pef20550 Infineon Technologies Corporation, pef20550 Datasheet - Page 171
pef20550
Manufacturer Part Number
pef20550
Description
Extended Line Card Interface Controller Elic
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PEF20550.pdf
(407 pages)
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RAC
TLP
4.7.8
Access in demultiplexed
Access in multiplexed
Reset value: 00
PU
SC1..0
ODS
Semiconductor Group
bit 7
P-interface mode:
P-interface mode:
PU
Channel Configuration Register 1 (CCR1)
Receiver Active.
Via RAC the HDLC-receiver can be activated/deactivated.
0…HDLC-receiver inactive
1…HDLC-receiver active
In extended transparent mode 0 and 1 RAC must be reset (HDLC-receiver
disabled) to enable fully transparent reception.
Test Loop.
When set input and output of the HDLC-channel are internally connected.
(transmitter channel A - receiver channel A
transmitter channel B - receiver channel B)
TXDA/B are active, RXDA/B are disabled.
Power-Down Mode.
0…power-down (standby), the internal clock is switched off.
1…power-up (active).
Serial Port Configuration
00…point to point configuration,
01…bus configuration, timing mode 1, data is output with the rising edge of
11…bus configuration, timing mode 2, data is output with the falling edge
Output Driver Select.
Defines the function of the transmit data pin (TxDA/B).
0…TxDA/B-pin open drain output
1…TxDA/B-pin push-pull output
SC1
Nevertheless, register read/write access is possible.
H
the data clock on pin TxDA/B and evaluated 1/2 clock period later with
the falling clock edge at pin CxDA/B
of the data clock and evaluated with the next falling clock edge.
Thus one complete clock period is available between data output and
evaluation.
SC0
ODS
read/write
read/write
171
ITF
address: (Ch-A/Ch-B): 2F
address: (Ch-A/Ch-B): 5E
Detailed Register Description
CM2
CM1
PEB 20550
PEF 20550
H
H
bit 0
/6F
/DE
CM0
H
H
01.96
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