m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 416

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

R
R
M
e
E
3
. v
J
Figure 25.2 ROMCP Register
Figure 25.3 Address to Store ID Code
2
0
1
9
C
3 .
B
8 /
0
1
3
0
3
J
G
4
a
0 -
n
o r
ROM Code Protect Control Address
b7
3 .
1
u
, 1
3
NOTES:
p
1
b6
2
(
1. When the ROMCR bit is set to "00
2. When the ROM code protect level 1 is enabled, the flash memory is protected against reading or
3. The ROMCP register can be written with the page program command.
4. When a value of the ROMCP address is "00
M
0
b5
protect level 1 is enabled, the ROMCR bit cannot be changed in parallel I/O mode. Change the
ROMCR bit in standard serial I/O mode, etc.
rewriting in parallel I/O mode.
0
3
6
2
b4
FFFFDC
FFFFE0
FFFFE4
FFFFE8
FFFFF8
FFFFFC
FFFFEC
FFFFF0
FFFFF4
C
Page 393
8 /
b3
1 1 1 1
, 3
b2
M
16
16
Address
16
16
16
16
16
16
16
b1
3
2
to FFFFEB
to FFFFFB
to FFFFE3
to FFFFE7
to FFFFF3
to FFFFF7
to FFFFFF
to FFFFDF
to FFFFEF
C
b0
f o
8 /
4
ROMCP1
3
(b3 - b0)
ROMCR
8
Symbol
) T
8
Bit
Symbol
ROMCP
16
16
16
16
16
16
16
16
16
Reserved Bit
ROM Code Protect
Reset Bit
ROM Code Protect
Level 1 Set Bit
2
", the ROM code protect level 1 is disabled. When the ROM code
Bit Name
ID1
ID2
ID3
ID4
ID5
ID6
ID7
(1)
Address
0FFFFFF
16
" or "FF
(2)
(3)
Undefined Instruction Vector
Overflow Vector
BRK Instruction Vector
Address Match Vector
Watchdog Timer Vector
NMI Vector
Reset Vector
16
16
4 bytes
", the ROM code protect function is disabled.
b5 b4
b7 b6
0 0 : Disables ROM code protection
0 1 : Enables the ROMCP bit
1 0 : Enables the ROMCP bit
1 1 : Enables the ROMCP bit
0 0 : Enables ROM code protection
0 1 : Enables ROM code protection
1 0 : Enables ROM code protection
1 1 : ROM code protection inactive
Set to "1"
After Reset
FF
Function
16
25. Flash Memory Version
RW
RW
RW
RW
RW
RW