Preliminary Information
MT9075B
Bit
Name
Functional Description
Bit
Name
Functional Description
7 - 0 PS7-0 PRBS Error Counter. This counter
is incremented for each PRBS error
detected on any of the receive
channels connected to the PRBS
error detector.
7 - 0
JFC7
-
Jitter FIFO Counter. This is an 8 bit
counter that is incremented when
the FIFO read pointer comes within
4 words of an underflow or overflow
condition. During this time the read
clock will abruptly slow-down or
speed-up to avoid an overflow or
underflow condition.
JFC0
Table 50 - PRBS Error Counter
(Page 04H, Address 10H)
Table 55 - Jitter FIFO Counter
(Page 04H, Address 15H)
Bit
Name
Functional Description
7 - 0 PSM7-0 CRC Multiframe Counter for
PRBS. This counter is incremented
for
each
received
CRC
submultiframe. It is cleared when
the PRBS Error Counter is written
to.
Table 51 - CRC Multiframe Counter for PRBS
(Page 04H, Address 11H)
Bit
Name
Functional Description
7 - 0 IV7 -IV0 Interrupt Vector. The interrupt
vector status word contains an
interrupt vector that indicates the
category of the last interrupt as
shown in Table 11.
Table 52 - Interrupt Vector Status Word
(Page 04H, Address 12H)
Bit
Name
Functional Description
Unused
7 - 2
---
1 - 0 EC9-8 E Bit Error Counter. The most
significant 2 bits of the E bit error
counter.
Table 53 - E bit Error Counter
(Page 04H, Address 13H)
Bit
Name
Functional Description
7 - 0 EC7-0 E bit Error Counter. The least
significant eight bits of the E-bit
error counter.
Table 54 - E bit Error Counter
(Page 04H, Address 14H)
49
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