MT8979 View Datasheet(PDF) - Mitel Networks
Part Name
Description
MFG CO.
MT8979 Datasheet PDF : 26 Pages
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MT8979 ISO-CMOS
Appendix
Control and Status Register Summary
7
UNUSED
Keep at 1
6
5
4
3
2
1
0
LOOP16
1 Enabled
0 Disabled
UNUSED
Keep at 1
NDBD
1 No
Debounce
0 Debounce
NDBC
1 No
Debounce
0 Debounce
NDBB
1 No
Debounce
0 Debounce
Master Control Word 1 (MCW1) - CSTi0, Channel 15
NDBA
1 No
Debounce
0 Debounce
UNUSED
Keep at 1
UNUSED
Keep at 0
CCS
1 Common
Channel
0 Channel
Associated
8 kHz SEL
1 Enabled
0 Disabled
TXAIS
1 Alarm On
0 Alarm Off
TXTS16AIS
XCTL
1 Alarm On
0 Alarm Off
1 Set High
0 Cleared
Master Control Word 2 (MCW2) - CSTi0, Channel 31
UNUSED
UNUSED
Keep at 0
SiMUX
RMLOOP
HDB3en
Maint
CRCen
DGLOOP
1 Enabled
0 Disabled
1 Enabled
0 Disabled
1 Disabled
0 Enabled
1 Enabled
0 Disabled
1 Enabled
0 Disabled
1 Enabled
0 Disabled
Master Control Word 3 (MCW3) - CSTi1, Channel 18
ReFR
Device
reframes on
High to Low
Transition
DATA
LOOP
RxPAD4
RxPAD2
RxPAD1
TxPAD4
TxPAD2
TxPAD1
1 No ADI
0 Enable ADI
1 Enabled
0 Disabled
Per Channel Cotnrol Word - CSTi0, Channels 0-14 and 16-30
A(N)
B(N)
C(N)
D(N)
A(N + 15)
B(N + 15)
C(N + 15)
D(N + 15)
Tx
Signalling Bit
Tx
Signalling Bit
Tx
Tx
Signalling Bit Signalling Bit
Tx
Signalling Bit
Tx
Signalling Bit
Tx
Signalling Bit
Channel Associated Signalling - CSTi1, Channels N = 1 to 15
Tx
Signalling Bit
IUO
FAF2-8
Should be
kept at 1
Frame Alignment Signal - Keep at "0011011"
Frame Alignment Signals - CSTi1, Channel 16
MA1-4
X1
Y
Multiframe Alignment Signal - Keep at "0000"
Spare Bit
Should be 1
1 Alarm On
0 Alarm Off
X2, X3
Spare Bits - Should be 1
IU1
Reserved for
International
Use
Multiframe Alignment Signals - CSTi1, Channel 0
NFAF
ALM
NU1-5
Keep at "1" 1 Alarm On
Bits Reserved for National Use - Should be kept at "1"
0 Alarm Off
Non-Frame Alignment Signal - CSTi1, Channel 17
4-184
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