XR16L570 Exar Corporation, XR16L570 Datasheet - Page 46

• Manufacturer Part Number: XR16L570
• Description: SMALLEST 1.62V TO 5.5V UART
• Manufacturer: Exar Corporation

XR16L570
SMALLEST 1.62V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
ABSOLUTE MAXIMUM RATINGS...................................................................................33
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%) 33
PACKAGE DIMENSIONS (32 PIN QFN - 5 X 5 X 0.9 MM)..............................................42
PACKAGE DIMENSIONS (24 PIN QFN - 4 X 4 X 0.9 MM)..............................................43
T
ABLE OF
DC E
DC E
AC E
AC E
D
D
D
D
R
4.5 INTERRUPT STATUS REGISTER (ISR) - READ-ONLY ............................................................................... 23
4.6 FIFO CONTROL REGISTER (FCR) - WRITE-ONLY ...................................................................................... 24
4.7 LINE CONTROL REGISTER (LCR) - READ/WRITE ...................................................................................... 25
4.8 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE 27
4.9 LINE STATUS REGISTER (LSR) - READ ONLY ........................................................................................... 28
4.10 MODEM STATUS REGISTER (MSR) - READ ONLY .................................................................................. 29
4.11 SCRATCHPAD REGISTER (SPR) - READ/WRITE ..................................................................................... 30
4.12 BAUD RATE GENERATOR REGISTERS (DLL AND DLM) - READ/WRITE .............................................. 30
4.13 DEVICE IDENTIFICATION REGISTER (DVID) - READ ONLY .................................................................... 30
4.14 DEVICE REVISION REGISTER (DREV) - READ ONLY .............................................................................. 30
4.15
4.16 SOFTWARE FLOW CONTROL REGISTERS (XOFF1, XOFF2, XON1, XON2) - WRITE ONLY ................ 32
Unless otherwise noted: TA= -40o to +85oC, Vcc=2.97 - 5.5V, 70 pF load where applicable .................................. 35
Unless otherwise noted: TA= -40o to +85oC, Vcc=1.62 - 2.75V, 70 pF load where applicable ................................ 36
ATA RATE CHARACTERIZATION AT
Operating Temperature Range = -40o to +85oC....................................................................................................... 37
ATA RATE CHARACTERIZATION AT
Operating Temperature Range = -40o to +85oC....................................................................................................... 37
ATA RATE CHARACTERIZATION AT
Operating Temperature Range = -40o to +85oC....................................................................................................... 37
ATA RATE CHARACTERIZATION AT
Operating Temperature Range = -40o to +85oC....................................................................................................... 37
EVISION
T
T
T
T
T
F
F
F
F
F
F
F
F
ABLE
ABLE
ABLE
ABLE
ABLE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
IGURE
LECTRICAL
LECTRICAL
LECTRICAL
LECTRICAL
4.5.1 INTERRUPT GENERATION: ...................................................................................................................................... 23
4.5.2 INTERRUPT CLEARING: ........................................................................................................................................... 23
ENHANCED FEATURE REGISTER (EFR) ................................................................................................. 30
7: I
8: T
9: P
10: S
11: UART RESET CONDITIONS FOR CHANNEL A AND B............................................................................................ 33
14. C
15. M
16. D
17. D
18. R
19. T
20. R
21. T
H
C
ISTORY
NTERRUPT
ONTENTS
RANSMIT AND
ARITY SELECTION
OFTWARE
RANSMIT
RANSMIT
LOCK
ATA
ATA
ECEIVE
ECEIVE
ODEM
C
C
C
C
HARACTERISTICS
HARACTERISTICS
HARACTERISTICS
HARACTERISTICS
B
B
.......................................................................................................................................44
T
US
US
I
IMING
NPUT
S
R
R
F
R
R
OURCE AND
R
W
EADY
EADY
LOW
EADY
EADY
EAD
R
RITE
............................................................................................................
/O
ECEIVE
............................................................................................................................................................. 38
.......................................................................................................................................................... 26
UTPUT
I
I
C
T
NTERRUPT
NTERRUPT
T
I
I
ONTROL
IMING
NTERRUPT
NTERRUPT
IMING
FIFO T
P
T
.............................................................................................................................................. 39
RIORITY
IMING
............................................................................................................................................. 39
5V ..........................................................................................................37
3.3V .......................................................................................................37
2.5V .......................................................................................................37
1.8V .......................................................................................................37
F
..............................................................................................................34
..............................................................................................................34
..............................................................................................................35
..............................................................................................................36
T
T
UNCTIONS
RIGGER
T
T
IMING
IMING
.................................................................................................................................... 38
IMING
IMING
L
EVEL
[N
[FIFO M
[N
[FIFO M
L
ON
........................................................................................................................ 31
EVEL
....................................................................................................................... 24
ON
-FIFO M
-FIFO M
S
ODE
ODE
ELECTION
] ....................................................................................................... 41
ODE
] ..................................................................................................... 41
II
ODE
] ............................................................................................... 40
] ............................................................................................. 40
.............................................................................................. 25
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