mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 120

• Manufacturer Part Number: mt9074ap1
• Description: T1/e1/j1 Single Chip Transceiver With Wide Dynamic Range Liu
• Manufacturer: Zarlink Semiconductor

Bit
7
6
5
4
3
2
1
0
HDLC0I
HDLC1I
1SECI
5SECI
Name
RCRI
SIGI
- - -
JAI
Table 129 - Interrupt Word Three
Unused
HDLC0 Interrupt. Whenever an unmasked HDLC0 interrupt occurs.
This bit goes high. Reading this register clears this bit.
HDLC1 Interrupt. Whenever an unmasked HDLC1 interrupt occurs. this
bit goes high. Reading this register clears this bit.
Jitter Attenuator Error Interrupt. Whenever an unmasked JAI interrupt
occurs.
If jitter attenuator FIFO comes within four bytes of an overflow or
underflow, this bit goes high. Reading this register clears this bit.
One Second Status Interrupt. When unmasked this interrupt bit goes
high whenever the 1SEC status bit (page 3 address 12H bit 7) goes from
low to high. Reading this register clears this bit.
Five Second Status Interrupt. When unmasked this interrupt bit goes
high whenever the 5 SEC status bit goes from low to high. Reading this
register clears this bit.
RCRI Interrupt. Whenever an unmasked RCRI interrupt occurs. If
remote alarm and CRC error occur this bit goes high. Reading this
register clears this bit.
Signaling Interrupt. When unmasked this interrupt bit goes high
whenever a change of state (optionally debounced - see DBEn in the
Data Link, Signaling Control Word) is detected in the signaling bits (AB
or ABCD) pattern. Reading this register clears this bit.
(Page 4, Address 1EH) (E1)
Zarlink Semiconductor Inc.
MT9074
120
Functional Description
Data Sheet