mds108 Zarlink Semiconductor, mds108 Datasheet - Page 17

• Manufacturer Part Number: mds108
• Description: Unmanaged 9-port 10/100 Mbps Ethernet Switch
• Manufacturer: Zarlink Semiconductor

12.7
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12.8
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•
12.9
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•
12.10
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•
Access: parallel interface and I
Address: h03
Access: parallel interface and I
Address: h04
Access: parallel interface and I
Address: h05
Access: parallel interface and I
Address: h06
FCR – Flooding Control Register
AVTCL – VLAN Type Code Register Low
AVTCH – VLAN Type Code Register High
AVPM – VLAN Priority Map
Bits [3:0]
Bits [6:4]
Bit 7
Bit [7:0]
Bit [7:0]
Map VLAN tag into 2 transmit queues (0 = low priority, 1 = high priority)
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Mapped priority of tag value 0
Mapped priority of tag value 1
Mapped priority of tag value 2
Mapped priority of tag value 3
Mapped priority of tag value 4
Mapped priority of tag value 5
Mapped priority of tag value 6
Mapped priority of tag value 7
U2MR
TimeBase
USE_TOS
VLANType_LOW
VLANType_HIGH
2
2
2
2
C, Read/Write
C, Read/Write
C, Read/Write
C, Read/Write
Maximum number of
flooded frames allowed
within any time interval
indicated by TimeBase bits
(violations are discarded)
000 = 100 2s 001 = 200 2s
010 = 400 2s 011 = 800 2s
100 = 1.6 2s 101 = 3.2 2s
110 = 6.4 2s 111 = 100 2s
Use TOS instead of VLAN
priority for IP packet
Lower 8 bits of VLAN type
code
Upper 8 bits of VLAN type
code
Zarlink Semiconductor Inc.
MDS108
17
(Default = 8)
(Default = 000)
(Default = 0)
(Default = 00)
(Default 0)
(Default 0)
(Default 0)
(Default 0)
(Default 0)
(Default 0)
(Default 0)
(Default 0)
(Default 81)
Data Sheet