參數(shù)資料
型號(hào)： CX24118A-12Z
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Advanced Modulation Digital Satellite Tuner
中文描述： SPECIALTY CONSUMER CIRCUIT, PQCC36
封裝： 6 X 6 MM, 0.85 MM HEIGHT, PLASTIC, SOT1092-1, HVQFN-36
文件頁(yè)數(shù)： 37/45頁(yè)
文件大?。?/td> 494K
代理商： CX24118A-12Z
42
XMEGA A1U [DATASHEET]
Atmel-8385H-AVR-ATxmega64A1U-128A1U-Datasheet–AVR–04/2014
22.
TWI – Two-Wire Interface
22.1
Features
Four identical two-wire interface peripherals
Bidirectional two-wire communication interface
Phillips I2C compatible
System Management Bus (SMBus) compatible
Bus master and slave operation supported
Slave operation
Single bus master operation
Bus master in multi-master bus environment
Multi-master arbitration
Flexible slave address match functions
7-bit and general call address recognition in hardware
10-bit addressing supported
Address mask register for dual address match or address range masking
Optional software address recognition for unlimited number of addresses
Slave can operate in all sleep modes, including power-down
Slave address match can wake device from all sleep modes, including power-down
100kHz and 400kHz bus frequency support
Slew-rate limited output drivers
Input filter for bus noise and spike suppression
Support arbitration between start repeated start and data bit (SMBus)
Slave arbitration allows support for address resolve protocol (ARP) (SMBus)
22.2
Overview
The two-wire interface (TWI) is a bidirectional, two-wire communication interface. It is I
2C and System Management Bus
(SMBus) compatible. The only external hardware needed to implement the bus is one pull-up resistor on each bus line.
A device connected to the bus must act as a master or a slave. The master initiates a data transaction by addressing a
slave on the bus and telling whether it wants to transmit or receive data. One bus can have many slaves and one or
several masters that can take control of the bus. An arbitration process handles priority if more than one master tries to
transmit data at the same time. Mechanisms for resolving bus contention are inherent in the protocol.
The TWI module supports master and slave functionality. The master and slave functionality are separated from each
other, and can be enabled and configured separately. The master module supports multi-master bus operation and
arbitration. It contains the baud rate generator. Both 100kHz and 400kHz bus frequencies are supported. Quick
command and smart mode can be enabled to auto-trigger operations and reduce software complexity.
The slave module implements 7-bit address match and general address call recognition in hardware. 10-bit addressing is
also supported. A dedicated address mask register can act as a second address match register or as a register for
address range masking. The slave continues to operate in all sleep modes, including power-down mode. This enables
the slave to wake up the device from all sleep modes on TWI address match. It is possible to disable the address
matching to let this be handled in software instead.
The TWI module will detect START and STOP conditions, bus collisions, and bus errors. Arbitration lost, errors, collision,
and clock hold on the bus are also detected and indicated in separate status flags available in both master and slave
modes.
It is possible to disable the TWI drivers in the device, and enable a four-wire digital interface for connecting to an external
TWI bus driver. This can be used for applications where the device operates from a different V
CC voltage than used by
the TWI bus.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CX24118A-12Z,518 功能描述:調(diào)諧器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
CX24118A-12Z,557 功能描述:調(diào)諧器 IC SATELLITE TUNER DGTL RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度:
CX24123 制造商:CONEXANT 制造商全稱:CONEXANT 功能描述:Demodulator and FEC Decoder Low-power QPSK demodulator for worldwide satellite set-top box applications
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CX24123-11,557 功能描述:IC DEMODULATOR/DECODER 64-TQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
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