BECKHOFF ET1200 - Manual (Page 5)

CONTENTS
Slave Controller – ET1200 Hardware Description III-V
CONTENTS
1 Overview 1
1.1 Frame processing order 2
1.2 Scope of this document 3
1.3 Revision/Build History 3
2 Features and Registers 4
2.1 Features 4
2.2 Register Overview 7
3 Pin Description 10
3.1 Overview 10
3.1.1 Pin Overview 10
3.1.2 Signal Overview 11
3.1.3 PDI Signal Overview 12
3.2 Configuration Pins 13
3.2.1 Chip mode 13
3.2.2 CPU_CLK MODE 13
3.2.3 TX Shift 13
3.2.4 CLK25OUT Enable 14
3.2.5 PHY Address Offset 14
3.2.6 SII EEPROM Size 14
3.3 General ET1200 Pins 15
3.4 SII EEPROM Interface Pins 15
3.5 Distributed Clocks SYNC/LATCH Pins, MII Management Data 16
3.6 LED Signals 16
3.7 Physical Ports and PDI Pins 17
3.7.1 MII Interface 18
3.7.2 EBUS Interface 18
3.7.3 PDI Pins 18
3.7.4 Port 0/1 and PDI[17:8] Signals 19
3.7.5 PDI[7:0] Signals 20
3.8 PDI Signal Pinout depending on selected PDI 20
3.8.1 Digital I/O Pin Out 21
3.8.2 SPI Pin Out 21
3.8.3 EBUS/MII bridge port (Logical port 3) 22
3.9 Power Supply 23
4 MII Interface 24
4.1 MII Interface Signals 24
4.2 PHY Address Configuration 25
4.3 TX Shift Compensation 26
4.4 Timing specifications 27