UPD72107中文资料LAP-B CONTROLLER Link Access Procedure Balanced mode数据手册Renesas规格书

描述 Description

The µPD72107 is an LSI that supports LAP-B protocol specified by the ITU-T recommended X.25 on a single chip.FEATURES
• Complied with ITU-T recommended X.25 (LAP-B84 edition)
   HDLC frame control
   Sequence control
   Flow control
• ITU-T recommended X.75 supported
• TTC standard JT-T90 supported
• Optional functions
   Option frame
   Global address frame
   Error check deletion frame
• Powerful test functions
   Data loopback function
   Loopback test link function
   Frame trace function
• Abundant statistical information
• Detailed mode setting function
• Modem control function
• On-chip DMAC (Direct Memory Access Controller)
   24-bit address
   Byte/word transfer enabled (switch with external pin)
• Memory-based interface
   Memory-based command
   Memory-based status
   Memory-based transmit/receive data
• MAX.4 Mbps serial transfer rate
• NRZ, NRZI coding

特性 Features

• Complied with ITU-T recommended X.25 (LAP-B84 edition)
   HDLC frame control
   Sequence control
   Flow control
• ITU-T recommended X.75 supported
• TTC standard JT-T90 supported
• Optional functions
   Option frame
   Global address frame
   Error check deletion frame
• Powerful test functions
   Data loopback function
   Loopback test link function
   Frame trace function
• Abundant statistical information
• Detailed mode setting function
• Modem control function
• On-chip DMAC (Direct Memory Access Controller)
   24-bit address
   Byte/word transfer enabled (switch with external pin)
• Memory-based interface
   Memory-based command
   Memory-based status
   Memory-based transmit/receive data
• MAX.4 Mbps serial transfer rate
• NRZ, NRZI coding