New Functionality

• New framer_mode flags to pci_chan_open:

  E1_LOOP_DPRAM

  New local diagnostic loopback mode loops data in the dual-port RAM, eliminating the hardware channelization logic from the loop path

  E1_LOOP_SDRAM

  New local diagnostic loopback mode loops data before the dual-port RAM

  E1_RX_FAST_CLK

  Indicates that the selected framer should be considered a candidate for the transmit clock source. When not using a local loopback mode the fastest of all receivers with this flag set will be used as the transmit clock source. If no framers have this flag set then the local crystal clock will be used.

• New function, pci_chan_autoidle, may be used to enable, disable, or query auto-idle mode. When a transmit channel is set for auto-idle mode the last transmitted byte will be used as the fill character in the event of an underflow.
• New function, pci_chan_source, allows an open receive channel to be specified as the data source for a transmit channel. When operating in this mode all data received by the source channel will be retransmitted by the embedded processor, requiring no host intervention. The source channel may still be read by the host to monitor the data stream.
• If pci_open_chan is passed an nslots parameter < 0 the slotlist parameter will be interpreted as a bitmap of timeslots rather than an array of slot numbers. The least significant bit is used for timeslot 0 and the most significant bit for timeslot 31. Any bits which are set to one indicate that the corresponding timeslot will be part of the channel.
• The pci_chan_buf_usage function now reports double-buffer statistics when the mode parameter is >= 4. Note that only receive channels have a double buffer.
• New functions, pci_sleep and pci_usleep provide a platform-independant, thread-safe mechanism to suspend a single thread's execution.
• Access to the eeprom and JTAG bus is now synchronized between all processes, including the embedded code.
• Read-modify-write cycles to control registers are now atomic with respect to all other processes, including the embedded code.
• The pcirun, pcihold, and pcireset functions now return the previous reset status.

Library Documentation