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| 型號： | SC16C850VIBS |
| 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 XScale VLIO bus interface |
| 封裝： | SC16C850VIBS<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;SC16C850VIBS<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html& |
| 文件頁數(shù)： | 27/48頁 |
| 文件大?。?/td> | 338K |
| 代理商： | SC16C850VIBS |
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SC16C850V
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 19 January 2011
27 of 48
NXP Semiconductors
SC16C850V
Single UART with 128-byte FIFOs, IrDA, and XScale VLIO bus interface
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 SC16C850V 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.
0
LSR[0]
Receive data ready.
logic 0 = no data in Receive Holding Register or FIFO (normal default
condition)
logic 1 = data has been received and is saved in the Receive Holding Register
or FIFO
Table 20.
Bit
Line Status Register bits description
…continued
Symbol
Description
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]
Δ
CD
[1]
logic 0 = no CD change (normal default condition)
logic 1 = the CD input to the SC16C850V has changed state since the last
time it was read. A modem Status Interrupt will be generated.
MSR[2]
Δ
RI
[1]
logic 0 = no RI change (normal default condition)
logic 1 = the RI input to the SC16C850V has changed from a logic 0 to a
logic 1. A modem Status Interrupt will be generated.
MSR[1]
Δ
DSR
[1]
logic 0 = no DSR change (normal default condition)
logic 1 = the DSR input to the SC16C850V has changed state since the last
time it was read. A modem Status Interrupt will be generated.
MSR[0]
Δ
CTS
[1]
logic 0 = no CTS change (normal default condition)
logic 1 = the CTS input to the SC16C850V 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 |
|---|---|
| SC16C852LIB | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| SC16C852LIBS | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| SC16C852LIET | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode bus interface |
| SC16C852SVIET | 1.8 V dual UART, 20 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA), and XScale VLIO bus interface |
| SC16C852VIET | 1.8 V dual UART, 5 Mbit-s (max.) with 128-byte FIFOs, infrared (IrDA) and XScale VLIO bus interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC16C850VIBS,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 |
| SC16C850VIBS,128 | 功能描述:UART 接口集成電路 1.8V 1 CH UART 128B 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 |
| SC16C850VIBS,151 | 功能描述:UART 接口集成電路 1.8V 1 CH UART 128B 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 |
| SC16C850VIBS,157 | 功能描述:UART 接口集成電路 1.8V 1 CH UART 128B 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 |
| SC16C850VIBS-F | 功能描述:UART 接口集成電路 1.8V 1 CH UART 128B FIFO VLIO 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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