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參數(shù)資料
| 型號： | XR16M780IL32-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 32/58頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR XR16M780-B 32QFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16M780
38
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO
REV. 1.0.0
4.12
Enhanced Mode Select Register (EMSR) - Write-only
This register replaces SPR (during a Write) and is accessible only when FCTR[6] = 1.
EMSR[1:0]: Receive/Transmit FIFO Level Count
When Scratchpad Swap (FCTR[6]) is asserted, EMSR bits 1-0 controls what mode the FIFO Level Counter is
operating in.
During Alternate RX/TX FIFO Level Counter Mode, the first value read after EMSR bits 1-0 have been
asserted will always be the RX FIFO Level Counter. The second value read will correspond with the TX FIFO
Level Counter. The next value will be the RX FIFO Level Counter again, then the TX FIFO Level Counter and
so on and so forth.
EMSR[2]: Send TX Immediately
Logic 0 = Do not send TX immediately (default).
Logic 1 = Send TX immediately. When FIFO is enabled and this bit is set, the next data will be written to the
TX shift register. Thus, the data will be sent out immediately instead of queuing in the FIFO. Every time, only
1 byte will be send out. Once this byte has been sent out, the EMSR[2] will go back to 0 automatically. If
more than 1 byte will be sent out, EMSR[2] needs to be set to 1 for each byte.
EMSR[3]: Invert RTS in RS485 mode
Logic 0 = RTS# output is a logic 0 during TX and a logic 1 during RX (default).
Logic 1 = RTS# output is a logic 1 during TX and a logic 0 during RX.
TABLE 12: SCRATCHPAD SWAP SELECTION
FCTR[6] EMSR[1]
EMSR[0] Scratchpad is
0
X
Scratchpad
1
X
0
RX FIFO Level Counter Mode
1
0
1
TX FIFO Level Counter Mode
1
Alternate RX/TX FIFO Counter Mode
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16M780IL32-0C-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M780IL32 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M780IL32-F | 功能描述:UART 接口集成電路 1.8 HIGH PERFORMANCE UART W/64 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 |
| XR16M780IM48 | 制造商:EXAR 制造商全稱:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE UART WITH 64-BYTE FIFO |
| XR16M780IM48-0A-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M780IM48 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR16M780IM48-0C-EB | 功能描述:界面開發(fā)工具 Eval Board for XR16M780IM48 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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