3 pdi signal overview, Pdi signal overview, Table 10: pdi signal overview – BECKHOFF ET1200 User Manual
Page 22
Pin Description
III-12
Slave Controller
– ET1200 Hardware Description
3.1.3
PDI Signal Overview
Table 10: PDI signal overview
PDI
Signal
Dir.
Description
Digital I/O
I/O[15:0]
I/O/BD
Input/Output or Bidirectional data
LATCH_IN/SOF
I/O
External data latch signal/Start of Frame
OUTVALID/WD_TRIG
O
Output data is valid/Output event/ Watchdog Trigger
SPI
EEPROM_LOADED
O
PDI is active, EEPROM is loaded
SPI_CLK
I
SPI clock
SPI_DI
I
SPI data MOSI
SPI_DO
O
SPI data MISO
SPI_IRQ
O
SPI interrupt
SPI_SEL
I
SPI chip select
EBUS Bridge
EBUS(3)-RX-
LI-
EBUS LVDS receive signal -
EBUS(3)-RX+
LI+
EBUS LVDS receive signal +
EBUS(3)-TX-
LO-
EBUS LVDS transmit signal -
EBUS(3)-TX+
LO+
EBUS LVDS transmit signal +
PERR(3)
O
Error LED output (for testing)
LINKACT(3)
O
Link/Activity LED output
GPO[11:0]
O
General purpose output
MII Bridge
TX_D(3)[3:0]
O
MII transmit data
TX_ENA(3)
O
MII transmit enable
RX_CLK(3)
I
MII receive clock
RX_D(3)[3:0]
I
MII receive data
RX_DV(3)
I
MII receive data valid
RX_ERR(3)
I
MII receive error
LINK_MII(3)
I
PHY signal indicating a link
LINKACT(3)
O
Link/Activity LED output
PERR(3)
O
Error LED output (for testing)
GPO[1]
O
General purpose output
MI_CLK
O
PHY Management Interface clock
CLK25OUT
O
25 MHz clock source for Ethernet PHY