参数资料
型号: SC16C850IET,157
厂商: NXP Semiconductors
文件页数: 2/55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:
带IrDA 编码器/解码器:
带故障启动位检测功能:
带调制解调器控制功能:
带CMOS:
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
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
10 of 55
NXP Semiconductors
SC16C850
2.5 to 3.3 V UART with 128-byte FIFOs and IrDA encoder/decoder
6.2 Extended mode (128-byte FIFO)
The device is in the extended mode when any of these four registers contains any value
other than 0: FLWCNTH, FLWCNTL, TXINTLVL, RXINTLVL.
6.3 Internal registers
The SC16C850 provides a set of 25 internal registers for monitoring and controlling the
functions of the UART. These registers are shown in Table 5.
Table 4.
Serial port selection (Motorola interface)
H = HIGH; L = LOW.
Chip Select
Function
CS = H
none
CS = L
UART select
Table 5.
Internal registers decoding
A2
A1
A0
Read mode
Write mode
General register set (THR/RHR, IER/ISR, MCR/MSR, FCR, LCR/LSR, EFCR, SPR)[1]
000Receive Holding Register
Transmit Holding Register
001Interrupt Enable Register
Interrupt Enable Register
010Interrupt Status Register
FIFO Control Register
011Line Control Register
Line Control Register
100Modem Control Register
Modem Control Register
101Line Status Register
Extra Feature Control Register (EFCR)
110Modem Status Register
n/a
111Scratchpad Register
Scratchpad Register
Baud rate register set (DLL/DLM)[2]
000LSB of Divisor Latch
LSB of Divisor Latch
001MSB of Divisor Latch
MSB of Divisor Latch
Second special register set (TXLVLCNT/RXLVLCNT)[3]
011Transmit FIFO Level Count
n/a
100Receive FIFO Level Count
n/a
Enhanced feature register set (EFR, Xon1/Xon2, Xoff1/Xoff2)[4]
010Enhanced Feature Register
Enhanced Feature Register
100Xon1 word
Xon1 word
101Xon2 word
Xon2 word
110Xoff1 word
Xoff1 word
111Xoff2 word
Xoff2 word
First extra feature register set (TXINTLVL/RXINTLVL, FLWCNTH/FLWCNTL)[5]
010Transmit FIFO Interrupt Level
Transmit FIFO Interrupt Level
100Receive FIFO Interrupt Level
Receive FIFO Interrupt Level
110Flow Control Count High
Flow Control Count High
111Flow Control Count Low
Flow Control Count Low
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