XR16L2751CM EXAR [Exar Corporation], XR16L2751CM Datasheet - Page 46

• Manufacturer Part Number: XR16L2751CM
• Description: 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
• Manufacturer: EXAR [Exar Corporation]

áç
áç
áç
áç
F
F
IGURE
IGURE
INT
RXRDY#
(Unloading)
INT*
TXRDY#
IOW#
(Loading data
into THR)
RX
IOR#
(Reading data
out of RHR)
TX
*INT is cleared when the ISR is read or when data is loaded into the THR.
20. R
21. T
IER[1]
enabled
RANSMIT
ECEIVE
T
WRI
R
T
Start
Start
Bit
R
WT
EADY
Bit
EADY
& I
ISR is read
D0:D7
& I
T
D0:D7
SRT
NTERRUPT
NTERRUPT
T
WRI
Stop
Stop
Bit
Bit
T
RR
T
in RHR
1 Byte
Ready
Active
T
IMING
2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
T
T
Data
T
IMING
SSR
SSR
WT
[N
[N
ISR is read
ON
T
ON
D0:D7
D0:D7
SRT
46
-FIFO M
-FIFO M
ODE
ODE
T
RR
in RHR
]
1 Byte
Ready
Active
T
T
Data
]
FOR
SSR
SSR
FOR
T
C
WRI
C
HANNELS
HANNELS
T
WT
D0:D7
A & B
A & B
ISR is read
D0:D7
T
SRT
TXNonFIFO
T
RR
T
in RHR
1 Byte
Active
Ready
SSR
T
Data
XR16L2751
SSR
RXNFM
REV. 1.0.0