ds2156gn Maxim Integrated Products, Inc., ds2156gn Datasheet - Page 59
ds2156gn
Manufacturer Part Number
ds2156gn
Description
Ds2156, Ds2156l, Ds2156ln T1/e1/j1 Single-chip Transceiver Tdm/utopia Ii Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2156GN.pdf
(265 pages)
- Current page: 59 of 265
- Download datasheet (2Mb)
8.4
Receive-side digital-milliwatt code generation involves using the receive digital-milliwatt registers
(T1RDMR1/2/3) to determine which of the 24 T1 channels of the T1 line going to the backplane should
be overwritten with a digital-milliwatt pattern. The digital-milliwatt code is an 8-byte repeating pattern
that represents a 1kHz sine wave (1E/0B/0B/1E/9E/8B/8B/9E). Each bit in the T1RDMRx registers
represents a particular channel. If a bit is set to a 1, then the receive data in that channel is replaced with
the digital-milliwatt code. If a bit is set to 0, no replacement occurs.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Receive Digital-Milliwatt Enable for Channels 1 to 8 (CH1 to CH8)
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Receive Digital-Milliwatt Enable for Channels 9 to 16 (CH9 to CH16)
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Receive Digital-Milliwatt Enable for Channels 17 to 24 (CH17 to CH24)
T1 Receive-Side Digital-Milliwatt Code Generation
0 = do not affect the receive data associated with this channel
1 = replace the receive data associated with this channel with digital-milliwatt code
0 = do not affect the receive data associated with this channel
1 = replace the receive data associated with this channel with digital-milliwatt code
0 = do not affect the receive data associated with this channel
1 = replace the receive data associated with this channel with digital-milliwatt code
CH16
CH24
CH8
7
7
7
0
0
0
CH15
CH23
CH7
T1RDMR1
T1 Receive Digital-Milliwatt Enable Register 1
0Ch
T1RDMR2
T1 Receive Digital-Milliwatt Enable Register 2
0Dh
T1RDMR3
T1 Receive Digital-Milliwatt Enable Register 3
0Eh
6
0
6
0
6
0
CH14
CH22
CH6
5
0
5
0
5
0
CH13
CH21
CH5
4
0
4
0
4
0
59 of 265
CH12
CH20
CH4
3
0
3
0
3
0
CH11
CH19
CH3
2
0
2
0
2
0
CH10
CH18
CH2
1
0
1
0
1
0
CH17
CH1
CH9
0
0
0
0
0
0
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