pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 244

• Manufacturer Part Number: pef20320
• Description: Multichannel Network Interface Controller For Hdlc With 32 Channels
• Manufacturer: Infineon Technologies Corporation

User’s Manual
The second part of the function prepares the device to send the first HDLC frame:
– the linked list of frames to be send is registered
– in receive direction a linked list of 10 receive descriptors with 32 bytes data each is
– the macro MUNICH32_ACTION_REQUEST() ‘generates’ an activation request pulse
– the device reads the initialization data and transmits the first transmit frame
The MUNICH32 then polls the hold bit of last transmit descriptor until this bit is cleared.
If the hold bit is cleared the device sends the next data until it finds the next hold bit.
The function TxHdlcFrame connects the transmit descriptor of the next frame with the
last transmit descriptor of the last send frame and clears the hold bit; the next frame is
send.
prepared and installed.
to the MUNICH32
244
PEB 20320
Appendix
01.2000