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MC68HC55D

Freescale Semiconductor

Two-Channel CMOS ASIC

Order Number: MC68HC55 Rev. 2 MC68HC55/D Technical Data Two-Channel CMOS ASIC Device www.DataSheet4U.com Section 1. DS...


Freescale Semiconductor

MC68HC55D

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Order Number: MC68HC55 Rev. 2 MC68HC55/D Technical Data Two-Channel CMOS ASIC Device www.DataSheet4U.com Section 1. DSI/D (Distributed System Interface – Digital) 1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2 General Description of the DSI System. . . . . . . . . . . . . . . . .3 1.3 Overall DSI System Connections . . . . . . . . . . . . . . . . . . . . .3 Section 2. MC68HC55CD Pin Assignments and Descriptions 2.1 Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2.2 Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Section 3. Registers and Bit Descriptions 3.1 DSI Channel 0 Data Registers . . . . . . . . . . . . . . . . . . . . . . .9 3.2 DSI Channel 1 Data Registers . . . . . . . . . . . . . . . . . . . . . .10 3.3 DSI Status Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 3.4 DSI Channel Control Registers . . . . . . . . . . . . . . . . . . . . . .13 3.5 DSI Channel Enable Bits. . . . . . . . . . . . . . . . . . . . . . . . . . .17 Section 4. Functional Description 4.1 Reset Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 4.2 Abort Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 4.3 Enable (Disable) Function . . . . . . . . . . . . . . . . . . . . . . . . . .20 4.4 SPI Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 4.5 DSI/D to DSI/P Commun...




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