BECKHOFF ET1100 - Manual (Page 29)

Pin Description
Slave Controller – ET1100 Hardware Description III-15
3.2.2.1 Configurations with 2 ports
For configurations with 2 ports, logical ports 0 and 1 are used. The port signals are available at
physical ports 0 and 1, depending on the port configuration. P_MODE[1:0] has to be set to 00.
P_CONF[1:0] determine the physical layer of logical ports (1:0). P_CONF[3:2] are not used,
nevertheless, P_ CONF[2] should not be left open (connection to GND recommended). P_CONF[3]
should be pulled down if possible (denoted with ‘-‘ in the table), if your application allows this.
Table 13: Configurations with 2 ports (P_MODE[1:0]=00)
Logical port Physical port P_CONF
[3:0]
1 0 1 0
EBUS
(1)
EBUS
(0)
EBUS
(1)
EBUS
(0)
-000
EBUS
(1)
MII
(0)
EBUS
(1)
MII
(0)
-001
MII
(1)
EBUS
(0)
EBUS
(0)
MII
(1)
-010
MII
(1)
MII
(0)
MII
(1)
MII
(0)
-011
3.2.2.2 Configurations with 3 ports
For configurations with 3 ports, either logical ports 0, 1, and 2 (P_MODE[1:0]=01) or logical ports 0, 1,
and 3 (P_MODE[1:0]=10) are used. The port signals are available at physical ports 0, 1 and 2,
depending on the port configuration. P_CONF[2:0] determine the physical layer of logical ports 2, 1, 0,
or logical ports 3, 1, 0, depending on the P_MODE settings (P_CONF[2] is either used for logical port
2 or logical port 3). P_CONF[3] should be pulled down if possible (denoted with ‘-‘ in the tables), if your
application allows this.
Table 14: Configurations with 3 ports (ports 0,1, and 2; P_MODE[1:0]=01)
Logical port Physical port P_CONF
[3:0]
2 1 0 2 1 0
EBUS
(2)
EBUS
(1)
EBUS
(0)
EBUS
(2)
EBUS
(1)
EBUS
(0)
-000
EBUS
(2)
EBUS
(1)
MII
(0)
EBUS
(2)
EBUS
(1)
MII
(0)
-001
EBUS
(2)
MII
(1)
EBUS
(0)
EBUS
(2)
EBUS
(0)
MII
(1)
-010
EBUS
(2)
MII
(1)
MII
(0)
EBUS
(2)
MII
(1)
MII
(0)
-011
MII
(2)
EBUS
(1)
EBUS
(0)
EBUS
(1)
EBUS
(0)
MII
(2)
-100
MII
(2)
EBUS
(1)
MII
(0)
EBUS
(1)
MII
(2)
MII
(0)
-101
MII
(2)
MII
(1)
EBUS
(0)
EBUS
(0)
MII
(2)
MII
(1)
-110
MII
(2)
MII
(1)
MII
(0)
MII
(2)
MII
(1)
MII
(0)
-111
Table 15: Configurations with 3 ports (ports 0, 1, and 3; P_MODE[1:0]=10)
Logical port Physical port P_CONF
[3:0]
3 1 0 2 1 0
EBUS
(3)
EBUS
(1)
EBUS
(0)
EBUS
(3)
EBUS
(1)
EBUS
(0)
-000
EBUS
(3)
EBUS
(1)
MII
(0)
EBUS
(3)
EBUS
(1)
MII
(0)
-001
EBUS
(3)
MII
(1)
EBUS
(0)
EBUS
(3)
EBUS
(0)
MII
(1)
-010
EBUS
(3)
MII
(1)
MII
(0)
EBUS
(3)
MII
(1)
MII
(0)
-011
MII
(3)
EBUS
(1)
EBUS
(0)
EBUS
(1)
EBUS
(0)
MII
(3)
-100
MII
(3)
EBUS
(1)
MII
(0)
EBUS
(1)
MII
(3)
MII
(0)
-101
MII
(3)
MII
(1)
EBUS
(0)
EBUS
(0)
MII
(3)
MII
(1)
-110
MII
(3)
MII
(1)
MII
(0)
MII
(3)
MII
(1)
MII
(0)
-111