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M32C/86 데이터시트(PDF) 425 Page - Renesas Technology Corp

부품명 M32C/86
상세설명  RENESAS 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES
PDF  505 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M32C/86 데이터시트(HTML) 425 Page - Renesas Technology Corp

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Single-chip mode(1)
Set the MCD and PM1 registers(2)
Set the FMR01 bit to "1" (CPU rewrite mode
enabled) after writing "0"
Set the FMR11 bit to "1" (EW mode 1) after
writing "0"(3)
Program in the ROM
Procedure to Enter EW Mode 1
Execute the software commands
Set the FMR01 bit to "0"
(CPU rewrite mode disabled)(4)
NOTES:
1. In EW mode 1, do not enter memory expansion or boot mode.
2. In CPU rewrite mode, set the MCD register to be the 10-MHz CPU clock frequency or less. Set
the PM12 bit in the PM1 register to "1" (internal access wait).
3. To set the FMR01 bit to "1", set it to "1" in 8-bit unit immediately after setting it first to "0". Do not
generate an interrupt or a DMA transfer between setting the FMR01 bit to "0" and setting it to "1".
To set the FMR11 bit to "1", set it to "1" in 8-bit unit immediately after setting it first to "0". Do not
generate an interrupt or a DMA transfer between setting the FMR11 bit to "0" and setting it to "1".
Set the FMR01 and FMR11 bits while the NMI pin is held "H".
4. To change the FMR01 bit setting from "1" to "0", enter read array mode to write to addresses
005716 in 16-bit unit. Write "0016" into 8 high-order bits.
Figure 25.7 How to Enter and Exit EW Mode 1



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