Altera POS-PHY Level 2 and 3 Compiler Instrukcja Użytkownika Pobierz pdf (Strona 29)

Preliminary

3. Functional Description

The POS-PHY Level 2 and 3 Compiler has two interfaces—an ‘A’ interface and one or

many ‘B’ interfaces. Table 3–1 shows the possible interfaces.

Figure 3–1 and 3–2 show example interfaces.

1 MegaCore

function data flow direction is from source to sink, that is, data flows from

a physical layer (PHY) receive source to a link receive sink. A MegaCore function

must have a minimum of one source and one sink interface.

Table 3–1. Possible Interfaces

‘A’ Interface ‘B’ Interface

PHY level 3 (SPHY or MPHY)

PHY level 2 (SPHY or MPHY)

Link level 3 (SPHY or MPHY)

Link level 2 (SPHY or MPHY)

PHY level 3 (SPHY only)

PHY level 2 (SPHY only)

Link level 3 (SPHY only)

Link level 2 (SPHY only)

Atlantic master (SPHY only)

Atlantic slave (SPHY only)

Figure 3–1. Example MegaCore Function Interfaces

'A' Sink

Interface

FIFO

'B1' Source

Interface

FIFO

MegaCore Function

'B2' Source

Interface

FIFO

'B3' Source

Interface

FIFO

' Source

Interface

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 61 62

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Altera POS-PHY Level 2 and 3 Compiler Instrukcja Użytkownika Strona 29