PEF 20525 F V1.3 Infineon Technologies, PEF 20525 F V1.3 Datasheet - Page 47

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
3.2.3
The SEROCCO-H includes an internal Oscillator (OSC) as well as two independent
Baud Rate Generators (BRG) and two Digital Phase Locked Loop (DPLL) circuits.
The transmit and receive clock can be generated either
• externally, and supplied directly via the RxCLK and/or TxCLK pins
• internally, by selecting
There are a total of 14 different clocking modes programmable via bit field ’CM’ in
register CCR0L, providing a wide variety of clock generation and clock pin functions, as
shown in
The transmit clock pins (TxCLK) may also be configured as output clock and control
signals in certain clock modes if enabled via bit ’TOE’ in register CCR0L.
The clocking source for the DPLL’s is always the internal channel specific BRG; the
scaling factor (divider) of the BRG can be programmed through
registers.
There are two channel specific internal operational clocks in the SCC:
One operational clock (= transmit clock) for the transmitter part and one operational clock
(= receive clock) for the receiver part of the protocol logic.
Note: The internal timers always run using the internal transmit clock.
Table 7
Type
Receive
Clock
Transmit
Clock
Data Sheet
(called external clock modes)
– the internal oscillator (OSC) and/or the channel specific baud rate generator (BRG)
– the internal DPLL, recovering the receive (and optionally transmit) clock from the
(called internal clock modes)
receive data stream.
Table
Clocking System
Overview of Clock Modes
8.
Source
RxCLK Pins
OSC,
DPLL,
BRG,
TxCLK Pins,
RxCLK Pins
OSC,
DPLL,
BRG/BCR,
BRG
Clock
47
Generation
Externally
Internally
Externally
Internally
Functional Overview
Clock Mode
0, 1, 4, 5
2, 3a, 6, 7a
3b, 7b
0a, 2a, 4, 6a
1,5
3a, 7a
2b, 6b
0b, 3b, 7b
BRRL
PEB 20525
PEF 20525
and
2000-09-14
BRRH

Related parts for PEF 20525 F V1.3