zl50400 Zarlink Semiconductor, zl50400 Datasheet - Page 68
zl50400
Manufacturer Part Number
zl50400
Description
Lightly Managed/unmanaged 9-port 10/100 M Ethernet Switch
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50400.pdf
(124 pages)
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12.3.1.5
CPU Address:h036
Accessed by CPU (R/W)
12.3.1.6
CPU Address:h037
Accessed by CPU (R/W)
12.3.2
12.3.2.1
I²C Address 028; CPU Address:h100
Accessed by CPU and I²C (R/W)
12.3.2.2
I²C Address 029; CPU Address:h101
Accessed by CPU and I²C (R/W)
Bits [2:0]:
Bits [7:3]:
Bits [7:0]:
Bits [6:0]:
Bit [7]:
Bits [7:0]:
(Group 1 Address) VLAN Group
Bit [5]:
Bit [6]:
Bit [7]:
BUF_LIMIT – Frame Buffer Limit
FCC – Flow Control Grant Period
AVTCL – VLAN Type Code Register Low
AVTCH – VLAN Type Code Register High
Frame Buffer Limit (max 4 KB). Multiple of 64 bytes (Default 0x40)
Reserved
VLANType_LOW: Lower 8 bits of the VLAN type code (Default 0x00)
VLANType_HIGH: Upper 8 bits of the VLAN type code (Default is 0x81)
Frame loopback.
0: Disable frame from sending back to its source port. (Default)
1: Allow frame to send back to its source port
In a regular ethernet switch, a packet should never be receive and forwarded to
the same port. Setting the bit allows it to happen.
This is not the same as an ingress MAC loopback. The destination MAC address
has to be stored (learned) in the MCT and associated with the originating source
port. The frame loopback will only work for unicast packets.
Reserved
Soft reset.
0: Normal operation (Default)
1: Reset. Not self clearing.
Flow Control Grant Period (Default 0x3)
Reserved
Zarlink Semiconductor Inc.
ZL50400
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