XR16L580_07 EXAR [Exar Corporation], XR16L580_07 Datasheet - Page 44
XR16L580_07
Manufacturer Part Number
XR16L580_07
Description
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
Manufacturer
EXAR [Exar Corporation]
Datasheet
1.XR16L580_07.pdf
(52 pages)
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XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
F
F
IGURE
IGURE
INT*
IOW#
TX
(Unloading)
(Loading data
into THR)
INT
RX
IOR#
(Reading data
out of RHR)
21. R
22. T
IER[1]
enabled
T
WRI
RANSMIT
ECEIVE
*INT is cleared when the ISR is read or when data is loaded into the THR.
Start
Start
R
Bit
Bit
R
EADY
EADY
ISR is read
I
T
D0:D7
NTERRUPT
D0:D7
I
SRT
NTERRUPT
T
WRI
Stop
Stop
T
Bit
Bit
T
T
IMING
RR
in RHR
IMING
1 Byte
T
SSR
[N
[N
ON
ON
-FIFO M
ISR is read
-FIFO M
D0:D7
T
D0:D7
44
SRT
ODE
ODE
]
T
]
RR
in RHR
1 Byte
T
SSR
T
WRI
D0:D7
ISR is read
D0:D7
T
SRT
T
RR
in RHR
1 Byte
T
SSR
REV. 1.4.1
TXNonFIFO
RXNFM
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