ST16C654D Exar Corporation, ST16C654D Datasheet - Page 51

• Manufacturer Part Number: ST16C654D
• Description: St16c654d -quad Uart With 64-byte Fifo And Infrared Irda Encoder/decoder
• Manufacturer: Exar Corporation

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2.97V TO 5.5V QUAD UART WITH 64-BYTE FIFO
ABSOLUTE MAXIMUM RATINGS .................................................................................. 37
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%) 37
ELECTRICAL CHARACTERISTICS................................................................................ 37
T
ABLE OF
DC E
AC E
TA=0
P
R
ACKAGE
4.5 FIFO CONTROL REGISTER (FCR) - WRITE-ONLY ..................................................................................... 27
4.6 LINE CONTROL REGISTER (LCR) - READ/WRITE ..................................................................................... 29
4.7 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE 30
4.8 LINE STATUS REGISTER (LSR) - READ ONLY ........................................................................................... 31
4.9 MODEM STATUS REGISTER (MSR) - READ ONLY .................................................................................... 32
4.10 SCRATCH PAD REGISTER (SPR) - READ/WRITE .................................................................................... 33
4.11 BAUD RATE GENERATOR REGISTERS (DLL AND DLM) - READ/WRITE .............................................. 33
4.12 ENHANCED FEATURE REGISTER (EFR) - READ/WRITE ........................................................................ 33
4.13 SOFTWARE FLOW CONTROL REGISTERS (XOFF1, XOFF2, XON1, XON2) - READ/WRITE ................ 35
4.14 FIFO STATUS REGISTER (FSTAT) - READ/WRITE ................................................................................... 35
EVISION
T
T
T
T
T
T
F
F
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
IGURE
IGURE
LECTRICAL
LECTRICAL
O TO
4.4.1 INTERRUPT GENERATION: ...................................................................................................................................... 26
4.4.2 INTERRUPT CLEARING: ........................................................................................................................................... 26
11: I
12: T
13: P
14: INT O
15: S
16: UART RESET CONDITIONS FOR CHANNELS A-D ................................................................................................. 36
14. C
15. M
16. 16 M
17. 16 M
18. 68 M
20. R
19. 68 M
21. T
22. R
23. R
24. T
25. T
H
D
C
70
ISTORY
IMENSIONS
ONTENTS
NTERRUPT
O
RANSMIT AND
ARITY SELECTION
OFTWARE
RANSMIT
RANSMIT
RANSMIT
LOCK
ECEIVE
ECEIVE
ECEIVE
ODEM
C (-40
C
C
UTPUT
ODE
ODE
ODE
ODE
HARACTERISTICS
HARACTERISTICS
...................................................................................................................................... 49
T
I
IMING
NPUT
R
R
R
(I
(I
(M
(M
O TO
S
F
R
R
R
EADY
EADY
EADY
................................................................................................................................. 46
NTEL
NTEL
OURCE AND
LOW
M
EADY
EADY
EADY
OTOROLA
OTOROLA
............................................................................................................
R
ODES
/O
............................................................................................................................................................. 39
ECEIVE
) D
) D
UTPUT
& I
& I
& I
C
+85
........................................................................................................................................................ 30
& I
& I
& I
ONTROL
ATA
ATA
..................................................................................................................................................... 31
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
NTERRUPT
O
) D
) D
FIFO T
T
C
B
B
P
IMING
ATA
ATA
US
US
RIORITY
.............................................................................................................. 37
.............................................................................................................. 38
FOR INDUSTRIAL GRADE PACKAGE
F
UNCTIONS
R
W
B
B
EAD
T
T
T
RIGGER
RITE
US
US
F
T
T
T
IMING
IMING
IMING
OR
IMING
IMING
IMING
L
R
W
T
EVEL
T
C
EAD
IMING FOR
RITE
IMING FOR
HANNELS
[N
[FIFO M
[FIFO M
........................................................................................................................ 34
L
[N
[FIFO M
[FIFO M
EVEL
..................................................................................................................... 27
T
ON
T
ON
IMING FOR
IMING FOR
-FIFO M
-FIFO M
S
ODE
ODE
C
A-D .................................................................................................... 40
ELECTION
C
ODE
ODE
HANNELS
HANNELS
II
, DMA D
, DMA E
ODE
, DMA M
, DMA M
C
ODE
C
HANNELS
HANNELS
]
............................................................................................ 28
FOR
]
A-D ................................................................................... 40
FOR
A-D .................................................................................. 41
NABLED
ISABLED
ODE
ODE
C
C
HANNELS
A-D........................................................................... 41
A-D ......................................................................... 42
HANNELS
D
E
]
]
ISABLED
NABLED
), V
FOR
FOR
CC IS
C
A-D ............................................................ 42
C
A-D .......................................................... 43
HANNELS
]
HANNELS
]
FOR
FOR
2.97
C
C
HANNELS
HANNELS
A-D............................................ 44
A-D........................................... 43
TO
5.5V ........................ 38
A-D ............................... 45
A-D .............................. 44
ST16C654/654D
REV. 5.0.2
I