xr16m670 Exar Corporation, xr16m670 Datasheet - Page 52

• Manufacturer Part Number: xr16m670
• Description: 1.62v To 3.63v High Performance Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16M670
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
ABSOLUTE MAXIMUM RATINGS.................................................................................. 41
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%) 41
ELECTRICAL CHARACTERISTICS ............................................................................... 41
PACKAGE DIMENSIONS (24 PIN QFN - 4 X 4 X 0.9
PACKAGE DIMENSIONS (32 PIN QFN - 5 X 5 X 0.9
PACKAGE DIMENSIONS (25 PIN BGA - 3 X 3 X 0.8
DC E
AC E
TA = -40
R
4.4 INTERRUPT STATUS REGISTER (ISR) - READ-ONLY .................................................................................. 27
4.5 FIFO CONTROL REGISTER (FCR) - WRITE-ONLY......................................................................................... 29
4.6 LINE CONTROL REGISTER (LCR) - READ/WRITE......................................................................................... 30
4.7 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE.. 31
4.8 LINE STATUS REGISTER (LSR) - READ ONLY.............................................................................................. 33
4.9 MODEM STATUS REGISTER (MSR) - READ ONLY ....................................................................................... 34
4.10 MODEM STATUS REGISTER (MSR) - WRITE ONLY .................................................................................... 35
4.11 SCRATCH PAD REGISTER (SPR) - READ/WRITE ....................................................................................... 35
4.12 ENHANCED MODE SELECT REGISTER (EMSR) - WRITE-ONLY ............................................................... 35
4.13 BAUD RATE GENERATOR REGISTERS (DLL, DLM AND DLD) - READ/WRITE ....................................... 36
4.14 RX/TX FIFO LEVEL COUNT REGISTER (FC) - READ-ONLY ....................................................................... 37
4.15 FEATURE CONTROL REGISTER (FCTR) - READ/WRITE............................................................................ 37
4.16 ENHANCED FEATURE REGISTER (EFR) - READ/WRITE ........................................................................... 38
4.17 SOFTWARE FLOW CONTROL REGISTERS (XOFF1, XOFF2, XON1, XON2) - READ/WRITE................... 39
EVISION
T
T
T
T
T
T
T
T
T
F
F
F
F
F
F
F
F
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
LECTRICAL
LECTRICAL
4.4.1 INTERRUPT GENERATION: ........................................................................................................................................ 27
4.4.2 INTERRUPT CLEARING: ............................................................................................................................................. 28
8: I
9: T
10: P
11: INT O
12: S
13: S
14: BRG S
15: S
16: UART RESET CONDITIONS ...................................................................................................................................... 40
O TO
15. C
16. M
18. 16 M
17. 16 M
19. R
20. T
21. R
22. T
H
NTERRUPT
ISTORY
RANSMIT AND
ARITY SELECTION
CRATCHPAD
AMPLING
OFTWARE
RANSMIT
RANSMIT
LOCK
ECEIVE
ECEIVE
+85
ODEM
C
C
UTPUT
ODE
ODE
ELECT
HARACTERISTICS
HARACTERISTICS
O
...................................................................................................................................... 50
T
I
C, V
IMING
NPUT
S
R
R
R
(I
(I
F
R
R
OURCE AND
EADY
EADY
ATE
NTEL
NTEL
LOW
M
EADY
EADY
R
S
................................................................................................................................................................ 37
ODES
/O
WAP
ECEIVE
CC IS
............................................................................................................................................................. 43
S
) D
) D
UTPUT
& I
& I
C
ELECT
& I
& I
........................................................................................................................................................ 31
ONTROL
S
ATA
ATA
NTERRUPT
NTERRUPT
..................................................................................................................................................... 32
ELECTION
NTERRUPT
NTERRUPT
1.62
FIFO T
P
T
B
B
RIORITY
............................................................................................................................................... 36
IMING
US
US
F
............................................................................................................. 41
............................................................................................................. 42
TO
UNCTIONS
W
R
RIGGER
EAD
T
T
RITE
.................................................................................................................................... 43
.................................................................................................................................... 35
T
T
IMING
IMING
3.6V, 70
L
IMING
IMING
EVEL
T
T
IMING
IMING
T
[N
[FIFO M
ABLE AND
........................................................................................................................ 38
[N
[FIFO M
....................................................................................................................... 28
ON
ON
................................................................................................................... 44
.................................................................................................................. 44
-FIFO M
P
-FIFO M
F
ODE
ODE
LOAD WHERE APPLICABLE
L
EVEL
] .................................................................................................... 46
II
ODE
] .................................................................................................. 46
ODE
S
] ............................................................................................ 45
ELECTION
] .......................................................................................... 45
mm
mm
mm
............................................................................ 30
) .............................................. 47
) .............................................. 48
).............................................. 49
............................................. 42
REV. 1.0.0