PEF 20532 F V1.3 Infineon Technologies, PEF 20532 F V1.3 Datasheet - Page 247

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PEF 20532 F V1.3

Manufacturer Part Number
PEF 20532 F V1.3
Description
IC COMM CTRLR 2CH SER TQFP-100
Manufacturer
Infineon Technologies
Datasheet

Specifications of PEF 20532 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
Automatic Flag Detection and Transmission, Baud Rate Generator, On-Chip Clock Generation, Receive Line Status Detection
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
PEF20532FV1.3X
PEF20532FV13XP
SP000007511
Figure 56
6.2.2
Also 2 ´
direction.
There are different interrupt indications concerned with the reception of data:
HDLC/SDLC/PPP
In addition to the message end (’RME’) interrupt the following information about the
received packet is stored by SEROCCO-M in special registers and/or RFIFO:
Data Sheet
with the receive FIFO threshold in register CCR3H, bit field ’RFTH(1..0)’; default is 32
bytes) can be read from RFIFO and the received message is not yet complete.
is completed, i.e. either
- one message which fits into RFIFO not exceeding the receive FIFO threshold, or
- the last part of a message, all in all exceeding the receive FIFO threshold
is stored in the RFIFO.
RPF’ (Receive Pool Full) interrupt, indicating that a specified number of bytes (limited
RME’ (Receive Message End) interrupt, indicating that the reception of one message

32 byte FIFO buffers (receive pools) are provided for each channel in receive
Transmit serial
Data Reception (Interrupt Driven)
data
Interrupt Driven Data Transmission (Flow Diagram)
Issue Command
CMDRL.XIF
CMDRL.XF
or
No
Reset Transmitter
(CMDRL.XRES)
End of Message
(up to 32 bytes)
'XPR' Interrupt
Write Data to
READY
START
XFIFO
XFIFO
247
?
Yes
CMDRL.XIF+.XME
CMDRL.XF+.XME
Issue Command
or
Transmit serial
append trailer
Action taken
by CPU
Interrupt
indication to CPU
Action taken
by the SCC
data and
Programming
PEB 20532
PEF 20532
2000-09-14

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