pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 251

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

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User’s Manual
/*=== Transmit Descriptor ===============================================*/
/*=== Receive Descriptor ================================================*/
/*=== Prepare Receive Descriptor 1 to 9 =================================*/
/*=== Prepare The Last Receive Descriptor, Number 10 ====================*/
channelControl[0].lasttxdescr
munichCtrlCfg.channelSpec[channel0].frda
channelControl[0].lastrcdescr
MUNICH32_ACTION_REQUEST ();
/* the next pointer of the last txDescr points to the zero pointer
rcDescr
rcDescr ->hold
rcDescr ->no
rcDescr ->c
for ( ; txDescr ->next; txDescr
{
}
txDescr ->fe
txDescr ->hold
for ( ; rcDescr ->next; rcDescr
{
}
rcDescr ->hi
rcDescr ->fe
txDescr ->hi
txDescr ->fnum
txDescr ->hold
txDescr ->fe
txDescr ->v110
rcDescr ->hold = 0;
rcDescr ->hi
rcDescr ->no
rcDescr ->fe
rcDescr ->c
= AllocReceiveDescriptor(10);
= 0;
= 1;
= 1;
= 32;
= 0;
= 0;
= 0;
= 32;
= 0;
= 0;
= 3;
= 0;
= 1;
= 0;
= 0;
= 1;
= txDescr; /* store last transmit pointer */
= rcDescr; /* store last receive pointer
/* generate MUNICH32 activation request */
= txDescr ->next )
= rcDescr ->next )
/* clear host initiated interrupt bit */
251
/* 3 interframe timefill char
/* clear frame end bit
/* set frame end bit
/* clear hold bit
/* clear v110 bit
/* set hold bit
/* clear data section complete bit */
/* clear data section complete bit */
/* not the last descriptor
/* last available descriptor
/* no host interrupt
/* 32 data byte available
/* clear frame end bit
/* no host interrupt
/* 32 data byte available
/* clear frame end bit
= rcDescr; /* first receive
/* with 32 data byte each
/* receive descriptors
/* Alloc e.g. ten
/* descriptor address */
PEB 20320
Appendix
01.2000
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