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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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EB632 数据表(PDF) 75 Page - Freescale Semiconductor, Inc |
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EB632 数据表(HTML) 75 Page - Freescale Semiconductor, Inc |
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75 / 112 page  Errata Functional Differences Between MSC8101 (Mask 2K42A) and MSC8103 (Mask 2K87M), Rev. 2 Freescale Semiconductor 75 SC4 SC140 Core May Hang after Write to the PCTL0 Register Date Added: 2/19/2002 Description: Write to the PCTL0 freezes the core immediately for 150–190 cycles. If the system is busy (for example, doing pre-fetch transactions), the core may not exit the freeze state. Workaround: Option A: 1. Ensure the EFCOP is not active. 2. Ensure the local bus to L1 memory is not active. 3. Ensure that the program that writes to PCTL0 is in internal memory. 4. Write to PCTL0 immediately after reset before any external accesses. Option B: Do not write to PCTL0. System Number: 7560 Fix Plan: TBD 0K40A 1K42A 2K42A 2K87M SC5 SC140 Core May Hang after Illegal Execution Set Date Added: 2/19/2002 Description: Upon receipt of an illegal execution set, the SC140 core may enter a freeze state that can only be released by reset. Workaround: None available. System Number: 7541 Fix Plan: TBD 0K40A 1K42A 2K42A 2K87M SC6 Incorrect Data on Trace Buffer During Core Freeze Date Added: 2/19/2002 Description: After writing data to the Trace Buffer (TB), the TB is disabled in order to read from it. There are two options to read the TB and the problem occurs in both: 1. Reading the TB by software. If a core freeze occurs while the software reads the TB into a core register, data can overwrite the previous data. 2. Reading the TB from JTAG. If a core freeze occurs while the JTAG is reading the TB, the data is not correctly sampled. Workaround: 1. Software: Read the TB by software when there is no core freeze: a. Ensure that the program is in internal memory. b. Ensure that the EFCOP is not active. c. Ensure that the local bus to L1 memory is not active. d. Ensure that the Write Buffer is empty. e. Ensure that there are no other MOVE commands except for the TB read. 2. JTAG: a. Read the TB from JTAG only when the core is in Debug mode. b. Before reading the TB, flush the Write Buffer. System Number: 7604 Fix Plan: TBD 0K40A 1K42A 2K42A 2K87M Table 50. 2K87M Errata Errata Number Errata Description Applies to Mask |
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