ZL50019 ZARLINK [Zarlink Semiconductor Inc], ZL50019 Datasheet - Page 81
ZL50019
Manufacturer Part Number
ZL50019
Description
Enhanced 2 K Digital Switch with Stratum 4E DPLL
Manufacturer
ZARLINK [Zarlink Semiconductor Inc]
Datasheet
1.ZL50019.pdf
(115 pages)
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When CMM is one, the device is programmed to perform one of the special per-channel transmission modes. Bits
PCC0 and PCC1 from connection memory are used to select the per-channel tristate, message or BER test mode
as shown in Table 53 on page 81.
14 - 11
10 - 3
Note: For proper
13 - 9
Bit
8 - 1
15
Bit
14
UA
EN
15
UA
EN
15
0
14
Table 52 - Connection Memory Low (CM_L) Bit Assignment when CMM = 0
Table 53 - Connection Memory Low (CM_L) Bit Assignment when CMM = 1
V/C
0
14
MSG7 - 0
SCA7 - 0
CMM = 0
SSA4 - 0
Unused
Name
Name
UAEN
V/C
13
0
SSA
µ-
13
4
law/A-law conversion, the CM_H bits should be set before Bit 15 (UAEN bit) is set to high.
12
0
SSA
12
3
Variable/Constant Delay Control
When this bit is low, the output data for this channel will be taken from con-
stant delay memory.
When this bit is set to high, the output data for this channel will be taken from
variable delay memory. Note that VAREN must be set in Control Register
first.
Source Stream Address
The binary value of these 5 bits represents the input stream number.
Source Channel Address
The binary value of these 8 bits represents the input channel number.
Connection Memory Mode = 0
If this is low, the connection memory is in the normal switching mode. Bit13 -
1 are the source stream number and channel number.
11
Conversion between µ-law and A-law Enable (Message mode only)
When this bit is low, message mode has no µ-law/A-law conversion. Connec-
tion memory high will be ignored.
When this bit is high, message mode has µ-law/A-law conversion, and con-
nection memory high controls the conversion method.
Reserved
In normal functional mode, these bits MUST be set to zero.
Message Data Bits
8-bit data for the message mode. Not used in the per-channel tristate and
BER test modes.
0
SSA
11
MSG
2
10
7
SSA
10
1
MSG
9
6
Zarlink Semiconductor Inc.
SSA
9
0
MSG
8
5
ZL50019
SCA
8
7
MSG
81
7
4
SCA
7
6
MSG
Description
6
3
Description
SCA
6
5
MSG
5
2
SCA
5
4
MSG
4
1
SCA
4
3
MSG
3
0
SCA
3
2
PCC
2
1
SCA
2
1
PCC
SCA
1
0
1
0
Data Sheet
CMM
CMM
=1
=0
0
0
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