pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 70

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

User’s Manual
Fixed Size Frame Oriented Protocol (V110/.30)
Silencing of poll cycles by TH = 1
Note: 1. The times
2. The TH bit (as all channel commands) is not synchronized with TB! (as
3. In the example the proper use to silence a channel polling the HOLD bit of the
4. An AR pulse for an action specification leading to TH = 1 should be issued after
opposed to the H-bit in the descriptor) TH acts to the data stream currently sent.
transmit descriptor is illustrated. The AR pulse is issued after the polling has
started and the H-bit is not reset before polling has stopped by the TH bit.
(ITBS + 2) polls of the MUNICH32, where ITBS is previously programmed
number of long words in the TB reserved for this channel.
t
1
and
t
2
are statistical but typically only a few clock cycles.
70
Functional Description
PEB 20320
01.2000