MT9079 Mitel Semiconductor, MT9079 Datasheet - Page 33

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

Table 48 - Least Significant Bipolar Violation Load
Table 47 - Most Significant Bipolar Violation Load
Table 46 - Errored Frame Alignment Load Word
7 - 0
7 - 0
7 - 0
7 - 0
7 - 0
Bit
Bit
Bit
Bit
Bit
Table 50 - CRC-4 Error Counter Load Word
Table 49 - E-bit Error Counter Load Word
BPLD15
CCLD7
CCLD0
EFLD7
EFLD0
BPLD8
BPLD7
BPLD0
ECLD7
ECLD0
Name
Name
Name
Name
Name
Word (Page 2, Address 1CH)
Word (Page 2, Address 1DH)
-
-
-
-
-
(Page 2, Address 1AH)
(Page 2, Address 1FH)
(Page 2, Address 1EH)
Errored
Word. This bit pattern is loaded into
the errored frame alignment signal
counter when LDEF is toggled (valid
in ST-BUS mode only).
Bipolar Violation Load Word. This bit
pattern is loaded into the most signifi-
cant bits of the bipolar Violation
counter when LDBPV is toggled
(valid in ST-BUS mode only).
Bipolar Violation Load Word. This bit
pattern is loaded into the least signifi-
cant bits of the Bipolar Violation
Counter. These bits are loaded when
LDBPV is toggled.
E-bit Error Counter Load Word. This
bit pattern is loaded into the E-bit
error counter when LDEC is toggled
(valid in ST-BUS mode only).
CRC-4 Error Counter Load Word.
This bit pattern is loaded into the
CRC-4 Error Counter when LDCRC
is toggled (valid in ST-BUS mode
only).
Functional Description
Functional Description
Functional Description
Functional Description
Functional Description
Frame
Alignment
Load
Status Page 3
Tables 51 to 58 describe the bit functions of the page
3 status registers.
Bit
7
6
5
4
3
2
1
0
Table 51 - Synchronization Status Word
MFSYNC
CRCSYN
CRCIWK
CRCRF
PSYNC
Name
SYNC
REB1
REB2
(Page 3, Address 10H)
Receive Basic Frame Alignment.
Indicates the basic frame alignment
status (1 - loss; 0 - acquired).
Receive Multiframe Alignment. Indi-
cates the multiframe alignment status
(1 - loss; 0 -acquired).
Receive
Indicates
alignment status (1 - loss; 0 -
acquired).
Receive E-Bit One Status. This bit
indicates the status of the received
E1 bit of the last multiframe.
Receive E-Bit Two Status. This bit
indicates the status of the received
E2 bit of the last multiframe.
CRC-4 Reframe. A one indicates that
the receive CRC-4 multiframe syn-
chronization could not be found
within the time out period of 8 msec.
after detecting basic frame synchro-
nization. This bit is cleared when
CRC-4 synchronization is achieved.
Synchronization Persistence. This bit
will go high when the SYNC status bit
goes high (loss of basic frame align-
ment). It will persist high for eight
msec. after SYNC has returned low,
and then return low.
CRC-4 Interworking. This bit indi-
cates the CRC-4 interworking status
(1 - CRC-to-CRC;
0 - CRC-to-non-CRC).
Functional Description
CRC-4
the
CRC-4
Synchronization.
MT9079
multiframe
4-269