PM6344 datasheet(228/256 Pages) PMC

228 / 256 page

STANDARD PRODUCT

PMC-Sierra, Inc.

PM6344 EQUAD

PMC-951013

ISSUE 5

QUADRUPLE E1 FRAMER

215

8) Further wait until at least five signaling multiframes have been received (> 10

ms) to give SIGX time to unfreeze and debounce the signaling data.

9) Verify that the SIGX signaling data registers contain the expected value (that

transmitted by the PCSC functional block). If not, return to Step (1). This is

accomplished by reading the SIGX typical timeslot signaling for timeslots 1-

15 and 17-31. The values returned should contain 55H -- if not, return to Step

(1).

10)Change the signaling data transmitted by the PCSC for all channels. A value

of FFH should be written to the PCSC Data Control byte for timeslots 1-15

and 17-31. This will configure the PCSC to insert a signaling state of

ABCD=1111.

11) Wait until at least three signaling multiframes have been received (> 6 ms)

to give SIGX time to extract and debounce the new signaling data.

12) Verify that the SIGX signaling data registers contain the new values. If not,

return to Step (1).

This is accomplished by reading the SIGX Typical Timeslot Signaling Data

Registers for timeslots 1-15, 17-31. The values returned should contain

FFH. If not, return to Step (1).

13) The self-test passed -- The EQUAD is ready for operation.

The EQUAD can now be configured for the desired application. It is

allowable to reconfigure the PCSC and SIGX functional blocks.

Every time a reset (software or hardware) occurs, the above procedure, Steps (1)

through (13), should be performed for each quadrant in the EQUAD.

PM6344 Datasheet(PDF) 228 Page - PMC-Sierra, Inc