ZL50418GKC ZARLINK [Zarlink Semiconductor Inc], ZL50418GKC Datasheet - Page 63
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ZL50418GKC
Manufacturer Part Number
ZL50418GKC
Description
Managed 16-Port 10/100 M + 2-Port 1 G Ethernet Switch
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.ZL50418GKC.pdf
(163 pages)
- Current page: 63 of 163
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14.3.2
I
Accessed by CPU and serial interface (R/W)
2
C Address: 01B-035; CPU Address:0001+2xN (N = port number)
Bit [4:3]
Bit [5]
Bit [7:6]
ECR2Pn: Port N Control Register
Bit [0]:
Bit [1]:
Bit [2]:
Bit [3]:
Bit [5:4:]
7
Security En
•
•
Asymmetric Flow Control Enable.
SS - Spanning tree state (802.1D spanning tree protocol) Default is 11 .
- 00 – Automatic Enable Auto Neg. - This enables hardware state machine for
- 01 - Limited Disable auto Neg. This disables hardware for speed auto-negotiation.
- 10 - Link Down. Force link down (disable the port).
- 11 - Link Up. The configuration in ECR1[2:0] is used for (speed/half duplex/full duplex/flow
- 0 – Disable asymmetric flow control
- 01 – Enable Asymmetric flow control
- When this bit is set, and flow control is on (bit [0] = 0), don’t send out a flow control frame.
- 00 – Blocking:
- 01 - Listening:
- 10 - Learning:
- 11 - Forwarding: Frame is forwarded. Source MAC address is learned.
auto-negotiation.
Hardware Poll MII for link status.
control) setup.
But MAC receiver interprets and processes flow control frames.
•
•
•
•
•
•
•
•
•
•
•
6
Filter untagged frame ( Default 0 )
Filter Tag frame ( Default 0 )
Learning Disable (Default 0)
Must be ‘1’
QOS mode selection (Default 00)
Determines which of the 4 sets of QoS settings is used for 10/100 ports.
Note that there are 4 sets of per-queue byte thresholds, and 4 sets of
WFQ ratios programmed. These bits select among the 4 choices for each
10/100 port. Refer to QOS Application Note.
00: select class byte limit set 0 and classes WFQ credit set 0
01: select class byte limit set 1 and classes WFQ credit set 1
10: select class byte limit set 2 and classes WFQ credit set 2
11: select class byte limit set 3 and classes WFQ credit set 3
- 0: Disable
- 1: All untagged frames from this port are discarded or follow security option
- 0: Disable
- 1: All tagged frames from this port are discarded or follow security option when
- 1 Learning is disabled on this port
- 0 Learning is enabled on this port
when security is enable
security is enable
5
QoS Sel
Frame is dropped
Frame is dropped
Frame is dropped. Source MAC address is learned.
4
Zarlink Semiconductor Inc.
ZL50418
3
Reserve
63
2
DisL
1
Ftf
0
Futf
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