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SH7052 Datasheet(PDF) 733 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 733 Page - Renesas Technology Corp |
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733 / 919 page  707 On-Chip RAM Area Divisions in Boot Mode: In boot mode, the RAM area is divided into an area used by the boot program and an area to which the programming control program is transferred via the SCI, as shown in figure 20.11. The boot program area cannot be used until the execution state in boot mode switches to the programming control program transferred from the host. H'FFFF8000 H'FFFF87FF H'FFFFAFFF Boot program area ( 2 kbytes) Programming control program area (10 kbytes) H'FFFF8000 H'FFFF87FF H'FFFFBFFF Boot program area ( 2 kbytes) Programming control program area (14 kbytes) SH7052F SH7053F Figure 20.11 RAM Areas in Boot Mode Note: The boot program area cannot be used until a transition is made to the execution state for the programming control program transferred to RAM. Note also that the boot program remains in this area of the on-chip RAM even after control branches to the programming control program. |
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