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參數(shù)資料
| 型號： | MT90863AL1 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | 3V Rate Conversion Digital Switch |
| 中文描述： | 3V的速率轉(zhuǎn)換數(shù)字開關 |
| 文件頁數(shù)： | 21/35頁 |
| 文件大小： | 154K |
| 代理商： | MT90863AL1 |
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Advance Information
MT90863
21
Table 15 -. Data Read (DRR) Register Bits
Table 16 - Blackplane Connection Memory Bits
Table 17 - BSAB Bits Programming for Different Local Interface mode
Bit
Name
Description
15 - 0
RD15 - RD0
Read Data Bits.
Data transferred from one of the internal memory locations.
Bit
Name
Description
15,14
Unused
Must be zero for normal operation.
13
BV/C
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
local interface streams.
12
BMC
Message Channel.
When 1, the backplane connection memory contents are
output on the corresponding output channel and stream. Only the lower byte
(bit 7 - bit 0) will be output to the backplane interface STio pins. When 0, the
local data memory address of the switched STi input channel and stream is
loaded into the backplane connection memory.
11
DC
Directional Control.
This bit enables the STio pindrivers on a per-channel
basis. When 1, the STio output driver functions normally. When 0, the STio
output driver is in a high-impedance state.
10-7
(Note 1)
BSAB3-0
Source Stream Address Bits.
The binary value is the number of the data
stream for the source of the connection.
6-0
(Note 1)
BCAB6-0
Source Channel Address Bits.
The binary value identifies the channel for
the connection source.
Note 1: If bit 12 (BMC) of the corresponding backplane connection memory location is 1 (device in message mode), then these
entire 8 bits (BSAB0, BCAB6 - BCAB0) are output on the output channel and stream associated with this location.
Data Rate
BSAB3 to BSAB0 Bits Used to Determine
the Source Stream of the connection
2.048 Mb/s
STi0 to STi15
8.192 Mb/s
STi0 to STi3
2.048 Mb/s
Sub-rate Switching
STi0 to STi12
Read Address:
Reset value:
0E
H
for DRR register,
0000
H
7
6
5
4
3
2
1
0
8
9
10
11
12
13
RD0
RD1
RD2
RD3
14
15
RD4
RD5
RD6
RD7
RD8
RD9
RD10
RD11
RD12
RD13
RD14
RD15
7
6
5
4
3
2
1
0
8
9
10
11
12
13
BCAB
0
BCAB
1
BCAB
2
BSAB
0
BCAB
3
BCAB
4
BCAB
5
BSAB
1
BSAB
2
BSAB
3
DC
BMC
14
0
15
BV/C
0
6
BCAB
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