mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 512

• Manufacturer Part Number: mc9s12c32mpb16
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 18 32 Kbyte Flash Module (S12FTS32KV1)
18.3.2.5.1
The general guideline is that protection can only be added, not removed. All valid transitions between
Flash protection scenarios are specified in
FPROT register will be ignored and the FPROT register will remain unchanged. The contents of the
FPROT register reflect the active protection scenario.
512
Scenario
Scenario
0xFFFF
0xFFFF
Flash Protection Restrictions
Protection
Scenario
From
0
1
2
3
4
5
FPHDIS = 1
FPLDIS = 1
7
3
Table 18-12. Flash Protection Scenario Transitions
0
X
Figure 18-9. Flash Protection Scenarios
MC9S12C-Family / MC9S12GC-Family
X
X
1
FPHDIS = 1
FPLDIS = 0
Table
6
2
X
X
X
2
Rev 01.23
18-12. Any attempt to write an invalid scenario to the
To Protection Scenario
Protected Flash
X
X
X
X
X
X
3
FPHDIS = 0
FPLDIS = 1
5
1
X
X
4
(1)
X
5
FPHDIS = 0
FPLDIS = 0
6
4
0
Freescale Semiconductor
7