m28529-12 Mindspeed Technologies, m28529-12 Datasheet - Page 97

• Manufacturer Part Number: m28529-12
• Description: Inverse Multiplexing For Atm Ima Family
• Manufacturer: Mindspeed Technologies

Figure 1-22. T1/E1 using Internal Serial ports; IMA_RefClk equals line rate
1.12.5.2
Figure 1-23
external. Up to 32 links and 32 groups can be supported using external Cell Delineators. For the discussion below,
assume the link rates are less than 3.072 Mbps.
28529-DSH-001-K
IMA_LINK_TYPE = IMA_DS1
IMA_DSL_USE_REF_CLK2 = IMA_INACTIVE
IMA_DSL_REF_GENERATOR = IMA_INACTIVE
IMA_ALT_RX_TRL = IMA_INACTIVE
IMA_GRP_TX_TRL_SRC = IMA_REF_CLK1 (grp#)
IMA_GRP_RX_TRL_SRC = IMA_RX_TRL_(x) (grp#)
24 x line rate
IMA_RefClk
IMA_SysClk
SPRxClk 0
illustrates the configuration most commonly used with applications that require more the TC block to be
General Notes:
TxClav Transition
1. SPRxCLK 1-31 are identical but not shown for clarity
2. RM - Rate Multiplier.
DSL/T1/E1 Using UTOPIA-to-UTOPIA Interfaces
Transition
Detector
Transition
Detector
Mindspeed Proprietary and Confidential
Mindspeed Technologies
Pre-Scaler
/16
/24
RM
RM
1
1
RM
1
Synchronizer
ref
Synchronizer
ref
ref
n*8kHz
Synchronizer
NCO
ref
®
RM
1
up/down adjust
n*8kHz
n*8kHz
Note 2
Note 2
NCO
NCO
RM
424
Functional Description
IDCR Clk Mux
Comparator
Phase
82