Altera FIR Compiler II MegaCore Function Manuel d'utilisateur télécharger pdf (Page 43)

Signal Direction Width Description

ast_sink_error Input 2 Error signal indicating Avalon-ST protocol

violations on the sink side:

• 00: No error

• 01: Missing SOP

• 10: Missing EOP

• 11: Unexpected EOP

Other types of errors are also marked as 11.

ast_source_ready Input 1 The downstream module asserts this signal if it is

able to accept data. This signal is not available when

backpressure is turned off.

ast_source_valid Output 1 The IP core asserts this signal when there is valid

data to output.

ast_source_channel Output Log

(number of

channels per

wire)

Indicates the index of the channel whose result is

presented at the data output.

ast_source_data Output Data width ×

number of

channel output

wires

(PhysChanOut)

FIR II IP core filter output. For a multichannel

operation (number of channel output wires > 1), the

least significant bits of ast_source_data are

mapped to xOut_0 of the FIR II IP core filter.

For example:

xOut_0[7:0] --> ast_source_data[7:0]

xOut_1[7:0] --> ast_source_data[15:8]

xOut_2[7:0]--> ast_source_data[23:16]

ast_source_sop Output 1 Marks the start of the outgoing FIR II IP core filter

result group. If '1', a result corresponding to channel

0 is output.

ast_source_eop Output 1 Marks the end of the outgoing FIR II IP core filter

result group. If '1', a result corresponding to channels

per wire N-1 is output, where N is the number of

channels per wire.

ast_source_error Output 2 Error signal indicating Avalon-ST protocol

violations on the source side:

• 00: No error

• 01: Missing SOP

• 10: Missing EOP

• 11: Unexpected EOP

Other types of errors are also marked as 11.

4-10

FIR II IP Core Signals

UG-01072

2014.12.15

Altera Corporation

FIR II IP Core Functional Description

Send Feedback

1 2 ... 38 39 40 41 42 43 44 45 46 47 48 ... 56 57

Commentaires sur ces manuels

Pas de commentaire

Altera FIR Compiler II MegaCore Function Manuel d'utilisateur Page 43

Commentaires sur ces manuels

Produits connexes et manuels pour Instruments de mesure Altera FIR Compiler II MegaCore Function