PM7347 datasheet(259/341 Pages) PMC

259 / 341 page

S/UNI®-JET Data Sheet

Released

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use

259

Document ID: PMC-1990267, Issue 3

Operation

13.1

Software Initialization Sequence

Using the following software initialization sequence puts the S/UNI-JET in a normal power

consumption state. PMC-Sierra™ strongly recommends using this reset sequence to guarantee the

device’s long term reliability.

Note: After a reset, the S/UNI-JET may start using more power than is required. While the

device’s normal operations are not altered, the excessive power consumption can cause the device

to give off high levels of heat, which in turn, could lead to future problems with the device.

To initialize the device:

• Reset the S/UNI-JET.

• Set IOTST (bit 2) in the Master Test Register (datasheet pg. 291) to '1' (by writing 00000100

to register 400H).

• Put the S/UNI-JET Receive Cell Processor (RXCP) into test mode by writing:

00000101 to test register 461H

00000101 to test register 561H

00000101 to test register 661H

00000101 to test register 761H

• Set the S/UNI-JET Receive Cell Processor block built in set test (BIST) controls signals by

writing:

01000000 to test register 462H

01000000 to test register 562H

01000000 to test register 662H

01000000 to test register 762H

10101010 to test register 463H

10101010 to test register 563H

10101010 to test register 663H

10101010 to test register 763H

• Put the S/UNI-JET Transmit Cell Processor (TXCP) into test mode by writing:

00000011 to test register 481H

00000011 to test register 581H

00000011 to test register 681H

00000011 to test register 781H

PM7347 Folha de dados(PDF) 259 Page - PMC-Sierra, Inc