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

Freescale Semiconductor

5

QSIU9

PowerPC Bus Speed Limited to 50MHz

Date Added: 10/5/2000:

Description: The PPC Bus and Local Bus are limited to 50 MHz operation.

Workaround: None. With Rev0 silicon, it is recommended to use 1:2.5:5 clock ratio

(Bus:CPM:Core) which will yield 125 MHz CPM and 250 MHz core when the bus clock frequen-

cy is set to 50 MHz.

System Number: 6355

Rev 0.1

0K40A

QSIU10

Spurious TEA Following Consecutive DPRAM, Register File Accesses

Date Added: 1/28/2001

Description: An access to the DPRAM followed immediately by a write to the SIU register file

may result in a spurious TEA. The write to the SIU register file is successful despite the TEA.

Workaround: None.

System Number: 6908

Fix Plan: Rev 0.1

0K40A

QSIU11

Loss of Data Integrity Caused By Excessive PLL Jitter

Date Added: 1/28/2001

Description: Excessive PLL jitter may cause loss of data integrity for accesses that cross the

Extended Core/Bus clock domain boundary in certain MODCK configurations.

Minimize PLL power supply noise and use clock configurations that result in input

clocks to both PLLs in the range of 20MHz-25MHz. For example, MODCK #40,

BUS:CPM:CORE = 1:2.5:5, with a 20MHz CLKIN which results in Bus = 48MHz, CPM

= 120MHz, Core = 240MHz.

System Number: 6915

Fix Plan: Rev 0.1

0K40A

QSIU13

Software Watchdog Cannot be Enabled after Boot from Host

Date Added: 8/5/2001

Description: The software watchdog is disabled when booting from host. It cannot be subse-

quently enabled because the SYPCR can only be written once.

Workaround: None

Fix Plan: Rev A

0K40A

QSIU15

60x Compatible Global Transaction Fail on RETRY

Date Added: 5/30/2000, modified 10/15/2002

Description: Data may be lost on RETRY when global transactions are performed in 60x com-

patible mode.

Workaround: When global transactions are used, 60x compatible mode cannot be used.

System Number: 5678

Fix Plan: RevA

0K40A

Table 2. Silicon Errata (Continued)

Errata

Number

Errata Description

Applies

to Mask