MC9S12XD256VAG Freescale Semiconductor, MC9S12XD256VAG Datasheet - Page 1201

• Manufacturer Part Number: MC9S12XD256VAG
• Description: IC MCU 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XD256VAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 14K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

29.3.2.5.1
The general guideline is that Flash protection can only be added and not removed.
all valid transitions between Flash protection scenarios. Any attempt to write an invalid scenario to the
FPROT register will be ignored and the FPROT register will remain unchanged. The contents of the
FPROT register reflect the active protection scenario. See the FPHS and FPLS descriptions for additional
restrictions.
29.3.2.6
The FSTAT register defines the operational status of the module.
Freescale Semiconductor
Reset
Reset
W
W
R
R
CBEIF
CBEIF
1 Allowed transitions marked with X.
Flash Status Register (FSTAT)
Protection Scenario
1
1
7
7
Flash Protection Restrictions
From
= Unimplemented or Reserved
= Unimplemented or Reserved
0
1
2
3
4
5
6
7
Figure 29-10. Flash Status Register (FSTAT — Normal Mode)
Figure 29-11. Flash Status Register (FSTAT — Special Mode)
CCIF
CCIF
1
1
6
6
Table 29-13. Flash Protection Scenario Transitions
X
X
MC9S12XDP512 Data Sheet, Rev. 2.21
0
PVIOL
PVIOL
0
0
5
5
1
X
X
X
X
ACCERR
ACCERR
0
0
4
4
X
X
X
X
2
To Protection Scenario
3
X
X
X
X
X
X
X
X
Chapter 29 128 Kbyte Flash Module (S12XFTX128K1V1)
0
0
0
0
3
3
X
X
X
X
4
BLANK
BLANK
1
X
X
5
0
0
2
2
X
X
6
Table 29-13
FAIL
0
0
0
1
1
X
7
specifies
0
0
0
0
0
0
1203