PEF 20525 F V1.3 Infineon Technologies, PEF 20525 F V1.3 Datasheet - Page 151

no-image

PEF 20525 F V1.3

Manufacturer Part Number
PEF 20525 F V1.3
Description
IC CTRL PPP/HDLC SERIAL TQFP-100
Manufacturer
Infineon Technologies
Datasheet

Specifications of PEF 20525 F V1.3

Function
Serial Optimized Communications Controller
Interface
ASYNC, BISYNC, HDLC, PPP
Number Of Circuits
2
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
50mA
Power (watts)
150mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LFQFP
Includes
Bit Processor Functions, Serial Communication Controllers (SCCs)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEF20525FV1.3X
PEF20525FV13XP
SP000007592
Data Sheet
MCS
EPT
NPRE(1:0)
ITF
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
Number of Preamble Repetitions
This bit field determines the number of preambles transmitted:
NPRE = ’00’ 1 preamble.
NPRE = ’01’ 2 preambles.
NPRE = ’10’ 4 preambles.
NPRE = ’11’ 8 preambles.
Interframe Time Fill
This bit selects the idle state of the transmit pin TxD:
ITF=’0’
ITF=’1’
Note: It is recommended to clear bit ’ITF’ in bus configuration modes, i.e.
transmission if enabled.
continuous ’1’s are sent as idle sequence and data encoding is
NRZ.
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.
Continuous logical ’1’ is sent during idle phase.
Continuous flag sequences are sent (’01111110’ flag
pattern).
5-151
Register Description (CCR2H)
PEB 20525
PEF 20525
2000-09-14

Related parts for PEF 20525 F V1.3