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

24

Freescale Semiconductor

CPM111

FCC Missing Reset

Date Added: 1/15/2004

Description: The TxBD may not close for the FCC in Half-Duplex 10BaseT Ethernet. There may

be a mismatch between the actual transmitted BD and the BD for which the status is updated. As

a result, the status of one to three BDs may not be updated. They appear to be “ready” although

the associated frames have been transmitted (assuming a frame per BD).

Workaround: Use microcode patch provided by Freescale.

System Number: 11064

Fix Plan:

0K40A

CPM112

FCC Missing Reset at OverRun

Date Added: 12/19/2003

Description: TxBD may not be closed for FCC in Half-duplex 10BaseT Ethernet. There may be

a mismatch between the actual transmitted BD and the BD for which status is updated. As a result,

the status of one to three BDs may not be updated, and they would appear "Ready", although the

associated frames have been transmitted (assuming a frame per BD).

Workaround: Use microcode patch provided by Freescale.

System Number: 11064, 11067

Fix Plan: N/A

0K40A

CPM113

Date Added: 12/19/2003

Description: When the Event Register is read while the SCC, SPI, I

sometimes read as 0, even though it has some bits set.

Workaround:

System Number: 11068

Fix Plan:

0K40A

CPM115

APC Transmits Unwanted Idle Cells

Date Added: 12/19/2003

Description: In heavily loaded ATM applications, if the ATM pace controller (APC) is config-

ured for multiple priority levels and a burst of traffic for transmission is sustained long enough on

the highest priority APC table, then an unwanted idle cell can be trasmitted on the lower priority

APC tables when there are cells available in lower priority APC scheduling table for transmission.

The transmission of the unwanted idles could cause the valid ATM cells on lower-priority APC

scheduling tables not to be transmitted. This transmission of unwanted idles can affect all ATM

channels that are not located in the highest-priority APC scheduling table.

Workaround: Increase the size of lower-priority APC scheduling tables so they are large enough

to absorb any burst or back-to-back bursts on the highest-priority APC scheduling table. Other-

wise, use the microcode patch available from Freescale.

System Number: 11069

Fix Plan:

0K40A

CPM116

Pointer 93 in Partially Filled (PFM) Mode

Date Added: 1/15/2004

Description: In PFM mode, the pointer value of 93 is not generated, causing the loss of synchro-

nization at the far end. Also, when the pointer value of 93 is received, the synchronization is lost,

which causes a loss of data and the resynchronization routine.

Workaround: Use microcode patch provided by Freescale.

System Number: 11912

Fix Plan:

0K40A

Table 2. Silicon Errata (Continued)

Errata

Number

Errata Description

Applies

to Mask