mt8977ac Mitel, mt8977ac Datasheet - Page 26

• Manufacturer Part Number: mt8977ac
• Description: Iso-cmos St-bus ?amily T1/esf Framer Circuit
• Manufacturer: Mitel

MT8977
Appendix
Control and Status Register Summary
Note 1:
4-124
Per Channel Control Words (All Channels on CSTi0 Except Channels 3, 7, 11, 15, 19, 23, 27 and 31)
Per Channel Control Words (All Channels on CSTi1 Except Channels 3, 7, 11, 15, 19, 23, 27 and 31)
1 Disabled
0 Enabled
1 Enabled
0 Disabled
1 Detected
0 Normal
1 Detected
0 Not Detected
Debounce
RMLOOP
YLAIR
Per Channel Status Word (All Channels on CSTo Except Channels 3, 7, 11, 15, 19, 23, 27, 31)
BlAlm
7
In ESF mode:
In D3/D4 mode:
1 Detected
0 Not
1 Enabled
0 Disabled
1 Disabled
0 Enabled
1: CRC calc. ignored during Sync.
0: CRC checked for Sync.
1: Sync. to first correct S-bit pattern.
0: Will not Sync. if Mimic detected.
Detected
DGLOOP
ISO-CMOS
TSPZCS
MIMIC
UNUSED - KEEP AT 0
Frame
FrCnt
Count
6
UNUSED
UNUSED - KEEP AT 0
CHANNEL COUNT
1 Enabled
0 Disabled
1 B8ZS
0 Jammed
1 Xst High
0 Xst Low
Bit
F
ALL 1’s
Master Control Word 1 (Channel 15, CSTi0)
Master Control Word 2 (Channel 31, CSTi0)
Count
T
ERR
Master Status Word 1 (Channel 15, CSTo)
Master Status Word 2 (Channel 31, CSTo)
B8ZS
Error
XSt
5
Phase Status Word (Channel 3, CSTo)
1 ESF
0 D3/D4
1 Detected
0 Not
1 Disabled
0 Enabled
BIPOLAR VIOLATION COUNT
ESFYLW
Detected
ESF/D4
8KHSel
4
Reframes on
1 Not Detected
0 Detected
High to Low
Rec’d. Sig. Bit
Transition
1 Set High
0 Cleared
Reframe
Txt. Sig. Bit
Device
MFSYNC
XCtI
A
A
3
1 No Inversion
0 Inversion
1 Enabled
0 Disabled
Rec’d. Sig. Bit
1 Enabled
0 Disabled
Txt. Sig. Bit
SLC-96
Polarity
Violation
ESFYLW
Bipolar
count
BPV
B
B
2
Preliminary Information
CRC-ERROR COUNT
See Note 1
1 Ch. looped
0 Normal
Rec’d. Sig. Bit
1 Disabled
0 Enabled
CRC/MIMIC
Performed
when Slip
Changes
BIT COUNT
Txt. Sig. Bit
Robbed Bit
back
State
SLIP
Loop
C
C
1
1 Out-of-Sync.
0 In-Sync
1 Enabled
0 Disabled
1 4/12
0 2/4
Rec’d. Sig. Bit
1 Enabled
0 Disabled
Txt. Sig. Bit
Maint.
SYN
YLALR
Data
D
D
0