參數(shù)資料
型號： SC16C850LIB
廠商： NXP Semiconductors N.V.
元件分類： 收發(fā)器
英文描述： 1.8 V single UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode parallel bus interface
封裝： SC16C850LIB<SOT313|<<<1<Always Pb-free,;SC16C850LIB<SOT313|<<<1<Always Pb-free,;SC16C850LIB<SOT313|<<<1<Always Pb-free,;SC16C850LIBS<SOT617-1 (HVQFN3
文件頁數(shù)： 30/55頁
文件大?。?/td> 1029K
代理商： SC16C850LIB
SC16C850L
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 1 February 2011
30 of 55
NXP Semiconductors
SC16C850L
1.8 V single UART with 128-byte FIFOs and IrDA encoder/decoder
7.8 Modem Status Register (MSR)
This register shares the same address as EFCR register. This is a read-only register and
it provides the current state of the control interface signals from the modem, or other
peripheral device to which the SC16C850L is connected. Four bits of this register are
used to indicate the changed information. These bits are set to a logic 1 whenever a
control input from the modem changes state. These bits are set to a logic 0 whenever the
CPU reads this register.
When write, the data will be written to EFCR register.
Table 21.
Bit
7
[1]
Whenever any MSR bit 3:0 is set to logic 1, a Modem Status Interrupt will be generated.
Modem Status Register bits description
Symbol
Description
MSR[7]
CD. During normal operation, this bit is the complement of the CD input.
Reading this bit in the loopback mode produces the state of MCR[3] (OP2).
MSR[6]
RI. During normal operation, this bit is the complement of the RI input.
Reading this bit in the loopback mode produces the state of MCR[2] (OP1).
MSR[5]
DSR. During normal operation, this bit is the complement of the DSR input.
During the loopback mode, this bit is equivalent to MCR[0] (DTR).
MSR[4]
CTS. During normal operation, this bit is the complement of the CTS input.
During the loopback mode, this bit is equivalent to MCR[1] (RTS).
MSR[3]
CD
[1]
logic 0 = no CD change (normal default condition)
logic 1 = the CD input to the SC16C850L has changed state since the last
time it was read. A modem Status Interrupt will be generated.
MSR[2]
RI
[1]
logic 0 = no RI change (normal default condition)
logic 1 = the RI input to the SC16C850L has changed from a logic 0 to a
logic 1. A modem Status Interrupt will be generated.
MSR[1]
DSR
[1]
logic 0 = no DSR change (normal default condition)
logic 1 = the DSR input to the SC16C850L has changed state since the
last time it was read. A modem Status Interrupt will be generated.
MSR[0]
CTS
[1]
logic 0 = no CTS change (normal default condition)
logic 1 = the CTS input to the SC16C850L has changed state since the
last time it was read. A modem Status Interrupt will be generated.
6
5
4
3
2
1
0
相關(guān)PDF資料
PDF描述
SC16C850LIBS 1.8 V single UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode parallel bus interface
SC16C850LIET 1.8 V single UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode parallel bus interface
SC16C850SVIBS 1.8 V single UART, 20 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA), and XScale VLIO bus interface
SC16C850VIBS 1.8 V single UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA), and XScale VLIO bus interface
SC16C852LIB 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC16C850LIB,128 制造商:NXP Semiconductors 功能描述:
SC16C850LIB,151 制造商:NXP Semiconductors 功能描述:
SC16C850LIB,157 制造商:NXP Semiconductors 功能描述:
SC16C850LIBS 功能描述:UART 接口集成電路 1.8V 1 CH UART 128B FIFO 5MBPS 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
SC16C850LIBS,115 功能描述:UART 接口集成電路 1.8V 1 CH UART 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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