xr16m2651 Exar Corporation, xr16m2651 Datasheet - Page 46
xr16m2651
Manufacturer Part Number
xr16m2651
Description
High Performance Duart With 32-byte Fifo And Powersave Feature
Manufacturer
Exar Corporation
Datasheet
1.XR16M2651.pdf
(51 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
xr16m2651IM48-F
Manufacturer:
Exar Corporation
Quantity:
10 000
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XR16M2651
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE FEATURE
F
IGURE
(Unloading)
(Loading data
*INT cleared when the ISR is read or when TX FIFO fills up to trigger level.
24. T
into FIFO)
TX
INT*
TXRDY#
IOW#
RANSMIT
enabled
IER[1]
Start
Bit
S
R
D0:D7
EADY
ISR Read
Stop
Bit
T
& I
S
D0:D7
NTERRUPT
TX FIFO fills up
to trigger level
T
T
IMING
D0:D7
[FIFO M
S
TX FIFO
46
Full
D0:D7
T
WRI
ODE
T
, DMA M
T
SRT
S
D0:D7
ODE
T
WT
T
E
S
NABLED
D0:D7
below trigger level
TX FIFO drops
T
]
T
SI
empty location
FOR
At least 1
in FIFO
ISR Read
C
S
HANNELS
Last Data Byte
Transmitted
D0:D7
TXDMA
T
REV. 1.0.2
A & B
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