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

10

Freescale Semiconductor

SC7

Change of Flow May Cause Incorrect Trace-Buffer Data

Date Added: 2/19/2002

Description: When programing the EOnCE for tracing events of change of flow (TCHOF) and

interrupts (TINT), the Trace-Buffer will be updated on every event by the source and destination

addresses. In the event of a CHOF (change of flow) to another CHOF with an interrupt request in

between, the Trace-Buffer will be updated with additional data. The additional data is incorrect

and is not needed for the trace.

Workaround: Perform post-processing after reading the Trace-Buffer. Search in the data for a

source address and the destination before it should be the destination of that source. That means

there is a destination which came before its source. Delete the source and the previous data.

7794

Fix Plan: TBD

0K40A

SC8

Debug Exception Request Form JTAG is Not Accepted During Core Freeze

Date Added: 5/21/2002

Description: JTAG debug exception request is not accepted by the Core during freeze. If the re-

quest is asserted and negated during core freeze, the request will be discarded.

Workaround: Assert Debug request from JTAG. When entering the exception routine, assert by

software an external pin (EE pin for example), to signal the exception Service Routine is now ex-

ecuted. After that, a new JTAG instruction can be written.

Fix Plan: TBD

0K40A

SC9

EE Pins Do Not Enable Different EOnCE Modules During Core Freeze

Date Added: 5/21/2002

Description: If EE pins are asserted to enable events in EOnCE during core freeze and the request

is negated during the same core freeze, the event is not enabled.

Workaround: Poll on Core status from JTAG. Assert the EE pin(s) until the Core is not in freeze

for at least 3 cycles.

Fix Plan: TBD

0K40A

CPM2

CAM Access Not Atomic

Date Added: 5/30/2000:

Description: The bus atomicity mechanism for CAM access may not function correctly when

the CPM’s DMA accesses the CAM. This only affects systems in which multiple CPMs will ac-

cess the CAM.

Workaround: None

System Number: 1410

Fix Plan: Rev A

0K40A

CPM4

No CTS Lost Indication with HDLC

Date Added: 5/30/2000

Description: When CTS is negated at the end of an HDLC frame, (last flag or one bit before)

transmission will be aborted. However, there is no CTS-LOST indication. There is only an abort

indication.

Workaround: None

System Number: 1670

Fix Plan: Rev A

0K40A

Table 2. Silicon Errata (Continued)

Errata

Number

Errata Description

Applies

to Mask