LAN9252SLASHML datasheet(223/329 Pages) MICROCHIP

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 2015 Microchip Technology Inc.

DS00001909A-page 223

LAN9252

12.14 EtherCAT Core CSR Registers (Indirectly Addressable)

This section details the indirectly addressable EtherCAT Core CSRs, which are accessed via the directly addressable

EtherCAT CSR Interface Data Register (ECAT_CSR_DATA) and EtherCAT CSR Interface Command Register

(ECAT_CSR_CMD). For information on how to access EtherCAT registers, refer to Section 12.11, "EtherCAT CSR and

Process Data RAM Access," on page 208. The directly addressable EtherCAT registers are detailed in Section 12.13,

"EtherCAT CSR and Process Data RAM Access Registers (Directly Addressable)," on page 214.

Note:

For EtherCAT Core CSR registers longer than one byte, the LSB has the lowest address and the MSB the

highest address.

The read/write behavior of specific EtherCAT Core register bits may differ depending on how the register

is accessed. Each EtherCAT Core register includes “ECAT Type” and “PDI Type” columns, which provide

the bit/field type for register accesses via an EtherCAT Master Node or Process Data Interface (SPI / Host

Bus), respectively.

TABLE 12-15: ETHERCAT CORE CSR REGISTERS

Address

ESC Information

0000h

Type Register

0001h

Revision Register

0002h-0003h Build Register

0004h

FMMUs Supported Register

0005h

SyncManagers Supported Register

0006h

RAM Size Register

0007h

Port Descriptor Register

0008h-0009h ESC Features Supported Register

Station Address

0010h-0011h Configured Station Register

0012h-0013h Configured Station Alias Register

Write Protection

0020h

Write Register Enable Register

0021h

Write Register Protection Register

0030h

ESC Write Register Enable Register

0031h

ESC Write Register Protection Register

Data Link Layer

0040h

ESC Reset ECAT Register

0041h

ESC Reset PDI Register

0100h-0103h ESC DL Control Register

0108h-0109h Physical Read/Write Offset Register

0110h-0111h ESC DL Status Register

Application Layer

0120h-0121h AL Control Register

0130h-0131h AL Status Register

0134h-0135h AL Status Code Register

0138h

RUN LED Override Register

0139h

Reserved

PDI (Process Data Interface)

0140h

PDI Control Register

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