PSB4596 Siemens Semiconductor Group, PSB4596 Datasheet - Page 61
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PSB4596
Manufacturer Part Number
PSB4596
Description
Analog Line Interface Solution ALIS
Manufacturer
Siemens Semiconductor Group
Datasheet
1.PSB4596.pdf
(104 pages)
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8.1.1
8.1.2
Semiconductor Group
Interrupts:
Sources:
Interrupt indication:
Note:
Lock behaviour:
Interrupts:
Sources:
Interrupt indication:
Lock behaviour:
Interrupt Indication at Signal Change:
Interrupt Indication at Event:
Signaling pins at ALIS-A (SI_0, SI_1);
VDD_OK indicates that ALIS-A has a power supply and that
the serial connection via the cap. interface is working;
must store the previous state of these bits to check which
signal caused an interrupt.
These bits will go to ‘0’ when there is no connection to
ALIS-A via the cap. interface. This will cause interrupts!
signal stored at lock time . Any difference will cause another
interrupt.
Complete marker sequence of caller ID detected;
RING:
Depending on automatic mode switching:
- detection of more than 18 V at TIP/RING (No_auto_ring ’1’);
- 2nd valid ringing (No_auto_ring ’0’);
CADENCE:
Time-out for 2nd ring burst; the time can be programmed in
XR2 (No_auto_ring ’0’);
The bits are set from their source and can be reset from the
host only by reading the interrupt register. Whenever one of
these bits is set, this is an indication that this event has
occurred.
another interrupt will be generated as soon as the lock is
released.
SI_0, SI_1, VDD_OK;
Any change in the signals will generate an interrupt. The host
At lock-release time, the current signal is compared to the
CALLER_ID, RING, CADENCE;
CALLER_ID:
These interrupts indicate that a certain event has occurred.
If one of these events occurs while the register is locked,
61
Analog Line Interface Solution
PSB 4595 / PSB 4596
Interrupt Controller
Data Sheet 06.98