參數(shù)資料
型號(hào)： SC16C752BIB48
廠商： NXP Semiconductors N.V.
元件分類： 收發(fā)器
英文描述： 5 V, 2.2 V and 2.5 V dual UART, 5 Mbit-s (max.), with 64-byte FIFOs
封裝： SC16C752BIB48<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html<1<Always Pb-free,;SC16C752BIB48<SOT313-2 (LQFP48)|<<http://www.nxp.com/packages/SOT313-2.html&
文件頁(yè)數(shù)： 13/47頁(yè)
文件大?。?/td> 945K
代理商： SC16C752BIB48
SC16C752B
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 6 — 30 November 2010
13 of 47
NXP Semiconductors
SC16C752B
5 V, 2.2 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs
6.5 Interrupts
The SC16C752B has interrupt generation and prioritization (six prioritized levels of
interrupts) capability. The Interrupt Enable Register (IER) enables each of the six types of
interrupts and the INTA/INTB signal in response to an interrupt generation. The IER can
also disable the interrupt system by clearing bit 0 to bit 3 and bit 5 to bit 7. 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 LSR.
Table 6.
IIR[5:0]
Interrupt control functions
Priority
level
None
none
1
receiver line status
Interrupt type
Interrupt source
Interrupt reset method
00 0001
00 0110
none
OE, FE, PE, or BI errors occur in
characters in the RX FIFO
none
FE, PE, BI: all erroneous
characters are read from the
RX FIFO.
OE: read LSR
read RHR
read RHR
00 1100
00 0100
2
2
RX time-out
RHR interrupt
stale data in RX FIFO
DRDY (data ready)
(FIFO disable)
RX FIFO above trigger level
(FIFO enable)
TFE (THR empty)
(FIFO disable)
TX FIFO passes above trigger level
(FIFO enable)
MSR[3:0] = logic 0
receive Xoff character(s)/special
character
RTSn pin or CTSn pin change state
from active (LOW) to inactive (HIGH)
00 0010
3
THR interrupt
read IIR
or
a write to the THR
00 0000
01 0000
4
5
modem status
Xoff interrupt
read MSR
receive Xon character(s)/Read of
IIR
read IIR
10 0000
6
CTS, RTS
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參數(shù)描述
SC16C752BIB48,128 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH 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
SC16C752BIB48,151 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH 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
SC16C752BIB48,157 功能描述:UART 接口集成電路 2CH. UART 64B 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
SC16C752BIB48151 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
SC16C752BIB48-F 功能描述:UART 接口集成電路 16CB 2.5V-5V 2CH UART 64B 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
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