BECKHOFF ET1100 - Manual (Page 104)

Example Schematics
III-90 Slave Controller – ET1100 Hardware Description
9.3 Dual purpose configuration input/LED output pins
V
CC I/O
4
K
7
Pull-Up Pull-Down
Pin
Pin
4
K
7
Figure 47: Dual purpose configuration input/LED output pins
9.4 PHY Connection
Refer to chapter 3.8.2 for more information on special markings (!). Take care of proper configuration
of TX Shift, LINK_POL, and PHY addresses.
25
M
H
z
OSC_OUT
OSC_IN
ET1100
CLK25OUT1/2
Ethernet PHY
RX_DV
RX_DATA[3:0]
RX_ERR
TX_ENA
TX_DATA[3:0]
RX_CLK
RX_DV
RXD[3:0]
RX_ER
TX_EN
TXD[3:0]
RX_CLK
TX_CLK
CLK25
CRS
TX_ER
COL
LINK_MII LI NK_STATUS
25 MHz Option: one quartz oscillator for
ET1100 and PHYs
!
!
!
MI_DATA
MI_CLK
MDIO
MDC
4
K
7
V
CC I/O
W
PU
V
CC I/O
RESET RESET
Figure 48: PHY Connection