Seriallite ii clocking structure, Seriallite ii clocking structure –7, Xcvr – Altera SerialLite II IP Core User Manual

Page 61

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Chapter 4: Functional Description

4–7

Clocks and Data Rates

January 2014

Altera Corporation

SerialLite II MegaCore Function

User Guide

SerialLite II Clocking Structure

Figure 4–6

through

Figure 4–12

show the MegaCore function clock structures, which

vary based on the configuration parameters.

Figure 4–6. Full-Featured Clock Structure

Note to

Figure 4–6

:

(1) Individual recovered clocks (one per channel).

slite2_top

XCVR

Word Aligner (&
Training Pattern

Detection),

[Link State

Machine]

TX Core

n-bit

n-bit

RX Core

n-bit

Atlantic

#n SLITE2

High

Speed

Links

#m SLITE2

High

Speed

Links

Atlantic

Atlantic

Atlantic

Regular

Priority

Priority

Regular

PComp_FIFO_0

Byte

serializer

Byte

serializer

PComp_FIFO_n-1

Byte

deserializer

Byte

deserializer

n-bit

rxrdp_clk

rxhpp_clk

txhpp_clk

txrdp_clk

rrefclk

rcvd_clk0

rcvd_clkn-1

trefclk

tx_coreclk

RREFCLK

mreset_n

Reset Sync

tx_coreclk

rcvd_clk_out[n-1:0]

(1)

Freq Off

Removal

Freq Off

Removal

ATLFIFO

ATLFIFO

ATLFIFO

ATLFIFO

rrefclk

rrefclk

Training

Generator [Link

State Machine]

TXPLL

tx_coreclk

tx_coreclk

tx_coreclk

tx_coreclk

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