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参数资料
| 型号： | SC16IS741IPW,128 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 3/17页 |
| 文件大小： | 0K |
| 描述： | IC UART 16TSSOP |
| 标准包装： | 2,500 |
| 特点： | RS-485 |
| 通道数： | 1，UART |
| FIFO's： | 64 字节 |
| 规程： | RS232，RS485 |
| 电源电压： | 2.5V, 3.3V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 带卷 (TR) |
SC16IS741_1
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 29 April 2010
11 of 52
NXP Semiconductors
SC16IS741
Single UART with I2C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.5 Interrupts
The SC16IS741 has interrupt generation and prioritization capability. The Interrupt Enable
Register (IER) enables each of the interrupts and the IRQ signal in response to an
interrupt generation. When an interrupt is generated, the IIR indicates that an interrupt is
pending and provides the type of interrupt through IIR[5:0]. Table 6 summarizes the
interrupt control functions.
It is important to note that for the framing error, parity error, and break conditions, LSR[7]
generates the interrupt. LSR[7] is set when there is an error anywhere in the RX FIFO,
and is cleared only when there are no more errors remaining in the FIFO. LSR[4:2] always
represent the error status for the received character at the top of the RX FIFO. Reading
the RX FIFO updates LSR[4:2] to the appropriate status for the new character at the top of
the FIFO. If the RX FIFO is empty, then LSR[4:2] are all zeros.
For the Xoff interrupt, if an Xoff flow character detection caused the interrupt, the interrupt
is cleared by an Xon flow character detection. If a special character detection caused the
interrupt, the interrupt is cleared by a read of the IIR.
Table 6.
Summary of interrupt control functions
IIR[5:0]
Priority
level
Interrupt type
Interrupt source
00 0001
none
00 0110
1
receiver line status
OE, FE, PE, or BI errors occur in characters in the
RX FIFO
00 1100
2
RX time-out
Stale data in RX FIFO
00 0100
2
RHR interrupt
Receive data ready (FIFO disable) or
RX FIFO above trigger level (FIFO enable)
00 0010
3
THR interrupt
Transmit FIFO empty (FIFO disable) or
TX FIFO passes above trigger level (FIFO enable)
00 0000
4
Modem status
Change of state of modem input pins
01 0000
6
Xoff interrupt
Receive Xoff character(s)/ special character
10 0000
7
CTS, RTS
RTS pin or CTS pin change state from active (LOW)
to inactive (HIGH)
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| SC16IS74Q900 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Single UART with I2C-bus/SPI interface, 64 bytes of transmit and receive FIFOs |
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| SC16IS750IBS | 功能描述:UART 接口集成电路 I2C/SPI-UARTBRIDGE W/IRDA AND GPIO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16IS750IBS,128 | 功能描述:UART 接口集成电路 I2C/SPI-UARTBRIDGE W/IRDA AND GPIO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16IS750IBS,151 | 功能描述:UART 接口集成电路 UART I2C/SPI RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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