参数资料
型号: XR16V2552IL-0B-EB
厂商: Exar Corporation
文件页数: 6/46页
文件大小: 0K
描述: EVAL BOARD FOR V2552 32QFN
标准包装: 1
系列: *
FIGURE 8. RECEIVER OPERATION IN NON-FIFO MODE
Receive Data Shift
R egister (R SR)
Receive
D ata Byte
and Errors
R H R Interrupt (ISR bit-2)
Receive D ata
H olding R egister
(R H R)
R XFIFO 1
16X or 8X or 4X C lock
( D LD[5:4] )
R eceive D ata C haracters
Data Bit
Validation
Error
Tags in
LSR bits
4:2
FIGURE 9. RECEIVER OPERATION IN FIFO AND AUTO RTS FLOW CONTROL MODE
Receive Data Shift
Register (RSR)
RXFIFO1
16X or 8X or 4X Clock
( DLD[5:4] )
Er
ro
rT
a
gs
(16-s
ets
)
Erro
rT
ags
in
LSR
bits
4:2
16 bytes by 11-bit
wide FIFO
Receive Data Characters
FIFO
Trigger=8
Example
: - RX FIFO trigger level selected at 8 bytes
(See Note Below)
Data fills to
14
Data falls to
4
Data Bit
Validation
Receive
Data FIFO
Receive
Data
Receive Data
Byte and Errors
RHR Interrupt (ISR bit-2) programmed for
desired FIFO trigger level.
FIFO is Enabled by FCR bit-0=1
RTS# de-asserts when data fills above the flow
control trigger level to suspend remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
RTS# re-asserts when data falls below the flow
control trigger level to restart remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
XR16V2552
14
HIGH PERFORMANCE DUART WITH 16-BYTE FIFO
REV. 1.0.3
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