M16CSLASH29 datasheet(360/499 Pages) RENESAS

360 / 499 page

20. Flash Memory Version

page 336

Symbol

Address

Factory Setting

ROMCP

0FFFFF16

FF16 (4)

ROM Code Protect Control Address(5)

Bit Name

Function

Bit Symbol

b7 b6 b5 b4 b3 b2 b1 b0

00:

01:

10:

11: Disables protect

ROM Code Protect Level

1 Set Bit (1, 2, 3, 4)

ROMCP1

b7 b6

Reserved Bit

Set to 1

Enables protect

}

NOTES:

1. When the ROM code protect is active by the ROMCP1 bit setting, the flash memory is protected

against reading or rewriting in parallel I/O mode.

2. Set the bit 5 to bit 0 to 1111112 when the ROMCP1 bit is set to a value other than 112. When the bit 5

to bit 0 are set to values other than 1111112, the ROM code protection may not become active by

setting the ROMCP1 bit to a value other than 112.

3. To make the ROM code protection inactive, erase a block including the ROMCP address in standard

serial I/O mode or CPU rewrite mode.

4. The ROMCP address is set to FF16 when a block, including the ROMCP address, is erased.

5. When a value of the ROMCP address is 0016 or FF16, the ROM code protect function is disabled.

(b5-b0)

Reset vector

Watchdog timer vector

Single step vector

Address match vector

BRK instruction vector

Overflow vector

Undefined instruction vector

ID7

ID6

ID5

ID4

ID3

ID2

ID1

DBC vector

NMI vector

0FFFFF16 to 0FFFFC16

0FFFFB16 to 0FFFF816

0FFFF716 to 0FFFF416

0FFFF316 to 0FFFF016

0FFFEF16 to 0FFFEC16

0FFFEB16 to 0FFFE816

0FFFE716 to 0FFFE416

0FFFE316 to 0FFFE016

0FFFDF16 to 0FFFDC16

4 bytes

Address

ROMCP

Figure 20.4 ROMCP Address

Figure 20.5 Address for ID Code Stored

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