pef20320 Infineon Technologies Corporation, pef20320 Datasheet - Page 91

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

TMB
Transmit Direction
General Features
In transmit direction:
– The starting and ending flag (00
– The interframe time-fill between frames
is generated automatically.
Options
The different options for this mode are:
– The number of interframe time-fill characters as shown in Figure 26 by choosing
Interrupts
The possible interrupts for the mode in transmit direction are identical to those of HDLC.
A typical data stream has the form
ITF DATA ITF DATA
Example
TMB channel with
User’s Manual
FNUM in the transmit descriptor. For the values FNUM = 0, 1, 2 we have
FNUM = 0
FNUM = 1
FNUM = 2
INV = 0
CRC = 0
TRV = 00
FA = 0
MODE = 01
IFTF = 0
Intel interface
Channel number 5
… frame 1, 00
… frame 1, 00
… frame 1, 00
(required)
(required)
(required)
(TMB)
(required)
(no inversion)
H
H
H
, frame 2 … (start = end flag)
, 00
, 00
H
H
H
before and after a frame)
, frame 2 …
, 00
H
, frame 2 …
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Functional Description
PEB 20320
01.2000