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IP113
TP port force limited capability mode
Preliminary, Specification subject to change without notice
IP113-DS-P07
Jul. 19, 2002
16
TP port of IP113 can be forced to be limited capability with
auto-negotiation by programming pin 70, 102 and 107. This
makes IP113 link at limited speed or duplex. The force mode
can be enabled only if the op mode setting is correct (see Note).
Otherwise, TP port performs auto-negotiation with all capability.
The detail behavior is illustrated in the following table.
When force mode is enabled, users have to check the setting
to make sure the traffic ok.
Note:
IP113 TP port force mode function is enabled only if the
following conditions exist:
Pin 98 MODE = 1’b0,
Pin 103, 104 OP[1:0] = 2’b11,
Pin 70 TP_FORCE = 1’b
All pass function
IP113 disables its hashing mechanism and forwards all good
packets, if pin 91 ALLPASS is pulled up. This function should
be turned on for normal operation.
A summary of TP port force mode
Remote node’s capability
Speed Duplex
X
X
IP113 TP’s capability
Speed
Duplex
100M/
10M
Half
100M
Full/ Half
100M
Full/ Half
100M
Full/ Half
100M
Full/ Half
100M
Half
100M
Half
100M
Half
100M
Half
10M
Full/ Half
10M
Full/ Half
10M
Full/ Half
10M
Full/ Half
10M
Half
10M
Half
10M
Half
10M
Half
Link result
IP113
The remote node’s
capability
100M/ Full 100M/ Full
100M/ Full 100M/ Half
100M/ Full 100M/ Full
100M/ Full 100M/ Half
Link fails
100M/ Half 100M/ Half
100M/ Half 100M/ Full
100M/ Half 100M/ Half
10M/ Full
10M/ Full 10M/ Half
10M/ Full
10M/ Full 10M/ Half
Link fails
10M/ Half 10M/ Half
10M/ Half 10M/ Full
10M/ Half 10M/ Half
Nway
Yes
TP_force
(pin 70)
0
TP_force_100
(pin 102)
X
TP_force_full
(pin 107)
X
Nway
Yes
Remote
Traffic
Full/
Ok
100M
100M
100M
100M
100M
100M
100M
100M
10M
10M
10M
10M
10M
10M
10M
10M
X means “don’t care”.
Full
Half
Full
Half
Full
Half
Full
Half
Full
Half
Full
Half
Full
Half
Full
Half
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
No
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Ok
Fail
Ok
Fail
Fail
Ok
Fail
Ok
Ok
Fail
Ok
Fail
Fail
Ok
Fail
Ok
10M/ Full
10M/ Full
Fail means “packet loss”.