參數(shù)資料
型號(hào)： MSC8101
廠商： MOTOROLA INC
元件分類(lèi)： 數(shù)字信號(hào)處理
英文描述： Network Digital Signal Processor
中文描述： 64-BIT, 100 MHz, OTHER DSP, PBGA332
封裝： FLIP CHIP, PLASTIC, BGA-332
文件頁(yè)數(shù)： 15/28頁(yè)
文件大?。?/td> 378K
代理商： MSC8101
Silicon Errata for the MSC8101 Processor, Mask 0K40A, Rev. 5
Freescale Semiconductor
15
CPM36
SI SYNC Timing Restriction
Date Added:
5/30/2000
Description:
SI’s sync signal may not change exactly on clock edge in the following cases. The
bug affects operation only when the SI is in one of two modes:
fsd = 00, ce = 0, fe = 0, dsc=1
(Sync sampled with falling edge -> Sync should not change on rising edge)
fsd = 00, ce = 1, fe = 1, dsc=1
(Sync sampled with rising edge -> Sync should not change on falling edge).
Workaround:
When working in these modes, the sync signal to the SI should be manipulated
such that it does not change on the exact edge of the serial clock. Toggle the sync at least 5ns after
the edge. One way to implement such a workaround is to add a noninverting buffer between the
device that generates the sync signal and the MSC8101 that uses it.
System Number:
3258
Fix Plan:
Rev A.
0K40A
CPM38
Heartbeat Error and Carrier Sense Lost Error On Two Frames
Date Added:
5/30/2000
Description:
There are rare cases when a heartbeat error and carrier sense lost error are reported
on two frames. The error is reported in the frame in which it occurred, but in those rare cases it is
also reported on an adjacent frame.
Workaround:
None
System Number:
1547,1550
Fix Plan:
Rev A
0K40A
CPM39
Corruption in AAL0 Cell Payload
Date Added:
5/30/2000
There is a rare case in using the ATM AAL0 transmitter that the AAL0 cell payload may
be corrupted. This can occur in certain internal sequence of events that the user cannot
detect or control.
1. Use the available microcode patch from the web site.
2. When working with AAL0 SAR, place the TCELL_TMP_BASE 64 byte align plus 4.
For example use TCELL_TMB_BASE = 0x2d04 not 0x2d00.
4648a
Rev A
0K40A
Table 2.
Silicon Errata (Continued)
Errata
Number
Errata Description
Applies
to Mask
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