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Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ³í¹®Áö > Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) SoC ¼³°è¸¦ À§ÇÑ À¯È¿ ºñÆ® ¹æ½ÄÀÇ ºñµ¿±â FIFO ¼³°è
¿µ¹®Á¦¸ñ(English Title) Design of an Asynchronous FIFO for SoC Designs Using a Valid Bit Scheme
ÀúÀÚ(Author) ÀÌ¿ëȯ   Yong-hwan Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 09 NO. 08 PP. 1735 ~ 1740 (2005. 12)
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(Korean Abstract)
SoC ¼³°è¿¡¼­´Â ¸¹Àº ¼öÀÇ IP µéÀÌ ÇϳªÀÇ Ä¨¿¡ ÁýÀûµÇ¸ç À̵éÀº °¢°¢ ¼­·Î ´Ù¸¥ ÁÖÆļö·Î µ¿ÀÛÇØ¾ß °¡Àå È¿À²ÀûÀ¸·Î µ¿ÀÛÇÒ ¼ö ÀÖ´Ù. ÀÌ·¯ÇÑ IPµéÀ» ¿¬°áÇϱâ À§Çؼ­´Â ºñµ¿±â Ŭ·° µ¿ÀÛ »çÀÌ¿¡ ¹öÆÛ ¿ªÇÒÀ» ÇÒ ¼ö ÀÖ´Â ¹Ùµ¿±â FIFO°¡ ÇʼöÀûÀÌ´Ù. ±×·¯³ª ¾ÆÁ÷ ¸¹Àº ¼öÀÇ ºñµ¿±â FIFO°¡ À߸ø ¼³°èµÇ°í ÀÖÀ¸¸ç ÀÌ¿¡ µû¸¥ ºñ¿ëÀÌ ½É°¢ÇÏ´Ù. ÀÌ¿¡ º» ³í¹®¿¡¼­´Â À¯È¿ ºñÆ® ¹æ½ÄÀÇ ºñµ¿±â FIFO¸¦ ¼³°èÇÔÀ¸·Î½á ºñµ¿±â ȸ·Î¿¡¼­ ¹ß»ýÇÏ´Â metastability¸¦ ¾ø¾Ö°í ºñµ¿±â Ä«¿îÅÍÀÇ ¿À·ù¸¦ ¼öÁ¤ÇÔÀ¸·Î½á ºñµ¿±â Ŭ·°µé »çÀÌ¿¡¼­ ¾ÈÀüÇÏ°Ô µ¥ÀÌÅ͸¦ Àü¼ÛÇÒ ¼ö ÀÖ´Â FIFO ±¸Á¶¸¦ Á¦¾ÈÇÑ´Ù. ¶ÇÇÑ ÀÌ FIFO ±¸Á¶ÀÇ HDL ±â¼úÀ» ¹ÙÅÁÀ¸·Î ÇÕ¼ºÇÏ¿© ´Ù¸¥ ¹æ½ÄÀÇ FIFO ¼³°è¿Í ºñ±³ Æò°¡ÇÑ´Ù.
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(English Abstract)
SOC design integrates many IPS that operate at different frequencies and the use of the different clock for each IP makes the design the most effective one. An asynchronous FIFO is required as a kind of a buffer to connect IPs that are asynchronous. However, in many cases, asynchronous FIFO is designed improperly and the c¡Ät of the wrong design is high. In this paper, an asynchronous FIFO is designed to transfer data across asynchronous clock domains by using a valid bit scheme that eliminates the problem of the metastability and synchronization altogether. This FIFO architecture is described in HDL and synthesized to the gate level to compare with other FIFO scheme. The suÀÌect matter of this paper is under patent pending.
Å°¿öµå(Keyword) ºñµ¿±â FIFO   SoC   À¯È¿ ºñÆ®   HDL   clock scheme  
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