M16CSLASH29 datasheet(356/499 Pages) RENESAS

356 / 499 page

20. Flash Memory Version

page 332

20.2 Memory Map

The flash memory contains the user ROM area and the boot ROM area (reserved area). Figures 20.1 to

20.3

show a block diagram of the flash memory. The user ROM area has space to store the MCU operation

program in single-chip mode and two 2-Kbyte spaces: the block A and B.

The user ROM area is divided into several blocks. The user ROM area can be rewritten in CPU rewrite,

standard serial I/O, parallel I/O, or CAN I/O mode.

However, to rewrite program in block 0 and 1 in CPU rewrite mode, set the FMR02 bit in the FMR0 register

to 1 (block 0, 1 rewrite enabled) and the FMR16 bit in the FMR1 register to 1 (blocks 0 to 5 rewrite enabled).

Also, to rewrite program in blocks 2 to 5 in CPU rewrite mode, set the FMR16 bit in the FMR1 register to 1

(blocks 0 to 5 rewrite enabled). When the PM10 bit in the PM1 register is set to 1 (data space access

enabled), blocks A and B can be available for use.

00FFFF16

Block B :2K bytes(2)

00F00016

4K bytes(4)

0FF00016

0FFFFF16

Boot ROM area

0FE00016

0FC00016

0FDFFF16

0F800016

Block 2 : 16K bytes

0FBFFF16

0F7FFF16

0F000016

0FFFFF16

User ROM area

Block A :2K bytes (2)

Block 2 : 16K bytes (5)

Block 3 : 32K bytes (5)

Block 1 : 8K bytes (3)

Block 0 : 8K bytes (3)

00F7FF16

00F80016

NOTES:

1. To specify a block, use the maximum even address in the block.

2. Blocks A and B are enabled to use when the PM10 bit in the PM1

3. Blocks 0 and 1 are enabled for programs and erases when the

FMR02 bit in the FMR0 register is set to 1 and the FMR16 bit in

the FMR1 register is set to 1. (CPU rewrite mode only)

4. The boot ROM area is reserved. Do not access.

5. Blocks 2 and 3 are enabled for programs and erases when the

FMR16 bit in the FMR1 register is set to 1. (CPU rewrite mode

only)

(Data space)

(Program space)

Figure 20.1 Flash Memory Block Diagram (ROM capacity 64 Kbytes)

M16C/29 датащи(PDF) 356 Page - Renesas Technology Corp

M16C/29 датащи(HTML) 356 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL