IOP16 Constants Unit

Constants ROM with Address Counter

• Constants ROM
  • 256-byte (max)
  • Null terminated strings
  • ROM "assembler"
• Address Counter
  • Loadable with start address
  • Auto-increment address

Programming

• Load start address (W)
• Read Data

Hook-up

• Add to Top Level VHDL code

Pins

• None - all internal

Signals

-- Decodes/Strobes
...
  signal w_ldConAdr				:	std_logic;
  signal w_rdConAdr				:	std_logic;
...
-- Interfaces
...
signal w_ConstsData			:	std_logic_vector(7 downto 0);

Hook-up Strobes/Read Mux

• Add to strobes and read mux