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MC9S12P64CFT 参数 Datasheet PDF下载

MC9S12P64CFT图片预览
型号: MC9S12P64CFT
PDF下载: 下载PDF文件 查看货源
内容描述: 微控制器 [Microcontrollers]
分类和应用: 微控制器外围集成电路时钟
文件页数/大小: 566 页 / 7414 K
品牌: FREESCALE [ Freescale ]
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128 KByte Flash Module (S12FTMRC128K1V1)  
Table 13-55. Set User Margin Level Command Error Handling  
Register  
Error Bit  
Error Condition  
Set if CCOBIX[2:0] != 001 at command launch  
Set if command not available in current mode (see Table 13-27)  
ACCERR  
Set if an invalid global address [17:16] is supplied  
FSTAT  
Set if an invalid margin level setting is supplied  
FPVIOL  
MGSTAT1  
MGSTAT0  
None  
None  
None  
NOTE  
User margin levels can be used to check that Flash memory contents have  
adequate margin for normal level read operations. If unexpected results are  
encountered when checking Flash memory contents at user margin levels, a  
potential loss of information has been detected.  
13.4.5.13 Set Field Margin Level Command  
The Set Field Margin Level command, valid in special modes only, causes the Memory Controller to set  
the margin level specified for future read operations of the P-Flash or D-Flash block.  
Table 13-56. Set Field Margin Level Command FCCOB Requirements  
CCOBIX[2:0]  
FCCOB Parameters  
Global address [17:16] to identify the Flash  
block  
000  
001  
0x0E  
Margin level setting  
Upon clearing CCIF to launch the Set Field Margin Level command, the Memory Controller will set the  
field margin level for the targeted block and then set the CCIF flag.  
NOTE  
When the D-Flash block is targeted, the D-Flash field margin levels are  
applied only to the D-Flash reads. However, when the P-Flash block is  
targeted, the P-Flash field margin levels are applied to both P-Flash and D-  
Flash reads. It is not possible to apply field margin levels to the P-Flash  
block only.  
Valid margin level settings for the Set Field Margin Level command are defined in Table 13-57.  
S12P-Family Reference Manual, Rev. 1.13  
Freescale Semiconductor  
465  
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