System Generator for DSP リファレンス ガイド - Xilinx

プ ログ ラムを使用し たブ ロ ッ ク図の生成
>> xlShowParams('xbsIndex_r4/Accumulator')
-----------------------------------------------------
Xilinx Accumulator Block
Parameters Valid Settings
---------- --------------
operation: 'Add' or 'Subtract'
n_bits:
overflow: 'Wrap' or 'Saturate'
or 'Flag as error'
scale: '1' or '1/2' or '1/4' or '1/8'
or '1/16' or '1/32' or '1/64'
or '1/128' or '1/256'
rst: 'on' or 'off'
hasbypass: 'on' or 'off'
en: 'on' or 'off'
-----------------------------------------------------
set_param の使用例
set_param(blk,'operation','Add')
set_param(blk,'operation','Subtract')
set_param(blk,'n_bits','f(x)')
set_param(blk,'overflow','Wrap')
set_param(blk,'overflow','Saturate')
set_param(blk,'overflow','Flag as error')
set_param(blk,'scale','1')
set_param(blk,'scale','1/2')
set_param(blk,'scale','1/4')
set_param(blk,'scale','1/8')
set_param(blk,'scale','1/16')
set_param(blk,'scale','1/32')
set_param(blk,'scale','1/64')
set_param(blk,'scale','1/128')
set_param(blk,'scale','1/256')
set_param(blk,'rst','on')
set_param(blk,'rst','off')
set_param(blk,'hasbypass','on')
set_param(blk,'hasbypass','off')
set_param(blk,'en','on')
set_param(blk,'en','off')
>>
System Generator for DSP リファレンス ガイド japan.xilinx.com 447
リリース 9.2.00 2007 年 8 月
R