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DS26521 Datasheet(PDF) 166 Page - Maxim Integrated Products

Part # DS26521
Description  Single T1/E1/J1 Transceiver
PDF  258 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS26521 Datasheet(HTML) 166 Page - Maxim Integrated Products

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DS26521 Single T1/E1/J1 Transceiver
166 of 258
Register Name:
RGCCS1, RGCCS2, RGCCS3, RGCCS4
Register Description:
Receive Gapped-Clock Channel Select Registers 1 to 4
Register Address:
0CCh, 0CDh, 0CEh, 0CFh
Bit #
7
6
5
4
3
2
1
0
Name
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
RGCCS1
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
RGCCS2
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
RGCCS3
CH32
CH31
CH30
CH29
CH28
CH27
CH26
CH25
(F-bit)
RGCCS4*
(E1 Mode
Only)
Default
0
0
0
0
0
0
0
0
Bits 7 to 0: Receive Gapped Clock Channel Select Bits for Channels 1 to 32 (CH[1:32]).
0 = no clock is present on RCHCLK during this channel time
1 = force a clock on RCHCLK during this channel time. The clock will be synchronous with RCLK if the
elastic store is disabled, and synchronous with RSYSCLK if the elastic store is enabled.
*Note that RGCCS4 has two functions:
When 2.048MHz backplane mode is selected, this register allows the user to enable the gapped clock on
RCHCLK for any of the 32 possible backplane channels.
When 1.544MHz backplane mode is selected, the LSB of this register determines whether or not a clock is
generated on RCHCLK during the F-bit time:
RGCCS4.0 = 0, do not generate a clock during the F-bit.
RGCCS4.0 = 1, generate a clock during the F-bit.
In this mode, RGCCS4.1:RGCCS4.7 should be set to 0.
Register Name:
RCICE1, RCICE2, RCICE3, RCICE4
Register Description:
Receive Channel Idle Code Enable Registers 1 to 4
Register Address:
0D0h, 0D1h, 0D2h, 0D3h
Bit #
(MSB) 7
6
5
4
3
2
1
0 (LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
RCICE1
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
RCICE2
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
RCICE3
Name
CH32
CH31
CH30
CH29
CH28
CH27
CH26
CH25
RCICE4
(E1 Mode
Only)
Default
0
0
0
0
0
0
0
0
Bits 7 to 0: Receive Channel Idle Code Insertion Control Bits for Channels 1 to 32 (CH[1:32]).
0 = do not insert data from the Idle Code Array into the receive data stream
1 = insert data from the Idle Code Array into the receive data stream



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