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| 型號： | FIN210ACMLX |
| 廠商： | Fairchild Semiconductor |
| 文件頁數(shù)： | 16/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SER/DES 10BIT 32-MLP |
| 標(biāo)準(zhǔn)包裝： | 3,000 |
| 功能： | 串行器/解串器 |
| 輸入類型： | LVCMOS |
| 輸出類型： | 串行 |
| 輸入數(shù)： | 10 |
| 輸出數(shù)： | 1 |
| 電源電壓： | 1.65 V ~ 3.6 V |
| 工作溫度： | -30°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 32-MLP（5x5） |
| 包裝： | 帶卷 (TR) |
SC16IS741_1
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 29 April 2010
8 of 52
NXP Semiconductors
SC16IS741
Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.3 Software flow control
Software flow control is enabled through the enhanced feature register and the Modem
Control Register. Different combinations of software flow control can be enabled by setting
different combinations of EFR[3:0]. Table 3 shows software flow control options.
There are two other enhanced features relating to software flow control:
Xon Any function (MCR[5]): Receiving any character will resume operation after
recognizing the Xoff character. It is possible that an Xon1 character is recognized as
an Xon Any character, which could cause an Xon2 character to be written to the RX
FIFO.
Special character (EFR[5]): Incoming data is compared to Xoff2. Detection of the
special character sets the Xoff interrupt (IIR[4]) but does not halt transmission. The
Xoff interrupt is cleared by a read of the IIR. The special character is transferred to the
RX FIFO.
7.3.1 RX
When software flow control operation is enabled, the SC16IS741 will compare incoming
data with Xoff1/Xoff2 programmed characters (in certain cases, Xoff1 and Xoff2 must be
received sequentially). When the correct Xoff characters are received, transmission is
halted after completing transmission of the current character. Xoff detection also sets
IIR[4] (if enabled via IER[5]) and causes IRQ to go LOW.
To resume transmission, an Xon1/Xon2 character must be received (in certain cases
Xon1 and Xon2 must be received sequentially). When the correct Xon characters are
received, IIR[4] is cleared, and the Xoff interrupt disappears.
Table 3.
Software flow control options (EFR[3:0])
EFR[3]
EFR[2]
EFR[1]
EFR[0]
TX, RX software flow control
0
X
no transmit flow control
1
0
X
transmit Xon1, Xoff1
0
1
X
transmit Xon2, Xoff2
1
X
transmit Xon1 and Xon2, Xoff1 and Xoff2
X
0
no receive flow control
X
1
0
receiver compares Xon1, Xoff1
X
0
1
receiver compares Xon2, Xoff2
1011transmit Xon1, Xoff1
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
0111transmit Xon2, Xoff2
receiver compares Xon1 or Xon2, Xoff1 or Xoff2
1111transmit Xon1 and Xon2, Xoff1 and Xoff2
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
0011no transmit flow control
receiver compares Xon1 and Xon2, Xoff1 and Xoff2
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| FIN212ACGFX | 功能描述:LVDS 接口集成電路 12-Bit Serializer Deserializer RoHS:否 制造商:Texas Instruments 激勵器數(shù)量:4 接收機(jī)數(shù)量:4 數(shù)據(jù)速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
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