m28529-12 Mindspeed Technologies, m28529-12 Datasheet - Page 31

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

Figure 1-6.
1.5
Two versions of Mindspeed's IMA solution are available: M28525 and the M28529. All use the same software
drivers and are basically pin compatible.
Table 1-7.
The following three configurations are available:
•
•
•
*
Highway mode is enabled by setting the EnIHx (x = 0 to 7) bit in the appropriate TCCTRLx (x = 0 to 7) register.
28529-DSH-001-K
M28525
M28529
Note: Interleaved Highway can be mixed with serial mode on a per group of four channel basis. Interleaved
Footnote:
(1) Internal memory is disabled when the external bus is used.
(2) Normally, 0x1F is the NULL address; however, the M28529 can be configured to treat it as a valid port address.
UTOPIA-to-Serial
UTOPIA-to-UTOPIA
UTOPIA-to-Interleaved Highway*
Device
M28529 in NodeB/RNC Application
Available Parts
Pin Definitions
Device
Device
Layer
Layer
Device
Device
ATM
ATM
Layer
Layer
ATM
ATM
*
Utopia
Internal memory
Controller
Controller
Controller
Controller
CX28229
CX28229
CX28229
CX28229
IMA
IMA
IMA
IMA
512 Kbytes
512 Kbytes
Subsystem
Serial
RF
Mindspeed Proprietary and Confidential
Mindspeed Technologies
CX28398
CX28398
CX28398
CX28398
Framer
Framer
Framer
Framer
Table 1-7
Serial
NodeB
CX28380
CX28380
CX28380
CX28380
CX28380
CX28380
CX28380
CX28380
External memory
LIU
LIU
provides a quick comparison of the two devices.
LIU
LIU
x2
x2
x2
x2
LIU
LIU
LIU
LIU
2 Mbyte
2 Mbyte
interface
(1)
(1)
CX28380
CX28380
LIU
LIU
x8
x8
8xT1/E1
links
Serial
®
CX28395
CX28395
Framer
Framer
UTOPIA addresses
32-port solution
0–15, 31 (NULL)
(PHY side)
Serial
0–31
Controller
Controller
M28529
(2)
M28529
IMA
IMA
Functional Description
Utopia
RNC
Device
Layer
Device
ATM
Layer
ATM
Serial ports
16
32
16