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H8SX/1663M Datasheet(PDF) 1141 Page - Renesas Technology Corp |
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H8SX/1663M Datasheet(HTML) 1141 Page - Renesas Technology Corp |
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1141 / 1504 page ![]() Section 25 Flash Memory Rev. 2.00 Sep. 24, 2008 Page 1109 of 1468 REJ09B0412-0200 Table 25.1 Differences between Boot Mode, User Program Mode, User Boot Mode, and Programmer Mode Item SCI Boot Mode Boot Mode User Program Mode User Boot Mode Programmer Mode Programming/ erasing environment On-board programming On-board programming On-board programming On-board programming Off-board programming Programming/ erasing enable MAT • User MAT • User MAT • User MAT • User MAT • User MAT • User boot MAT Programming/ erasing control Command Command Programming/ erasing interface Programming/ erasing interface Command All erasure O (Automatic) O (Automatic) O O O (Automatic) Block division erasure O* 1 O* 1 O O × Program data transfer From host via SCI From host via USB From desired device via RAM From desired device via RAM Via programmer RAM emulation × × O O × Reset initiation MAT Embedded program storage area Embedded program storage area User MAT User boot MAT* 2 Transition to user mode Changing mode and reset Changing mode and reset Completing Programming/ erasure* 3 Changing mode and reset Notes: 1. All-erasure is performed. After that, the specified block can be erased. 2. First, the reset vector is fetched from the embedded program storage area. After the flash memory related registers are checked, the reset vector is fetched from the user boot MAT. 3. In this LSI, the user programming mode is defined as the period from the timing when a program concerning programming and erasure is started to the timing when the program is completed. For details on a program concerning programming and erasure, see section 25.8.3, User Program Mode. |
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