cn8223 Mindspeed Technologies, cn8223 Datasheet - Page 109
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cn8223
Manufacturer Part Number
cn8223
Description
Atm Transmitter/receiver With Utopia Interface
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8223.pdf
(161 pages)
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CN8223
ATM Transmitter/Receiver with UTOPIA Interface
0x25, 0x26—RX_IDLE_12, RX_IDLE_34 (Receive Idle Header Registers)
The Receive Idle Header Value registers are located at addresses 0x25 and 0x26. These registers define ATM
idle cells for the cell receiver. Idle cells are counted and usually discarded.
0x27, 0x28—IDLE_MSK_12, IDLE_MSK_34 (Receive Idle Header Mask Register)
The Receive Idle Header Mask registers are located at addresses 0x27 and 0x28. These registers modify the
ATM cell screen in the RX_IDLE_12, 34 registers. Setting a bit in the Mask register causes the corresponding
bit in the received ATM idle cell header to be disregarded for screening. For example, setting IDLE_MSK_12,
bit 0 to 1, causes cells to be accepted as ATM idle cells with either 1 or 0 in the octet 2, bit 0 position.
100046D
15–8
7–0
15–8
7–0
15–8
7–0
15–8
7–0
Bit
Bit
Bit
Bit
Field
Field
Field
Field
Size
Size
Size
Size
8
8
8
8
8
8
8
8
Header Value—Octet 1
Header Value—Octet 2
Header Value—Octet 3
Header Value—Octet 4
Header Value—Octet 1
Header Value—Octet 2
Header Value—Octet 3
Header Value—Octet 4
Name
Name
Name
Name
Receive Port X ATM Header Match Value—Octet 1
Receive Port X ATM Header Match Value—Octet 2
Receive Port X ATM Header Match Value—Octet 3
Receive Port X ATM Header Match Value—Octet 4
Receive ATM Idle Cell Header Mask Value—Octet 1
Receive ATM Idle Cell Header Mask Valu—Octet 2
Receive ATM Idle Cell Header Mask Value—Octet 3
Receive ATM Idle Cell Header Mask Value—Octet 4
Conexant
Description
Description
Description
Description
3.5 Receive Control Registers
3.0 Registers
3-23
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