.25 - 3.63V, 70 pF load where applicable .............................. 38
EVISION
T
T
T
T
T
T
F
F
F
F
F
F
F
F
F
F
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
LECTRICAL
LECTRICAL
4.4.1 INTERRUPT GENERATION: ........................................................................................................................................ 25
4.4.2 INTERRUPT CLEARING: ............................................................................................................................................. 25
4.15.1 SOFTWARE FLOW CONTROL REGISTERS (XOFF1, XOFF2, XON1, XON2) - READ/WRITE .............................. 35
10: I
11: T
12: P
13: S
14: S
15: UART RESET CONDITIONS FOR CHANNEL A AND B ............................................................................................ 36
13. C
14. M
16. D
15. D
17. R
18. T
19. R
20. R
21. T
22. T
H
ISTORY
NTERRUPT
RANSMIT AND
ARITY SELECTION
AMPLING
OFTWARE
RANSMIT
RANSMIT
RANSMIT
LOCK
ATA
ATA
ECEIVE
ECEIVE
ECEIVE
ODEM
C
C
B
B
HARACTERISTICS
HARACTERISTICS
...................................................................................................................................... 46
T
US
US
I
IMING
NPUT
R
R
R
R
S
F
R
R
R
W
R
EADY
EADY
EADY
ATE
OURCE AND
LOW
EADY
EADY
EADY
EAD
RITE
R
/O
............................................................................................................................................................. 39
S
ECEIVE
UTPUT
& I
& I
& I
C
T
ELECT
T
& I
& I
& I
........................................................................................................................................................ 29
ONTROL
IMING
IMING
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
FIFO T
T
P
............................................................................................................................................... 32
.............................................................................................................................................. 40
IMING
............................................................................................................................................. 40
RIORITY
F
............................................................................................................. 37
............................................................................................................. 38
UNCTIONS
T
T
T
RIGGER
F
T
T
T
IMING
IMING
IMING
OR
IMING
IMING
IMING
L
EVEL
C
HANNELS
[N
[FIFO M
[FIFO M
T
........................................................................................................................ 34
[N
[FIFO M
[FIFO M
ABLE AND
ON
..................................................................................................................... 26
ON
-FIFO M
-FIFO M
ODE
ODE
A & B ................................................................................................. 39
ODE
ODE
L
, DMA D
, DMA E
II
EVEL
ODE
, DMA M
, DMA M
ODE
]
S
FOR
]
ELECTION
FOR
NABLED
ISABLED
ODE
ODE
C
C
HANNELS
mm
HANNELS
D
E
]
NABLED
]
ISABLED
FOR
FOR
) .............................................. 45
.......................................................................... 27
C
A & B ......................................................... 41
C
A & B ....................................................... 41
HANNELS
]
HANNELS
]
FOR
FOR
C
C
HANNELS
HANNELS
A & B......................................... 42
A & B........................................ 42
A & B ............................ 43
A & B............................ 43
REV. 1.0.2
I