Package - data_link_lib

Summary

Name	Location	Description
data_link_lib	pkg_data_link.vhd#32

Constants

Count: 53

Name	Type	Default value	Description
C_CAPA_LINK_RST	integer	0	Link Reset bitfield in lane capability vector
C_CAPA_LANE_START	integer	1	Lane Start bitfield in lane capability vector
C_CAPA_DATA_SCRAM	integer	2	Data Scrambled bitfield in lane capability vector
C_CAPA_MULTI_LANE	integer	3	Multi-Lane bitfield in lane capability vector
C_CAPA_ROUTING_SW	integer	4	Routing Switch bitfield in lane capability vector
C_OUT_BUF_SIZE	integer	7	fifo depth = 2**7= 128 words of 32 bits
C_FCT_CC_SIZE	integer	8	FCT credit counter size: 4x64xM = 256
C_FCT_CC_MAX	unsigned	to_unsigned ( 255 , C_FCT_CC_SIZE )	FCT credit counter size: 4x64xM = 256
C_M_SIZE	integer	4	Size of M which is multiplier +1
C_MULT_SIZE	integer	3	Size of multiplier
C_CHANNEL_SIZE	integer	5	Channel number field
C_MID_BUF_SIZE	integer	7	fifo depth = 2**7= 128 words of 32 bits for the middle buffer (data)
C_MID_BUF_BC_SIZE	integer	3	fifo depth = 2**3= 8 words of 32 bits for the middle buffer (broadcast)
C_IN_BUF_SIZE	integer	8	fifo depth = 2**8= 256 words of 32 bits for the input buffer
C_DATA_LENGTH	integer	32	Data width
C_BYTE_BY_WORD_LENGTH	integer	4	Number of byte in a word
C_DATA_K_WIDTH	integer	C_DATA_LENGTH + C_BYTE_BY_WORD_LENGTH	Data + k character width
C_TYPE_FRAME_LENGTH	integer	4	Type of frame vector width
C_MAX_DATA_FRAME	unsigned ( 7 downto 0 )	to_unsigned ( 65 , 8 )	Maximum number of words in a Data frame
C_MAX_IDLE_FRAME	unsigned ( 7 downto 0 )	to_unsigned ( 64 , 8 )	Maximum number of words in an Idle frame
C_WORD_BC_FRAME	unsigned ( 1 downto 0 )	to_unsigned ( 2 , 2 )	Number of words in a Broadcast frame
C_BYTE_WIDTH	integer	8	Byte width
C_DATA_FRM	std_logic_vector ( 3 downto 0 )	“0001”	DATA Frame
C_BC_FRM	std_logic_vector ( 3 downto 0 )	“0010”	BROADCAST Frame
C_IDLE_FRM	std_logic_vector ( 3 downto 0 )	“0011”	IDLE Frame
C_FCT_FRM	std_logic_vector ( 3 downto 0 )	“0100”	FCT Frame
C_ACK_FRM	std_logic_vector ( 3 downto 0 )	“0101”	ACK Frame
C_NACK_FRM	std_logic_vector ( 3 downto 0 )	“0110”	NACK Frame
C_FULL_FRM	std_logic_vector ( 3 downto 0 )	“0111”	FULL Frame
C_RETRY_FRM	std_logic_vector ( 3 downto 0 )	“1000”	RETRY Frame
C_EEP_SYMB	std_logic_vector ( 07 downto 00 )	x”FE”	K30.7 EEP
C_EOP_SYMB	std_logic_vector ( 07 downto 00 )	x”FD”	K29.7 EOP
C_K28_7_SYMB	std_logic_vector ( 07 downto 00 )	x”FC”	K28.7 Comma
C_K28_3_SYMB	std_logic_vector ( 07 downto 00 )	x”7C”	K28.3 FCT
C_K28_2_SYMB	std_logic_vector ( 07 downto 00 )	x”5C”	K28.2 EBF
C_K28_0_SYMB	std_logic_vector ( 07 downto 00 )	x”1C”	K28.0 EDF
C_FILL_SYMB	std_logic_vector ( 07 downto 00 )	x”FB”	K27.7
C_SBF_SYMB	std_logic_vector ( 07 downto 00 )	x”5D”	D29.2 SBF
C_NACK_SYMB	std_logic_vector ( 07 downto 00 )	x”BB”	D27.5
C_SDF_SYMB	std_logic_vector ( 07 downto 00 )	x”50”	D16.2
C_FULL_SYMB	std_logic_vector ( 07 downto 00 )	x”6F”	D15.3
C_RETRY_SYMB	std_logic_vector ( 07 downto 00 )	x”87”	D7.4
C_SIF_SYMB	std_logic_vector ( 07 downto 00 )	x”84”	D4.2 SIF
C_ACK_SYMB	std_logic_vector ( 07 downto 00 )	x”A2”	D2.5
C_RESERVED_SYMB	std_logic_vector ( 07 downto 00 )	x”00”	D0.0
C_SDF_WORD	std_logic_vector ( 15 downto 00 )	C_SDF_SYMB & C_K28_7_SYMB	2 first bytes of a Start of Data Frame word
C_SBF_WORD	std_logic_vector ( 15 downto 00 )	C_SBF_SYMB & C_K28_7_SYMB	2 first bytes of a Start of Broadcast Frame word
C_SIF_WORD	std_logic_vector ( 15 downto 00 )	C_SIF_SYMB & C_K28_7_SYMB	2 first bytes of a Start of Idle Frame word
C_ACK_WORD	std_logic_vector ( 15 downto 00 )	C_ACK_SYMB & C_K28_7_SYMB	2 first bytes of a ACK word
C_NACK_WORD	std_logic_vector ( 15 downto 00 )	C_NACK_SYMB & C_K28_7_SYMB	2 first bytes of a NACK word
C_FULL_WORD	std_logic_vector ( 15 downto 00 )	C_FULL_SYMB & C_K28_7_SYMB	2 first bytes of a FULL word
C_RETRY_WORD	std_logic_vector	C_RESERVED_SYMB & C_RESERVED_SYMB & C_RETRY_SYMB & C_K28_7_SYMB	Retry word
C_RXERR_WORD	std_logic_vector	C_RESERVED_SYMB & C_RESERVED_SYMB & C_RESERVED_SYMB & C_RESERVED_SYMB	RXERR word

Types

Count: 5

Name	Definition	Description
int_array	array ( natural range <> ) of integer
vc_data_array	array ( natural range <> ) of std_logic_vector ( C_DATA_LENGTH - 1 downto 0 )
vc_k_array	array ( natural range <> ) of std_logic_vector ( C_BYTE_BY_WORD_LENGTH - 1 downto 0 )
vc_data_k_array	array ( natural range <> ) of std_logic_vector ( C_DATA_LENGTH + C_BYTE_BY_WORD_LENGTH - 1 downto 0 )
vc_m_val_array	array ( natural range <> ) of std_logic_vector ( C_M_SIZE - 1 downto 0 )

Subtypes

Count: 0

Functions

Count: 3

Name	Returned type	Description	Details
calculate_crc_16	STD_LOGIC_VECTOR	Calcluates the crc 16 bits	Details
calculate_crc_8	STD_LOGIC_VECTOR	Calcluates the crc 8 bits	Details
calculate_idle	STD_LOGIC_VECTOR	Calcluates Idle data	Details

Procedures

Count: 0

Global Signals

Count: 0

Global Variables

Count: 0

Component Definitions

Count: 0