Description: Load DAC by SPI protocol
-- Unit provides serial load of DAC trough SPI 3-wire serial interface
-- It sends 24-bit word, format of the word:
-- 4-bit command: C3-C0, 4x don t care bits, 12-bit data: d11-d0, 4x don t care bits
--
-- Serial interface outputs:
-- SDI - Serial Interface Data sent to DAC
-- SCK - Serial Interface Clock
-- CSLD - Serial Interface Chip Select/Load
--
-- DAC word length = 24 bit:
-- --------------------------
-- MSB
-- 4 bits - DAC command
-- 4 bits - don t care values
-- 12 bits - "gain" word
-- 4 bits - don t care values
-- LSB
-- --------------------------
--
-- Dependencies:
--
-- This unit needs the following files:
-- 1) counter.vhd
-- 2) SEQUENCE.vhd
-- 3) rising.vhd
-- 4) falling.vhd
-- 5) Dline1.vhd
-- 4) useful.vhd
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
To Search:
File list (Check if you may need any files):
counter.vhd
DacLoad.vhd
dline1.vhd
falling.vhd
rising.vhd
SEQUENCE.vhd
Download