EB632 datasheet(62/112 Pages) FREESCALE

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Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M), Rev. 2

Freescale Semiconductor

Errata

CPM6

Erroneous Report of Overrun on FCC

Date Added: 5/30/2000

Description: Spurious overrun indications on the FCC may occur in the following cases:

After stop transmit command is issued.

Following CTS lost condition.

Late collision under ethernet.

Workaround: None

System Number: 1746

0K40A

1K42A

2K42A

CPM7

Erroneous Report of Overrun With Fast Ethernet

Date Added: 5/30/2000

Description: If the CRS (carrier sense) signal is deasserted while fast ethernet frame is transmit-

ted, an overrun error may occur and the FCC may have to be reset.

Workaround: None

System Number: 1752

0K40A

1K42A

2K42A

CPM8

Error on Transmit On Demand Register

Date Added: 5/30/2000

Description: The TODR mechanism may freeze serial channels.

Workaround: Do not use TODR.

System Number: 2484

0K40A

1K42A

2K42A

CPM9

Erroneous Reception of ATM Cell

Date Added: 5/30/2000

Description: Under certain conditions, an ATM receiver may receive cells of PHYs which were

not addressed for it. Details of the condition:

•

ATM receiver in UTOPIA slave mode.

•

FIFO full condition occurred (this happens only when the transmitter violates the UTOPIA

standard requirements: transmits data without CLAV).

•

Transmitter changed selected PHY number.

•

FIFO full condition ended (CPM read some data from FIFO).

Workaround: Use different VPI/VCI for different PHYs or expect the cells to be discarded by

higher-level protocol software.

System Number: 2493

0K40A

1K42A

2K42A

CPM10

Error in ATM Underrun Report

Date Added: 5/30/2000

Description: In ATM, a Transmit internal rate underrun error is not reported correctly in the

TIRU field of the FCCE register. In most cases, TIRU is not set in the FCCE when an internal rate

underrun error occurs. In some rare cases that depend on internal sequences within the communi-

cations controller, the TIRU bit may be set as expected when the error should be reported.

Workaround: None

System Number: 2611

0K40A

1K42A

2K42A

Table 48. Errata Resolved in Mask Set 2K87M (Continued)

Errata

Number

Errata Description

Applies

to Mask

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