XR16M2752IJ44 EXAR [Exar Corporation], XR16M2752IJ44 Datasheet - Page 14

• Manufacturer Part Number: XR16M2752IJ44
• Description: HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
• Manufacturer: EXAR [Exar Corporation]

XR16M2752
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
N
F
F
OTE
IGURE
IGURE
: Table-B selected as Trigger Table for
Receive Data
Byte and Errors
8. R
9. R
16X or 8X Clock
16X or 8X C lock
64 bytes by 11-bit
(EMSR bit-7)
(E M S R bit-7)
and E rrors
D ata B yte
R eceive
ECEIVER
ECEIVER
wide
FIFO
O
O
PERATION IN NON
PERATION IN
Receive Data Shift
Register (RSR)
LS R bits
T ags in
E rror
4:2
Data FIFO
FIFO
Receive
Receive
Data
R eceive D ata S hift
-FIFO M
Figure 9
R egister (R S R )
AND
H olding R egister
R eceive D ata
A
UTO
ODE
Validation
Data falls to
(R H R )
Data Bit
Data fills to
Trigger=16
(
Table 10
Example
RTS F
FIFO
24
8
: - RX FIFO trigger level selected at 16
14
LOW
).
control trigger level to restart remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
Enable by EFR bit-6=1, MCR bit-1.
RTS# re-asserts when data falls below the flow
RTS# de-asserts when data fills above the flow
control trigger level to suspend remote transmitter.
(See Note Below)
RHR Interrupt (ISR bit-2) programmed for
desired FIFO trigger level.
FIFO is Enabled by FCR bit-0=1
V alidation
C
D ata B it
ONTROL
bytes
R H R Interrupt (IS R bit-2)
M
ODE
Receive Data Characters
R e ce ive D a ta C h a ra cte rs
R X F IF O 1
RXFIFO1
REV. P1.0.0