I2C Interface 24-2 Freescale Semiconductor 24.1.2 Overview I
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� MCF5280CVM66
寤犲晢锛� Freescale Semiconductor
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 397/766闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC MPU 32BIT COLDF 256-MAPBGA
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 90
绯诲垪锛� MCF528x
鏍稿績铏曠悊鍣細 Coldfire V2
鑺珨灏哄锛� 32-浣�
閫熷害锛� 66MHz
閫i€氭€э細 CAN锛孍BI/EMI锛屼互澶恫(w菐ng)锛孖²C锛孲PI锛孶ART/USART
澶栧湇瑷�(sh猫)鍌欙細 DMA锛孡VD锛孭OR锛孭WM锛學DT
杓稿叆/杓稿嚭鏁�(sh霉)锛� 142
绋嬪簭瀛樺劜(ch菙)鍣ㄩ鍨嬶細 ROMless
RAM 瀹归噺锛� 64K x 8
闆诲 - 闆绘簮 (Vcc/Vdd)锛� 2.7 V ~ 3.6 V
鏁�(sh霉)鎿�(j霉)杞�(zhu菐n)鎻涘櫒锛� A/D 8x10b
鎸暕鍣ㄥ瀷锛� 澶栭儴
宸ヤ綔婧害锛� -40°C ~ 85°C
灏佽/澶栨锛� 256-LBGA
鍖呰锛� 鎵樼洡
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I2C Interface
24-2
Freescale Semiconductor
24.1.2
Overview
I2C is a two-wire, bidirectional serial bus that provides a simple, efficient method of data exchange,
minimizing the interconnection between devices. This bus is suitable for applications that require
occasional communication between many devices over a short distance. The flexible I2C bus allows
additional devices to connect to the bus for expansion and system development.
The interface operates up to 100 Kbps with maximum bus loading and timing. The device is capable of
operating at higher baud rates, up to a maximum of the internal bus clock divided by 20, with reduced bus
loading. The maximum communication length and the number of devices connected are limited by a
maximum bus capacitance of 400 pF.
The I2C system is a true multiple-master bus; it uses arbitration and collision detection to prevent data
corruption in the event that multiple devices attempt to control the bus simultaneously. This feature
supports complex applications with multiprocessor control and can be used for rapid testing and alignment
of end products through external connections to an assembly-line computer.
NOTE
The I2C module is compatible with the Philips I2C bus protocol. For
information on system configuration, protocol, and restrictions, see The I2C
Bus Specification, Version 2.1.
NOTE
The GPIO module must be configured to enable the peripheral function of
prior to configuring the I2C module.
24.1.3
Features
The I2C module has these key features:
Compatibility with I2C bus standard version 2.1
Multiple-master operation
Software-programmable for one of 50 different serial clock frequencies
Software-selectable acknowledge bit
Interrupt-driven, byte-by-byte data transfer
Arbitration-lost interrupt with automatic mode switching from master to slave
Calling address identification interrupt
START and STOP signal generation/detection
Repeated START signal generation
Acknowledge bit generation/detection
Bus-busy detection
MCF5282 and MCF5216 ColdFire Microcontroller User鈥檚 Manual, Rev. 3
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
VE-234-CU CONVERTER MOD DC/DC 48V 200W
VE-J6B-IX-S CONVERTER MOD DC/DC 95V 75W
MCF5280CVF66 IC MPU 32BIT 66MHZ 256-BGA
VE-J63-IX-S CONVERTER MOD DC/DC 24V 75W
VE-233-CU CONVERTER MOD DC/DC 24V 200W
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