Advance Information
MT90863
Timing Signals
ST-BUS Mode
CT Bus Mode
HMVIP Mode
F0i Width
C4i/C8i
C16i
61ns
122ns
8.192MHz
16.384MHz
244ns
244ns
Not Required
4.096MHz
F0o Width
C4o
4.096MHz
Table 1 - Timing Signals Requirements for Various Operation Modes
DMS Register Bits
Modes
Backplane Interface
Data Rate
BMS2
BMS1
BMS0
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
2Mb/s, ST-BUS Mode
2Mb/s, CT Bus Mode
4Mb/s, ST-BUS Mode
4Mb/s, CT Bus Mode
8Mb/s, ST-BUS Mode
STio0 - 31
STio0 - 31
STio0 - 31
STio0 - 31
STio0 - 15
STio16 - 31
STio0 - 15
STio16 - 31
STio0 - 15
STio16 - 23
STio24 - 31
2.048 Mb/s
2.048 Mb/s
4.096 Mb/s
4.096 Mb/s
8.192 Mb/s
Not available
8.192 Mb/s
Not available
2.048 Mb/s
8.192 Mb/s
Not available
1
1
0
1
1
0
8Mb/s, CT Bus Mode
HMVIP Mode
Table 2 - . Mode Selection for Backplane interface
DMS Register Bits
Modes
Local Interface
STi0 - 15
Data Rate
LMS1
LMS0
0
0
2Mb/s Mode
2.048 Mb/s
2.048 Mb/s
2.048 Mb/s
STo0 - 15
STi0 - 11
STi12
0
1
Sub-Rate
Switching
Mode
Sub-rate Switching Input Stream at 2.048 Mb/s
STi13 - 15
STo0 - 11
STo12
Not available
2.048 Mb/s
Sub-rate Switching Output Stream at 2.048Mb/s
STo13 - 15
STi0 - 3
Not available
8.192 Mb/s
Not available
8.192 Mb/s
Not available
1
0
8Mb/s Mode
STi4 - 15
STo0 - 3
STo4 - 15
Table 3 - . Mode Selection for Local Interface
9
MITEL [ MITEL NETWORKS CORPORATION ]
