MT9074 Mitel Networks Corporation, MT9074 Datasheet - Page 48

• Manufacturer Part Number: MT9074
• Description: T1/E1/J1 Single Chip Transceiver
• Manufacturer: Mitel Networks Corporation

MT9074
48
Bit
Bit
2
1
0
7
6
5
4
3
Table 32 - Interrupt Mask Word Zero (T1)
EXTOSC
MFSYNIM
Table 31 - Reset Control Word (T1)
TFSYNIM
Name
LOSIM
Name
AISIM
RSV
RSV
- - -
(Page 1, Address 1AH)
(Page 1, Address 1BH)
External
Setting this bit connects the pin
OSC1 to a TTL compatible input.
This allows for a system design
employing a TTL output oscillator
as a 20.000 Mhz reference clock.
Reserved. Set to zero for normal
operation.
Reserved. Set to zero for normal
operation.
Terminal
Synchronization
Mask.
interrupt is initiated whenever
a change of state of terminal
frame synchronization condition
exists. If 1 - unmasked, 0 -
masked.
Multiframe
Interrupt
unmasked
initiated whenever a change of
state
synchronization condition exist.
If 1 - unmasked, 0 - masked.
Unused.
Alarm
Interrupt
unmasked a change of state of
received all ones condition will
initiate an interrupt. If 1 -
unmasked, 0 - masked.
Loss of Signal Interrupt Mask.
When unmasked an interrupt is
initiated whenever a change of
state of loss of signal condition
exists. If 1 - unmasked, 0 -
masked.
01000000.
Functional Description
Functional Description
When
Indication
Oscillator
Interrupt
of
an
Mask.
Mask.
Synchronization
unmasked
interrupt
multiframe
vector
Interrupt
Select.
Frame
Signal
When
When
an
is
=
Bit
Bit
2
1
0
7
6
5
4
Table 32 - Interrupt Mask Word Zero (T1)
Table 33 - Interrupt Mask Word One (T1)
COFAIM
RxSLPIM
TxSLPIM
CRCIM
YELIM
Name
SEFIM
FEIM
Name
(Page 1, Address 1CH
(Page 1, Address 1BH)
Framing Bit Error Interrupt
Mask.
interrupt is initiated whenever an
erroneous framing bit is detected
(provided the circuit is in terminal
frame sync). If 1 - unmasked, 0 -
masked.
CRC-6 Error Interrupt Mask.
When unmasked an interrupt is
initiated whenever a local CRC-6
error occurs. If 1 - unmasked, 0 -
masked.
Yellow Alarm Interrupt Mask.
When unmasked detection of a
yellow
interrupt. If 1 - unmasked, 0 -
masked.
Change of Frame Alignment
Interrupt
unmasked an interrupt is initiated
whenever a change of frame
alignment occurs after a reframe.
If 1 - unmasked, 0 - masked.
Severely
Interrupt
unmasked
initiated when a sequence of 2
framing errors out of 6 occurs. If
1 - unmasked, 0 - masked.
Transmit SLIP Interrupt Mask.
When unmasked an interrupt is
initiated whenever a controlled
frame slip occurs in the transmit
elastic buffer. If 1 - unmasked, 0
- masked.
Receive SLIP Interrupt Mask.
When unmasked an interrupt is
initiated whenever a controlled
frame slip occurs in the receive
elastic buffer. If 1 - unmasked, 0
- masked.
Functional Description
Functional Description
Advance Information
When
alarm
Errored
an
Mask.
Mask.
unmasked
triggers
interrupt
Frame
When
When
an
an
is