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參數(shù)資料
| 型號(hào)： | XR16V2651IM-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 8/51頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR V2651 48TQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16V2651
16
HIGH PERFORMANCE DUART WITH 32-BYTE FIFO AND POWERSAVE FEATURE
REV. 1.0.2
2.12
Auto RTS (Hardware) Flow Control
Automatic RTS hardware flow control is used to prevent data overrun to the local receiver FIFO. The RTS#
output is used to request remote unit to suspend/resume data transmission. The auto RTS flow control
features is enabled to fit specific application requirement (see Figure 10):
Enable auto RTS flow control using EFR bit-6.
The auto RTS function must be started by asserting RTS# output pin (MCR bit-1 to logic 1 after it is enabled).
If using the Auto RTS interrupt:
Enable RTS interrupt through IER bit-6 (after setting EFR bit-4). The UART issues an interrupt when the
RTS# pin makes a transition from low to high: ISR bit-5 will be set to logic 1.
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
ror
T
ags
(32
-s
et
s)
E
rro
rT
ag
s
in
LS
R
b
its
4:2
Receive Data Characters
FIFO
Trigger=16
Example
: - RX FIFO trigger level selected at 16 bytes
(See Note Below)
Data fills to
24
Data falls to
8
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.
32 bytes by 11-bit wide
FIFO
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16V2651IM-F | 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR16V2651IMTR-F | 制造商:Exar Corporation 功能描述:UART 2-CH 32Byte FIFO 2.5V/3.3V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR16V2651IMTR-F |
| XR16V2652 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 32-BYTE FIFO |
| XR16V2652_07 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 32-BYTE FIFO |
| XR16V2652IJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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