PEB 20570 F V3.1 Infineon Technologies, PEB 20570 F V3.1 Datasheet - Page 120

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PEB 20570 F V3.1

Manufacturer Part Number
PEB 20570 F V3.1
Description
IC LINE CARD CTRLR HDLC TQFP-100
Manufacturer
Infineon Technologies
Datasheet

Specifications of PEB 20570 F V3.1

Function
Line Card Controller
Interface
ISDN
Voltage - Supply
3.13 V ~ 3.47 V
Current - Supply
272.6mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LFQFP
Includes
Layer-1 Control, Signaling Control, Signal Processing, Voice Channel Handling
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Number Of Circuits
-
Other names
PEB20570FV3.1X
PEB20570FV31XP
SP000007243
4.3.2.9
The DRDY input is used when connecting an Infineon QUAT-S transceiver to the DELIC
via the IOM-2 interface. It is driven by the QUAT-S to inform the DELIC when a D-
channel is occupied by another S-interface device.
The IOMU supports the synchronous DRDY mode, i.e. the QUAT-S is operated in LT-T
mode. In this mode, the DRDY signal is valid only during the D-channels.
DRDY = ‘0’ means STOP (ABORT HDLC message), and DRDY = ‘1’ means GO.
Figure 39
IOMU DRDY support features:
• Sampling DRDY only once every D-channel at the first bit.
• Sampling with the first DCL falling edge (in single data-rate DCL mode) or with the
• DRDY support via IOM-2 port 0 only (with a constant delay of one 8 kHz frame)
• The status of the DRDY line can be read from register IDRDYR
Figure 40
Note: If DRDY is not used, DRDY has to be set to ’high’.
Data Sheet
second falling DCL edge (in double data-rate DCL mode), refer to
FSC
DU0
DRDY
Double
Data-Rate DCL
Single
Data-Rate DCL
B1 B2
Support of DRDY Signal from QUAT-S
DRDY
DU0
DRDY Signal Behavior
DRDY Sampling Timing
IOM-2 ch 7
MON
= not valid
go
D
B1 B2
IOM-2 ch 0
MON
stop
D
First bit of
a D-channel
D0
B1 B2
103
Sample point of DRDY
in single data-rate DCL mode
IOM-2 ch 1
valid
Sample point of DRDY
in double data-rate DCL mode
MON
stop
D
second bit of
a D-channel
D1
B1 B2
IOM-2 ch 2
MON
Functional Description
go
D
B1 B2
Figure
IOM-2 ch 3
PEB 20570
PEB 20571
MON
40.
2003-07-31
stop
D

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