文件名称:af-phy-0039.000.pdf
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This document describes a number of enhancements to the Universal Test & Operations PHY
Interface for ATM (UTOPIA) data path interface [1]. This document assumes familiarity with
the Level 1 Utopia document [1], which specifies the following :
1. an 8-bit wide data path, using an octet-level handshake, operating up to 25 MHz, with a
single PHY device
2. an 8-bit wide data path, using an cell-level handshake, operating up to 25 MHz, with a
single PHY device
3. a cell format and extra signals for a 16-bit wide data path for future use
The Level 1 Specification was designed to deal with the following PHY layer interfaces :
1.
2.
3.
4.
5.
155.52 Mbps (SONET/OC-3c)
155.52 Mbps (8B/10B block coded)
100 Mbps (4B/5B TAXI)
44.1236 Mbps (DS-3)
51.84 Mbps (OC-1)
We recommend use of this document in conjunction with the Level 1 Specification, since only
updates and changes to it are described here.-This document describes a number of enhancements to the Universal Test & Operations PHY
Interface for ATM (UTOPIA) data path interface [1]. This document assumes familiarity with
the Level 1 Utopia document [1], which specifies the following :
1. an 8-bit wide data path, using an octet-level handshake, operating up to 25 MHz, with a
single PHY device
2. an 8-bit wide data path, using an cell-level handshake, operating up to 25 MHz, with a
single PHY device
3. a cell format and extra signals for a 16-bit wide data path for future use
The Level 1 Specification was designed to deal with the following PHY layer interfaces :
1.
2.
3.
4.
5.
155.52 Mbps (SONET/OC-3c)
155.52 Mbps (8B/10B block coded)
100 Mbps (4B/5B TAXI)
44.1236 Mbps (DS-3)
51.84 Mbps (OC-1)
We recommend use of this document in conjunction with the Level 1 Specification, since only
updates and changes to it are described here.
Interface for ATM (UTOPIA) data path interface [1]. This document assumes familiarity with
the Level 1 Utopia document [1], which specifies the following :
1. an 8-bit wide data path, using an octet-level handshake, operating up to 25 MHz, with a
single PHY device
2. an 8-bit wide data path, using an cell-level handshake, operating up to 25 MHz, with a
single PHY device
3. a cell format and extra signals for a 16-bit wide data path for future use
The Level 1 Specification was designed to deal with the following PHY layer interfaces :
1.
2.
3.
4.
5.
155.52 Mbps (SONET/OC-3c)
155.52 Mbps (8B/10B block coded)
100 Mbps (4B/5B TAXI)
44.1236 Mbps (DS-3)
51.84 Mbps (OC-1)
We recommend use of this document in conjunction with the Level 1 Specification, since only
updates and changes to it are described here.-This document describes a number of enhancements to the Universal Test & Operations PHY
Interface for ATM (UTOPIA) data path interface [1]. This document assumes familiarity with
the Level 1 Utopia document [1], which specifies the following :
1. an 8-bit wide data path, using an octet-level handshake, operating up to 25 MHz, with a
single PHY device
2. an 8-bit wide data path, using an cell-level handshake, operating up to 25 MHz, with a
single PHY device
3. a cell format and extra signals for a 16-bit wide data path for future use
The Level 1 Specification was designed to deal with the following PHY layer interfaces :
1.
2.
3.
4.
5.
155.52 Mbps (SONET/OC-3c)
155.52 Mbps (8B/10B block coded)
100 Mbps (4B/5B TAXI)
44.1236 Mbps (DS-3)
51.84 Mbps (OC-1)
We recommend use of this document in conjunction with the Level 1 Specification, since only
updates and changes to it are described here.
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