参数资料
型号: ZL50418/GKC
厂商: ZARLINK SEMICONDUCTOR INC
元件分类: 网络接口
英文描述: DATACOM, LAN SWITCHING CIRCUIT, PBGA553
封装: 37.50 X 37.50 MM, 2.33 MM HEIGHT, MS-034, HSBGA-553
文件页数: 140/155页
文件大小: 1928K
代理商: ZL50418/GKC
ZL50418
Data Sheet
85
Zarlink Semiconductor Inc.
12.3
Indirectly Accessed Registers
12.3.1
(Group 0 Address) MAC Ports Group
12.3.1.1
ECR1Pn: Port n Control Register 1
I2C Address 000+n; CPU Address:0000+2n (n = port number)
Accessed by CPU, serial interface and I2C (R/W)
12.3.1.2
ECR2Pn: Port n Control Register 2
I2C Address: 01B+n; CPU Address:0001+2n (n = port number)
Accessed by CPU and serial interface (R/W)
76
5
4
0
SS
A-FC
Port Mode
Bit [0]
1 - Flow Control Disabled
0 - Flow Control Enabled (Default)
Bit [1]
1 - Half Duplex - Only in 10/100 mode
0 - Full Duplex (Default)
Bit [2]
1 - 10 Mbps
0 - 100 Mbps (Default)
Bit [4:3]
00 - Enable Auto-Negotiation
This enables hardware state machine for auto-negotiation. (Default)
01 - Limited Disable Auto-Negotiation
This disables hardware state machine for speed auto-negotiation (use
ECR1Pn[2:0] for configuration). Hardware will still poll PHY for link status.
10 - Force Link Down
Disable the port. Hardware does not talk to PHY.
11 - Force Link Up
The configuration in ECR1Pn[2:0] is used for (speed/duplex/flow control)
setup. Hardware does not talk to PHY.
Bit [5]
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.
Bit [7:6]
SS - Spanning tree state (IEEE 802.1D spanning tree protocol)
00 - Blocking:
Frame is dropped
01 - Listening:
Frame is dropped
10 - Learning:
Frame is dropped. Source MAC address is learned.
11 - Forwarding:
Frame is forwarded. Source MAC address is learned. (Default)
76
5
4
3
2
1
0
Security En
QoS Sel
DisL
Ftf
Futf
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