PEB 20571 F V3.1 Infineon Technologies, PEB 20571 F V3.1 Datasheet - Page 68

• Manufacturer Part Number: PEB 20571 F V3.1
• Description: IC LINE CARD CTRLR DSP TQFP-100
• Manufacturer: Infineon Technologies

Specifications of PEB 20571 F V3.1

• Function: PBX Controller with DSP
• 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: PEB20571FV3.1X; PEB20571FV31XP; SP000007539

The U
Unconditional States
Reset
This state is entered unconditionally after a low appears on the RESET pin or after the
receipt of command RES (software reset). The analog transceiver part is disabled
(transmission of INFO 0) and the U
activation from terminal (TE) is not possible.
Test Mode
The test signal (it
which originally invoked the state. TM1 causes single alternating pulses to be
transmitted (it
burst mode technique normally employed on the U
and the test signals are transmitted continuously.
Pending Deactivation
To access any of the conditional states from any of the above unconditional states, the
pending deactivation state must be entered. This occurs after the receipt of a DR
command. In this state the awake detector is activated and the state is left only when the
line has settled (i.e., INFO 0 has been detected for 2 ms) or by the command DC.
Note: Although DR is shown as a normal command, it may be seen as an unconditional
Conditional States
Wait for DR
This state is entered from the pending deactivation state once INFO 0 or DC has been
identified. From here the line may be either activated, deactivated or a test loop may be
entered.
Deactivated
This is the power down state of the physical protocol. The awake detection is active and
the device will respond to an INFO 1w (wake signal) by initiating activation.
Data Sheet
PN
command. No matter which state the LT is in, the reception of a DR command will
always result in the pending deactivation state being entered.
state machine has unconditional and conditional states (refer to Figure 16):
1
); TM2 causes continuous alternating pulses to be transmitted (it
i
) sent to the U
PN
interface in this state is dependant on the command
PN
interface awake detector is inactive. Hence,
51
PN
interface is suspended in this state
Interface Description
PEB 20570
PEB 20571
2003-07-31
2
). The