peb20534 Infineon Technologies Corporation, peb20534 Datasheet - Page 169

• Manufacturer Part Number: peb20534
• Description: Dma Supported Serial Communication Controller With 4 Channels
• Manufacturer: Infineon Technologies Corporation

8.1
The HDLC controller of each serial channel (SCC) can be programmed to operate in
various modes, which are different in the treatment of the HDLC frame in receive
direction. Thus, the receive data flow and the address recognition features can be
performed in a very flexible way satisfying almost any application specific requirements.
There are 4 different HDLC operating modes which can be selected via register CCR1.
Two more protocol modes (PPP, Extended Transparent Mode) are treated as sub-
modes of the HDLC controller part.
8.1.1
The following table provides an overview of the different address comparison
mechanisms in HDLC operating modes:
Table 24
Mode
Data Sheet
Address Field
16 bit
8 bit
8 bit
None
HDLC/SDLC Protocol Modes
HDLC
Address Comparison Overview
High Address Byte
FE
1111 11 C/R 0
FC
1111 11 C/R 0
RAH1
RAH1
RAH2
RAH2
RAL1
RAL2
FE
FC
RAH1
RAH2
-
H
H
H
H
169
2
2
Detailed Protocol Description
Low Address Byte
RAL1
RAL2
RAL1
RAL2
RAL1
RAL2
RAL1
RAL2
-
-
-
-
-
-
-
PEB 20534
PEF 20534
2000-05-30