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ZIOL2201 Datasheet(PDF) 32 Page - List of Unclassifed Manufacturers |
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ZIOL2201 Datasheet(HTML) 32 Page - List of Unclassifed Manufacturers |
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32 / 91 page  ZIOL2xxx – IC Family IO-Link compliant HV Line Driver IC Family Data Sheet January 31, 2012 © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.2.1 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to changes without notice. 32 of 90 Figure 3.10 General timing of a byte transfer SPI feature summary: The interface works in SPI-slave mode only The timing follows the scheme in Figure 3.10 which defines ▬ Clock Polarity CPOL = 1 (clock is idle high) ▬ Clock Phase CPHA = 1 (data captured with 2 nd clock edge after SPI_EN_L went low; data are read on clock’s rising edge and data are changed on a falling edge) Maximum clock frequency of the SPI_CLK shall not exceed 4 MHz for accessing the on-chip EEPROM and 10 MHz for other SPI accesses SPI clock duty cycle: 40…60% MSB will be transmitted first If access exceeds last byte, a wrap will NOT happen – the last byte will be written correctly, rest will be disregarded Block write (access to more than one address location) is only supported for the configuration-register area but not for the EEPROM area. Block read is supported for both the EEPROM and configuration-register area. During enabling the SPI (SPI_EN_L = low ) the input lines of the COM driver are latched, so the COM driver does not change its output state while SPI is enabled. The SPI telegram structure can be divided into three types of SPI accesses: READ: read access to register file or EEPROM, block access possible |
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