Silicon Errata for the MSC8101 Processor, Mask 0K40A, Rev. 5

22

Freescale Semiconductor

CPM96

ATM Performance Monitoring with AAL1 CES

Date Added: 2/25/2003

Description: ATM Performance Monitoring with AAL1 CES Data in DPRAM is corrupted

when performance monitoring is enabled in the receiver.

Workaround: Implement one of the following:

1.

Disable Receive Performance Monitoring RCT[PMT]=0.

2.

Use microcode patch available from Freescale.

Fix Plan: TBD

0K40A

CPM98

I

Date Added: 8/25/2003

counter is reset when the I2C controller detects a START condition. When an extra SCL clock

pulse is inserted between transactions (before START and after STOP conditions), the internal

counter may not get reset correctly. This could generate partial frames (less than 8 bits) in the next

transaction.

ital filter I2MOD[FLT] and additional filtering capacitors should be used on SCL to eliminate

clock spikes that may be misinterpreted as clock pulses.

System Number: MSIls09133

Fix Plan:

0K40A

CPM99

CPM 99: ABR TCTE[ER-TA] Corruption

Date Added: 8/25/2003

Description: When the AAL5 ABR ROM microcode is in use, the TCTE[ER-TA] field can be

overwritten with an erroneous value. This, in turn, causes the TCTE[ER-BRM] to be updated with

this value. Because TCTE[ER-BRM] holds the maximum explicit rate value allowed for B-RM

cells, an erroneous value in this field could have a detrimental effect on the network performance.

Workaround: Use the microcode patch available from Freescale

0K40A

CPM100

CPM 100: ABR TCTE Address Miscalculation

Date Added: 8/25/2003

Description: When using the AAL5 ABR ROM microcode with external ATM channels it is pos-

sible for the EXT_TCTE_BASE word value (written by the user to DPRAM) to be misread. In

this case calculations performed by the microcode to access the users programmed external TCTE

will be incorrect with a high chance of the access resulting in a CPM crash.

Workaround: Use the microcode patch available from Freescale.

System Number: MSIls09131

Fix Plan:

0K40A

Table 2. Silicon Errata (Continued)

Errata

Number

Errata Description

Applies

to Mask