 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
EB632 数据表(PDF) 71 Page - Freescale Semiconductor, Inc |
|
|
|||||||||||||||||||||||||||||
EB632 数据表(HTML) 71 Page - Freescale Semiconductor, Inc |
|
|
71 / 112 page  Errata Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M), Rev. 2 Freescale Semiconductor 71 CPM86 Random PHY Number For FCC RX in Single-PHY Master Mode Date Added: 5/21/2002 Description: When the FCC Receive ATM controller is configured for Single PHY Master mode (FPSMR[RUMP]=0, FPSMR[RUMS]=0) and FPSMR [LAST PHY / PHY ID] is not equal to ze- ro, a random PHY ID might be allocated to the incoming cells instead of the expected zero (for Single-PHY). This will result in a loss of cells. This configuration is typical when using the FCC Transmit ATM controller in Multi-PHY Master mode together with the FCC Receive ATM con- troller in Single PHY Master mode. Workaround: The Address Lookup Mechanism should be created in such a way that for any PHY Addr input, the Output will be as for PHY 0. 0K40A 1K42A 2K42A CPM88 MCC Transmit GUN when MCC STOP RX CPCR Command is used Date Added: 10/15/2002 Description: An MCC may experience a highly intermittent transmit GUN event indication, re- lated to MCC receive channels that have been stopped via the MCC STOP RX host CPCR com- mand. This GUN can happen unrelated to internal CPM loading or other external factors. Workaround: Avoid using MCC STOP RX command using one of the following mechanisms: 1. Simply stop the TDM or 2. Use shadow RAM and dynamically remove the desired MCC RX channel entry from SIRAM programming (see 8260 User manual chapter 14). The following pro- cedure should be utilized, using an extra redundant shadow RAM switch. This is done to provide a full TDM frame’s amount of time to ensure receive activity is complete and will avoid the issue: a. Re-program shadow SIRAM to remove channel to be stopped. b. Switch to shadow SIRAM and wait for that TDM’s bit in the SIxSTR register to change to indicate switch complete. c. Copy this new shadow RAM programming back to the main SIRAM bank. d. Switch to active RAM, again wait for switch to complete. e. Then software can re-initialize or modify the removed channel’s RX parameters. System Number: 2905 Fix Plan: RevA 0K40A 1K42A 2K42A CPM95 ATM False Indication of Mis-Inserted Cells Date Added: 2/25/2003 Description: There is a false indication of unassigned bits in the PHY:VPI:VCI which could cause ATM cells to be treated as mis-inserted cells and therefore be discarded. Workaround: Use microcode patch available from Freescale. Fix Plan: RevA 0K40A 1K42A 2K42A Table 48. Errata Resolved in Mask Set 2K87M (Continued) Errata Number Errata Description Applies to Mask |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
