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| 型號： | SC16IS740IPW |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 連接器件 |
| 英文描述： | Single UART with I2C-bus-SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support |
| 封裝： | SC16IS740IPW/Q900<SOT403-1 (TSSOP16)|<<http://www.nxp.com/packages/SOT403-1.html<1<Always Pb-free,;SC16IS740IPW<SOT403-1 (TSSOP16)|<<http://www.nxp.com/packages/SOT403-1. |
| 文件頁數(shù)： | 15/62頁 |
| 文件大?。?/td> | 308K |
| 代理商： | SC16IS740IPW |
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SC16IS740_750_760_6
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 06 — 13 May 2008
15 of 62
NXP Semiconductors
SC16IS740/750/760
Single UART with I
2
C-bus/SPI interface, 64-byte FIFOs, IrDA SIR
7.5 Interrupts
The SC16IS740/750/760 has interrupt generation and prioritization (seven prioritized
levels of interrupts) capability. The interrupt enable registers (IER and IOIntEna) enable
each of the seven types of 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.
[1]
Available only on SC16IS750/SC16IS760.
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.
IIR[5:0]
Summary of interrupt control functions
Priority
level
none
none
1
receiver line status
Interrupt type
Interrupt source
00 0001
00 0110
none
OE, FE, PE, or BI errors occur in characters in the
RX FIFO
Stale data in RX FIFO
Receive data ready (FIFO disable) or
RX FIFO above trigger level (FIFO enable)
Transmit FIFO empty (FIFO disable) or
TX FIFO passes above trigger level (FIFO enable)
Change of state of modem input pins
Input pins change of state
Receive Xoff character(s)/ special character
RTS pin or CTS pin change state from active (LOW)
to inactive (HIGH)
00 1100
00 0100
2
2
RX time-out
RHR interrupt
00 0010
3
THR interrupt
00 0000
11 0000
01 0000
10 0000
4
5
6
7
modem status
[1]
I/O pins
[1]
Xoff interrupt
CTS, RTS
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| SC16IS760IBS | Single UART with I2C-bus-SPI interface, 64 bytes of transmit and receive FIFOs, IrDA SIR built-in support |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16IS740IPW,112 | 功能描述:UART 接口集成電路 UART SINGLE W/FIFO 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 |
| SC16IS740IPW,128 | 功能描述:UART 接口集成電路 I2C/SPI-SLAVEBRIDGE 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 |
| SC16IS740IPW/Q900, | 功能描述:UART 接口集成電路 I2C/SPI-UART BRIDGE W/IRDA 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 |
| SC16IS740IPW/Q900,128 | 制造商:NXP Semiconductors 功能描述:0 |
| SC16IS740IPW112 | 制造商:NXP Semiconductors 功能描述:IC SINGLE UART FIFO 5MBPS 3.6V TSSOP-16 制造商:NXP Semiconductors 功能描述:IC UART FIFO 5MBPS 3.6V 16TSSOP |
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