IDT77V400 Integrated Device Technology, IDT77V400 Datasheet - Page 24

• Manufacturer Part Number: IDT77V400
• Description: 1.24 Gbps Switching Memory **not Recommended For New Designs**
• Manufacturer: Integrated Device Technology

IDT77V011
Bit
Bit
DPI Tx
7
7
Register Content
Max Subports
Subport Width
Replace Subport 1
Bit Location
Byte Location
New Subport
x = Any valid subport address
Byte 0
Byte 0
6
6
0
0
0
5
DPI Tx (Incoming)
x
5
DPI Tx (Incoming)
1
1
In-Stream™ Subport
bits[4:0] of
Subport
Configuration
Register
0
4
x
4
Cell Interpreter
0x1E
0x5
0x5
0x2
0x1F
2
2
Process
In-Stream™
Cell
1
3
x
3
3
3
1
2
x
2
In-Stream™ Subport
In-Stream™ Cell Header byte 3 0x00
In-Stream™ Cell Header byte 2 0xE0
In-Stream™ Cell Header byte 1 0x01
In-Stream™ Cell Header byte 0 0xF0
4
4
Figure 19 Example Subport Programming
1
Figure 18 Transmit Subport Interpreter
Normal Cell
1
x
1
0
0
In-stream Cell
24 of 43
Replace Subport
bit5 of
Modify Tx Subport
Register
New Subport
bits[4:0]
Modify Tx Subport
Register
5-52
5-52
0x07 (matches bits[5:1] of In-Stream™ Cell Header byte 2
Bit
Filtered by Cell Interpreter
7
6
52
52
UTOPIA Tx (Outgoing)
5
1
Mux
1
4
1
3
1
2
1
1
UTOPIA Tx
5348drw20
5348drw19
0
March 15, 2001