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S/UNI-JET Data Sheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1990267, Issue 3
259
13 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