zl50409 Zarlink Semiconductor, zl50409 Datasheet - Page 71
zl50409
Manufacturer Part Number
zl50409
Description
Managed 9-port 10/100m Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50409.pdf
(135 pages)
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Port 8: (CPU Port)
Bits [4:3]
Bit [5]
Bits [7:6]
8/16-bit or Serial Only Modes
Bit [5:0]
Bits [7:6]
Serial + MII Mode
Bit [0]
Bit [1]
Bit [2]
Bit [3]
Bit [4]
00 - Enable Auto-Negotiation (Default)
01 - Limited Disable Auto-Negotiation
10 - Force Link Down
11 - Force Link Up
Asymmetric Flow Control Enable.
0 – Disable asymmetric flow control (Default)
1 – Enable Asymmetric flow control
When this bit is set and flow control is on (bit [0] = 0), the device does not send out
flow control frames, but it’s receiver interprets and processes flow control frames.
SS - Spanning tree state (IEEE 802.1D spanning tree protocol)
00 - Blocking:
01 - Listening:
10 - Learning:
11 - Forwarding:
Reserved
SS - Spanning tree state (IEEE 802.1D spanning tree protocol)
00 - Blocking:
01 - Listening:
10 - Learning:
11 - Forwarding:
Flow Control
0 - Enable (Default)
1 - Disable
Duplex Mode
Must be 0 - Full Duplex (Default)
Speed
0 - 100 Mbps (Default)
1 - 10 Mbps
1 - MII Port Up
0 - MII Port Down
Note: Bit [4] must be ‘1’.
Must be ‘1’.
This enables hardware state machine for auto-negotiation.
This disables hardware state machine for speed auto-negotiation (use
Disable the port. Hardware does not talk to PHY.
The configuration in ECR1Pn[2:0] is used for (speed/duplex/flow control)
setup. Hardware does not talk to PHY.
The configuration in ECR1Pn[2:0] is used for (speed/duplex/flow control)
setup.
ECR1Pn[2:0] for configuration). Hardware will still poll PHY for link status.
Frame is dropped
Frame is dropped
Frame is dropped. Source MAC address is learned.
Frame is forwarded. Source MAC address is learned. (Default)
Frame is dropped
Frame is dropped
Frame is dropped. Source MAC address is learned.
Frame is forwarded. Source MAC address is learned. (Default)
Zarlink Semiconductor Inc.
ZL50409
71
Data Sheet
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