DS80C400 Maxim, DS80C400 Datasheet - Page 58
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DS80C400
Manufacturer Part Number
DS80C400
Description
The DS80C400 network microcontroller offers the highest integration available in an 8051 device
Manufacturer
Maxim
Datasheet
1.DS80C400.pdf
(97 pages)
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CSR Register:
Register Address:
Bit Names:
Reset State:
VLAN1 [15:0], VLAN1 Tag Identifier [15:0]. These 16 bits contain the VLAN1 tag that is compared against the
13th and 14th bytes of the incoming frame to determine whether it is a VLAN1 frame. If a non-zero match occurs,
the max frame length is extended from 1518 Bytes to 1522 Bytes.
CSR Register:
Register Address:
Bit Names:
Reset State:
VLAN2 [15:0], VLAN2 Tag Identifier [15:0]. These 16 bits contain the VLAN2 tag that is compared against the
13th and 14th bytes of the incoming frame to determine whether it is a VLAN2 frame. If a non-zero match occurs,
the max frame length is extended from 1518 Bytes to 1538 Bytes.
31
23
15
7
31
23
15
7
31
23
15
7
31
23
15
7
0
0
1
1
—
—
—
—
0
0
1
1
0
0
1
1
VLAN1 Tag
20h
—
—
VLAN2 Tag
24h
—
—
0
0
1
1
0
0
1
1
—
—
—
—
0
0
1
1
0
0
1
1
—
—
—
—
VLAN1 [15:8]
VLAN2 [15:8]
0
0
1
1
VLAN1 [7:0]
VLAN2 [7:0]
58 of 97
0
0
1
1
—
—
—
—
0
0
1
1
0
0
1
1
—
—
—
—
0
0
1
1
0
0
1
1
—
—
—
—
0
0
1
1
0
0
1
1
—
—
—
—
0
0
1
1
24
16
8
0
24
16
8
0
24
16
8
0
24
16
8
0