MC9S12XET256CAG Freescale Semiconductor, MC9S12XET256CAG Datasheet - Page 1002

• Manufacturer Part Number: MC9S12XET256CAG
• Description: MCU 16BIT 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XET256CAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, 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: 16K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: S12XE
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 26 384 KByte Flash Module (S12XFTM384K2V1)
26.4.2.13 Set User Margin Level Command
The Set User Margin Level command causes the Memory Controller to set the margin level for future read
operations of a specific P-Flash or D-Flash block.
Upon clearing CCIF to launch the Set User Margin Level command, the Memory Controller will set the
user margin level for the targeted block and then set the CCIF flag.
Valid margin level settings for the Set User Margin Level command are defined in
1002
FERSTAT
Register
FSTAT
CCOBIX[2:0]
Table 26-57. Set User Margin Level Command FCCOB Requirements
Table 26-56. Verify Backdoor Access Key Command Error Handling
000
001
MGSTAT1
MGSTAT0
EPVIOLIF
ACCERR
Error Bit
FPVIOL
1. Read margin to the erased state
2. Read margin to the programmed state
(CCOBIX=001)
Table 26-58. Valid Set User Margin Level Settings
0x0000
0x0001
0x0002
CCOB
MC9S12XE-Family Reference Manual , Rev. 1.23
Set if CCOBIX[2:0] != 100 at command launch
Set if a Load Data Field command sequence is currently active
Set if an incorrect backdoor key is supplied
Set if backdoor key access has not been enabled (KEYEN[1:0] != 10, see
Section
Set if the backdoor key has mismatched since the last reset
None
None
None
None
0x0D
26.3.2.2)
Return to Normal Level
User Margin-1 Level
User Margin-0 Level
FCCOB Parameters
Margin level setting
Level Description
Global address [22:16] to identify the
Error Condition
(1)
(2)
Flash block
Table
Freescale Semiconductor
26-58.