Entity: SspDeframer

File: SspDeframer.vhd

Diagram

Description

Company : SLAC National Accelerator Laboratory

Description: SimpleStreamingProtocol - A simple protocol layer for inserting idle and framing control characters into a raw data stream. The input of

module should be attached to an 8b10b decoder.

This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to

the terms contained in the LICENSE.txt file.

Generics

Generic name	Type	Value
TPD_G	time	1 ns
RST_POLARITY_G	sl	'0'
RST_ASYNC_G	boolean	true
WORD_SIZE_G	integer	16
K_SIZE_G	integer	2
BRK_FRAME_ON_ERROR_G	boolean	true
SSP_IDLE_CODE_G	slv
SSP_IDLE_K_G	slv
SSP_SOF_CODE_G	slv
SSP_SOF_K_G	slv
SSP_EOF_CODE_G	slv
SSP_EOF_K_G	slv

Ports

Port name	Direction	Type	Description
clk	in	sl	Clock and Reset
rst	in	sl
dataKIn	in	slv(K_SIZE_G-1 downto 0)	Input Interface
dataIn	in	slv(WORD_SIZE_G-1 downto 0)
validIn	in	sl
decErrIn	in	sl
dispErrIn	in	sl	Unused
gearboxAligned	in	sl
dataOut	out	slv(WORD_SIZE_G-1 downto 0)	Output Interface
validOut	out	sl
errorOut	out	sl
idle	out	sl
sof	out	sl
eof	out	sl
eofe	out	sl

Signals

Name	Type	Description
r	RegType
rin	RegType

Constants

Name	Type	Value
WAIT_SOF_S	sl	'0'
WAIT_EOF_S	sl	'1'
REG_INIT_C	RegType	( state => WAIT_SOF_S, iDataOut => (others => '0'), iValidOut => '0', iSof => '0', iEof => '0', iEofe => '0', dataOut => (others => '0'), validOut => '0', errorOut => '0', idle => '0', sof => '0', eof => '0', eofe => '0')

Types

Name	Type	Description
RegType

Processes

comb: ( dataIn, dataKIn, decErrIn, gearboxAligned, r, rst, validIn )

seq: ( clk, rst )

Description
Sequential process