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| 型号： | SC16C850IET,157 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 21/55页 |
| 文件大小： | 0K |
| 描述： | IC UART SINGLE W/FIFO 36-TFBGA |
| 标准包装： | 2,450 |
| 特点： | 可编程 |
| 通道数： | 1，UART |
| FIFO's： | 128 字节 |
| 规程： | RS485 |
| 电源电压： | 2.5 V ~ 3.3 V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-TFBGA |
| 供应商设备封装： | 36-TFBGA（3.5x3.5） |
| 包装： | 托盘 |
| 其它名称： | 935284685157 SC16C850IET SC16C850IET-ND |
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SC16C850
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 11 November 2010
28 of 55
NXP Semiconductors
SC16C850
2.5 to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
7.6 Modem Control Register (MCR)
This register controls the interface with the modem or a peripheral device.
Table 18.
LCR[1:0] word length
LCR[1]
LCR[0]
Word length (bits)
00
5
01
6
10
7
11
8
Table 19.
Modem Control Register bits description
Bit
Symbol
Description
7
MCR[7]
Clock select
logic 0 = divide-by-1 clock input
logic 1 = divide-by-4 clock input
6
MCR[6]
IR enable (see Figure 22).
logic 0 = enable the standard modem receive and transmit input/output
interface (normal default condition)
logic 1 = enable infrared IrDA receive and transmit inputs/outputs. While
in this mode, the TX/RX output/inputs are routed to the infrared
encoder/decoder. The data input and output levels will conform to the
IrDA infrared interface requirement. As such, while in this mode, the
infrared TX output will be a logic 0 during idle data conditions.
5
MCR[5]
Interrupt type (Intel mode only). In Intel mode (16/68 = 1), this pin
determines the interrupt output pin configuration.
logic 0 = CMOS output
logic 1 = open-source. A 300
Ω to 500 Ω pull-down resistor is required.
In Motorola mode (16/68 = 0), the output is always open-drain.
4
MCR[4]
Loopback. Enable the local loopback mode (diagnostics). In this mode the
transmitter output (TX) and the receiver input (RX), CTS, DSR, CD, and RI
are disconnected from the SC16C850 I/O pins. Internally the modem data
and control pins are connected into a loopback data configuration (see
Figure 9). In this mode, the receiver and transmitter interrupts remain fully
operational. The Modem Control Interrupts are also operational, but the
interrupts’ sources are switched to the lower four bits of the Modem Control.
Interrupts continue to be controlled by the IER register.
logic 0 = disable Loopback mode (normal default condition)
logic 1 = enable local Loopback mode (diagnostics)
3MCR[3]
OP2. This bit is used for internal Loopback mode only. In Loopback mode,
this bit is used to write the state of the modem CD interface signal.
2MCR[2]
OP1. This bit is used for internal Loopback mode only. In Loopback mode,
this bit is used to write the state of the modem RI interface signal.
1MCR[1]
RTS
logic 0 = force RTS output to a logic 1 (normal default condition)
logic 1 = force RTS output to a logic 0
0MCR[0]
DTR
logic 0 = force DTR output to a logic 1 (normal default condition)
logic 1 = force DTR output to a logic 0
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相关代理商/技术参数 |
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| SC16C850IET-G | 功能描述:UART 接口集成电路 16C 2.5-5V 5MBPS UART 128BFIFO 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 |
| SC16C850IET-S | 功能描述:UART 接口集成电路 16C 2.5-5V 5MBPS UART 128BFIFO 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 |
| SC16C850L | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:1.8 V single UART, 5 Mbit/s (max.) with 128-byte FIFOs, infrared (IrDA) and 16 mode or 68 mode parallel bus interface |
| SC16C850LIB,128 | 制造商:NXP Semiconductors 功能描述: |
| SC16C850LIB,151 | 制造商:NXP Semiconductors 功能描述: |
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