MT90863AG Zarlink, MT90863AG Datasheet - Page 31

• Manufacturer Part Number: MT90863AG
• Description: RATE CONVERSION DIGITAL SWITCH
• Manufacturer: Zarlink

Bit
15
14
13
12
15
L/B
Sub-rate Switching
Sub-rate Switching
2.048 Mb/s
8.192 Mb/s
2.048 Mb/s
2.048 Mb/s
8.192 Mb/s
2.048 Mb/s
Data Rate
Data Rate
BV/C
14
Table 17 - BSAB Bits Programming for Different Local Interface mode
BMC
13
Name
LV/C
LMC
L/B
OE
Table 18 - BCAB Bits Programming for Different Data Rates
OE
12
LSAB
Table 19 - Local Connection Memory Low Bits
11
4
Local/Backplane Select
When 1, the output channel of STo0-15 comes from STi0-15 (local)
When 0, the output channel of STo0-15 comes from:
Variable /Constant Throughput Delay. This bit is used to select either
variable (low) or constant delay (high) modes on a per-channel basis for the
source streams.
Message Channel. When 1, the contents of the local connection memory are
output on the corresponding output channel and stream. Only the lower byte
(bit 7 - bit 0) will be output to the STo pins of the local interface. When 0, the
backplane or local data memory address of the switched input channel and
stream is loaded into the local connection memory.
Output Enable. This bit enables the drivers of STo pins on a per-channel
basis. When 1, the STo output driver functions normally. When 0, the STo
output driver is in a high-impedance state.
BCAB Bits Used to Determine the Source Channel of the Connection
LSAB
10
3
LSAB
9
2
Zarlink Semiconductor Inc.
MT90863
LSAB
BSAB3 to BSAB0 Bits Used to Determine
8
1
the Source Stream of the connection
BCAB6 to BCAB0 (128 channel/frame)
BCAB6 to BCAB0 (128 channel/frame)
31
BCAB4 to BCAB0 (32 channel/frame)
BCAB4 to BCAB0 (32 channel/frame)
LSAB
7
0
LCAB
6
6
Description
STi0 to STi15
STi0 to STi12
STi0 to STi3
STio0-31 (backplane, 2 Mb/s mode)
STio0-31 (backplane, 4 Mb/s mode)
STio0-15 (blackplane, 8 Mb/s mode)
STio0-23 (blackplane, HMVIP mode)
LCAB
5
5
LCAB
4
4
LCAB
3
3
LCAB
2
2
LCAB
1
1
Data Sheet
LCAB
0
0