nw_usb_pkg Package Reference

Package >> nw_usb_pkg

Types
t_usb_pkt_type	( DATA , SOF , TOKEN , SPLIT , HANDSHAKE )
	USB packet type.

Records
t_usb_data_pkt
pid	std_logic_vector ( 7 downto 0 )
	PID.
data	t_slv_arr ( 0 to 1023 ) ( 7 downto 0 )
	data
data_len	natural range 0 to 1024
	Data length (bytes)
crc16	std_logic_vector ( 15 downto 0 )
	CRC16.
t_usb_sof_pkt
pid	std_logic_vector ( 7 downto 0 )
	PID.
frame_number	std_logic_vector ( 10 downto 0 )
	Frame number.
crc5	std_logic_vector ( 4 downto 0 )
	CRC5.
t_usb_handshake_pkt
pid	std_logic_vector ( 7 downto 0 )
	PID.
t_usb_token_pkt
pid	std_logic_vector ( 7 downto 0 )
	PID.
addr	std_logic_vector ( 6 downto 0 )
	Address.
endp	std_logic_vector ( 3 downto 0 )
	Endpoint.
crc5	std_logic_vector ( 4 downto 0 )
	CRC5.
t_usb_split_pkt
pid	std_logic_vector ( 7 downto 0 )
	PID.
hub_addr	std_logic_vector ( 6 downto 0 )
	Hub address.
sc	std_logic
	Start/complete.
port_number	std_logic_vector ( 6 downto 0 )
	port number
s	std_logic
	Start.
e_u	std_logic
	End (start-split) / Unused (complete-split)
et	std_logic_vector ( 1 downto 0 )
	Endpoint type.
crc5	std_logic_vector ( 4 downto 0 )
	CRC5.
t_usb_packet
pkt_type	t_usb_pkt_type
	USB packet type contained in record.
data_pkt	t_usb_data_pkt
	Data packet record.
sof_pkt	t_usb_sof_pkt
	SOF packet record.
handshake_pkt	t_usb_handshake_pkt
	Handshake record.
token_pkt	t_usb_token_pkt
	Token record.
split_pkt	t_usb_split_pkt
	Start/complete-split token record.

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The documentation for this design unit was generated from the following file:

• nw_usb/src/nw_usb_pkg.vhd