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CX28560

Product Bulletin

Product Affected:

CX28560-11P, 680-pin TBGA package (40 mm)

This document describes conditions that may cause the operation of the above device to

deviate from published specifications.

TSLP Channel Status Register Always Reads Zero

Description:

Reading of the TSLP channel status register for any channel (at address: 0x128800 + channel

number) always returns zero, regardless of the actual channel status.

Recommended Action:

Use the alternative method below to access the channel status:

0x10C84 (in dwords from the PCI base address)

0x12C000 + 4 * channel number.

If the channel is active, bits 14–16 contain a value other than zero;

If the channel is inactive, bits 14–16 contain a value of zero.

register at offset 0x10C84 (in dwords from the PCI base address)

NOTE:

When using the driver, the procedure outlined above is incorporated into the

MlCn856xGetTxChanStatus () function so that no code changes are required.

500335A

April 22, 2002