MT9079 Mitel Semiconductor, MT9079 Datasheet - Page 30

• Manufacturer Part Number: MT9079
• Description: CMOS ST-BUS FAMILY Advanced Controller for E1
• Manufacturer: Mitel Semiconductor

MT9079
4-266
Bit
7
6
5
4
3
2
1
0
Table 37 - Interrupt Mask Word One
Name
CRCI
RCRI
CEFI
BPVI
BERI
SIGI
EBI
(0)
(0)
(0)
(0)
(0)
(0)
(0)
---
(Page 1, Address 1CH)
Receive
unmasked an interrupt is initiated
when a receive E-bit
remote CRC-4 error. 1 - unmasked, 0
-
00100000.
CRC-4
unmasked an interrupt is initiated
when a local CRC-4 error occurs. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00100000.
Consecutively Errored FASs Inter-
rupt. When unmasked an interrupt is
initiated
errored frame alignment signals are
received. 1 - unmasked, 0 - masked.
Interrupt vector = 00100000.
Bipolar Violation Interrupt. When
unmasked an interrupt is initiated
when a bipolar violation error occurs.
1 - unmasked, 0 - masked. Interrupt
vector = 00100000.
RAI and Continuous CRC Error Inter-
rupt. When unmasked an interrupt is
initiated when the RAI and continu-
ous CRC error counter is incre-
mented. 1 - unmasked, 0 - masked.
Interrupt vector = 00100000.
Bit Error Interrupt. When unmasked
an interrupt is initiated when a bit
error occurs. 1 - unmasked, 0 -
masked.
00100000.
Unused.
Signalling (CAS) Interrupt. When
unmasked and any of the receive
ABCD bits of any channel changes
state an interrupt is initiated. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00000001
masked.
Functional Description
Error
when
E-bit
Interrupt
Interrupt
Interrupt.
two
Interrupt.
consecutive
vector
indicates a
vector
When
When
=
=
Bit
7
6
5
4
3
2
1
0
Table 38 - Interrupt Mask Word Two
Name
CRCO
CALNI
RCRO
AUXPI
BERO
FERO
EBO
(0)
(0)
(0)
(0)
(0)
(0)
(0)
---
(Page 1, Address 1DH)
Receive
Interrupt. When unmasked an inter-
rupt is initiated when the E-bit error
counter changes form FFH to 0H. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00010000.
CRC-4 Error Counter Overflow Inter-
rupt. When unmasked an interrupt is
initiated when the
counter changes form FFH to 0H. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00010000.
CRC-4 Alignment Interrupt. When
unmasked an interrupt is initiated
when the CALN status bit of page 3,
address 12H changes state. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00001000.
Frame
Counter Overflow Interrupt. When
unmasked an interrupt is initiated
when the frame alignment signal
error counter changes form FFH to
0H. 1 - unmasked, 0 - masked. Inter-
rupt vector = 00010000.
RAI and Continuous CRC-4 Error
Counter Overflow Interrupt. When
unmasked an interrupt is initiated
when the RAI and Continuous error
counter changes form FFH to 0H. 1 -
unmasked, 0 - masked. Interrupt vec-
tor = 00010000.
Bit Error Counter Overflow Interrupt.
When unmasked an interrupt is initi-
ated when the bit error counter
changes form
unmasked, 0 - masked. Interrupt vec-
tor = 00010000.
Auxiliary Pattern Interrupt. When
unmasked an interrupt is initiated
when the AUXP status bit of page 3,
address
unmasked, 0 - masked. Interrupt vec-
tor = 01000000.
Unused.
Functional Description
Alignment
E-bit
15H
goes
Counter
FFH to 0H. 1 -
Signal
CRC-4
high.
Overflow
Error
1
error
-