| 摘要 |
PURPOSE:To generate an optional pattern with optional length through simple circuit constitution by controlling transmit pattern length from a fast RAM through a slow RAM which indicates the frequency of transmission. CONSTITUTION:The slow RAM3 sends a bit for selecting a pattern of the fast RAM1 by an address indicated by an address counter 4 to a signal line (a), and also sends an indication of the frequency of transmission to the RAM1 through an address counter 2. Then, the RAM1 sends out a specified pattern by as many times as indicated. Consequently, an optional pattern with optional length is generated through the simple circuit constitution. |
