Beckhoff ET1200 User Manual download pdf (Page 3)

DOCUMENT HISTORY

Slave Controller – ET1200 Hardware Description III-III

DOCUMENT HISTORY

Version

Comment

0.1

Initial release

0.2

Editorial changes

0.3

0.4

Abbreviations, editorial changes

0.5

 Removed RJ45 description (will become part of Section I)

 EEPROM_LOADED pull-down resistor recommendation added

 Frame processing order example corrected

 I

C EEPROM interface description added

 MII management interface description added

 Corrected Process RAM size in Register Overview

 Revision/Build information added

 Recommendations for unused input pins added (should not be left open)

 EEPROM_SIZE description corrected from Kbyte to Kbit, possible EEPROM

sizes range from 16 Kbit to 4 Mbit

 RoHS compliance added

 Autonegotiation is mandatory for ESCs

 Description of power supply options added

 Electrical characteristics added

 SPI_IRQ delay added

 TX Shift timing diagram and description added

 Pin overview table corrected

 Internal 27 kΩ PU/PD resistors at EBUS-RX pins added

 LED polarity depending on configuration pin setting described

 Recommendation for voltage stabilization capacitors added

 Description of Digital I/O behavior on watchdog expiration enhanced

 EBUS ports are open failsafe

 Reset example schematic added

 Ethernet PHY requirements and PHY connection schematic added

 MI_DATA pull-up requirement added

 Editorial changes

1.0

 RUN, LINKACT/x) and PERR(x) LED activity level corrected: active high if

pulled down, active low if pulled up

 TX Shift description: timing figures corrected, minor changes, moved to MII

Interface chapter

 Pin/Signal description overview added

 PERR(x) LEDs are only for testing/debugging

 Electrical characteristics enhanced

 DC Characteristics enhanced: added V

Reset Core

, V

 Digital I/O and SPI timing characteristics revised

 DC SYNC/LATCH signal description and timing characteristics added

 MII Interface chapter and MII timing characteristics added

 EBUS Interface chapter added

 PHY requirements, EEPROM Interface description and MII Management

Interface description moved to Section I

 Ambient temperature range instead of junction temperature range

 Editorial changes

1 2 3 4 5 6 7 8 ... 69 70

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