m28529-12 Mindspeed Technologies, m28529-12 Datasheet - Page 93

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

Figure 1-18. Serial DSL Configurations
1.12.4.2
The UTOPIA mode applications are similar to the serial mode but the serial clocks are not typically used (or always
available). In UTOPIA mode, the M28529 device only has the SPRxClk[23:0] inputs available for those applications
that can take advantage of them. As noted, these aren’t typically used.
1.12.4.2.1
The T1/E1 UTOPIA application is shown in
the M28529 device. Since the device does not provide 32 serial clocks, the IMA function most often is configured to
use its internal clock synthesizers when operating in the “Slave / External” configuration. This approach is used
when operating in fractional T1/E1 applications.
28529-DSH-001-K
UTOPIA Mode
T1/E1 Configurations
DSL
DSL
NTR Source
DSL Clock
32
DSL System
I/F
I/F
Clock
Mindspeed Proprietary and Confidential
Mindspeed Technologies
Selection
Clock
DSP
DSP
Figure
NTR
NTR
Framer
Framer
1-19. It is similar to
32
8 kHz
Tx_TRL[0]
SPRxClk[0]
SPTxClk[0]
SPRxClk[31]
SPTxClk[31]
®
Figure 1-17
M28529
IMA_SysClk
IMA_RefClk
with the TC blocks external to
Functional Description
33 - 66 MHz
Oscillator
Local
78