peb20532 Infineon Technologies Corporation, peb20532 Datasheet - Page 163

• Manufacturer Part Number: peb20532
• Description: 2 Channel Serial Optimized Communication Controller
• Manufacturer: Infineon Technologies Corporation

Data Sheet
SLEN
BISNC
MCS
EPT
SYNC Character Length
This bit selects the SYNC character length in BISYNC/MONOSYNC
operation mode:
SLEN = ’0’
SLEN = ’1’
Select MONOSYNC/BISYNC Mode
This bit selects BISYNC or MONOSYNC operation mode:
BISNC = ’0’
BISNC = ’1’
Modulo Count Select
This bit is valid in HDLC Automode operation only and determines the
control field format:
MCS = ’0’
MCS = ’1’
Enable Preamble Transmission
This bit enables preamble transmission. The preamble is started after
interframe time fill (ITF) transmission is stopped because a new frame is
ready to be transmitted. The preamble pattern consists of 8 bits defined
in register PREAMB, which is sent repetitively. The number of repetitions
is determined by bit field ’PRE(1:0)’:
EPT=’0’
EPT=’1’
Note: Preamble operation does NOT influence HDLC shared flag
transmission if enabled.
6 bit (MONOSYNC), 12 bit (BISYNC).
8 bit (MONOSYNC), 16 bit (BISYNC).
MONOSYNC mode.
BISYNC mode.
Basic operation, one byte control field (modulo 8 counter
operation).
Extended operation, two bytes control field (modulo 128
counter operation).
Preamble transmission is disabled.
Preamble transmission is enabled.
5-163
Register Description (CCR2H)
(hdlc/bisync mode)
(bisync mode)
(bisync mode)
(hdlc modes)
PEB 20532
PEF 20532
2000-09-14