MT9072 Zarlink Semiconductor, Inc., MT9072 Datasheet - Page 139

• Manufacturer Part Number: MT9072
• Description: Octal T1-E1-J1 Framer
• Manufacturer: Zarlink Semiconductor, Inc.

Advance Information
15-4
Bit
Bit
15
14
13
12
11
10
9
8
7
6
5
3
2
1
0
D4YALMIM
SECYELIM
ESFYELIM
RXSLIPIM
TXSLIPIM
T1DMYIM
D4Y48IM
PRBSIM
LLDDIM
LLEDIM
EXZOI
BPVIM
PDVIM
Name
Name
EXZI
Table 112 - Elastic Store and Excessive zero Interrupt Mask Register(Y46) (T1)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
(0)
#
#
Table 111 - Receive Line and Timer Interrupt Mask Register(Y45) (T1)
not used.
Excessive Zero Overflow Interrupt. This bit goes high whenever the excessive zero
counter (Y1B) overflows.This bit is reset after a read of Y36 or Y26.
EXcessive Zero Interrupt. This bit goes high whenever the excessive zero counter (Y1B)
is incremeted by one. This bit is reset after a read of Y36 or Y26.
Transmit SLIP Interrupt Mask. When unmasked an interrupt is initiated whenever a
controlled frame slip occurs in the transmit elastic buffer. If 1 - masked, 0 - unmasked.
Receive SLIP Interrupt Mask. When unmasked an interrupt is initiated whenever a
controlled frame slip occurs in the receive elastic buffer. If 1 - masked, 0 - unmasked.
D4 Yellow Interrupt Mask. When unmasked this interrupt bit goes high whenever the D4
Yellow alarm code has been received. If 1 - masked, 0 - unmasked.
D4 Y48 Interrupt Mask. When unmasked this interrupt bit goes high whenever the D4
Yellow alarm code has been received for 48 msec. If 1 - masked, 0 - unmasked.
Secondary Yellow Interrupt Mask. When unmasked this interrupt bit goes high
whenever a Secondary Yellow alarm is received. If 1 - masked, 0 - unmasked.
ESF Yellow Interrupt Mask. When unmasked this interrupt bit goes high whenever a
ESF Yellow alarm is received. If 1 - masked, 0 - unmasked.
T1DM Yellow Interrupt Mask. When unmasked this interrupt bit goes high whenever a
TIDM Yellow alarm is received. If 1 - masked, 0 - unmasked.
not used
Bipolar Violation Interrupt Mask. When unmasked this interrupt bit goes high whenever
a bipolar violation (excluding B8ZS encoding) is encountered. If 1 - masked, 0 -
unmasked.
Pseudo Random Bit Sequence Error Interrupt Mask. When unmasked this interrupt bit
goes high upon detection of an error with a channel selected for PRBS testing. If 1 -
masked, 0 - unmasked.
Pulse Density Violation Interrupt Mask. When unmasked this interrupt bit goes high
whenever a sequence of 16 consecutive zeros is received on the line, or the incoming
pulse density is less than N ones in a time frame of 8(N+1) where N = 1 to 23. If 1 -
masked, 0 - unmasked.
Loop Code Enable Detected Interrupt Mask. When unmasked this interrupt bit goes
high whenever the loop up code has been detected on the line for a period of 48
milliseconds. If 1 - masked, 0 - unmasked.
Loop Code Disable Detected Interrupt Mask. When unmasked this interrupt bit goes
high whenever the loop down code has been detected on the line for a period of 48
milliseconds. If 1 - masked, 0 - unmasked.
Functional Description
Functional Description
MT9072
139