MT90863AG Zarlink, MT90863AG Datasheet - Page 30

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

15 - 0
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.
(Note 1)
(Note 1)
15,14
Bit
10-7
Bit
6-0
13
12
11
15
RD15
0
Read Address:
Reset value:
15
RD14
14
RD15 - RD0
0
14
BV/C
BSAB3-0
BCAB6-0
Name
Unused
RD13
13
Name
13
BV/C
BMC
DC
BMC
RD12
12
12
Table 16 - Blackplane Connection Memory Bits
DC
11
RD11
11
Read Data Bits. Data transferred from one of the internal memory locations.
0E
0000
Must be zero for normal operation.
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.
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.
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.
Source Stream Address Bits. The binary value is the number of the data
stream for the source of the connection.
Source Channel Address Bits. The binary value identifies the channel for
the connection source.
Table 15 - Data Read (DRR) Register Bits
H
BSAB
for DRR register,
10
RD10
H
3
10
BSAB
9
2
RD9
Zarlink Semiconductor Inc.
9
MT90863
BSAB
8
1
RD8
8
30
BSAB
RD7
7
0
7
BCAB
6
RD6
6
6
Description
Description
BCAB
5
RD5
5
5
BCAB
4
RD4
4
4
BCAB
3
RD3
3
3
BCAB
2
RD2
2
2
BCAB
1
RD1
1
1
Data Sheet
BCAB
0
RD0
0
0