MC9S12XET256CAG Freescale Semiconductor, MC9S12XET256CAG Datasheet - Page 915

• 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

All possible P-Flash protection scenarios are shown in
loaded from the Flash memory at global address 0x7F_FF0C during the reset sequence, it can be changed
by the user. The P-Flash protection scheme can be used by applications requiring reprogramming in single
chip mode while providing as much protection as possible if reprogramming is not required.
Freescale Semiconductor
1. For range sizes, refer to
FPOPEN
FPHS[1:0]
FPLS[1:0]
1
1
1
1
0
0
0
0
Table 25-21. P-Flash Protection Higher Address Range
Table 25-22. P-Flash Protection Lower Address Range
00
01
10
11
00
01
10
11
MC9S12XE-Family Reference Manual , Rev. 1.23
FPHDIS
Table 25-20. P-Flash Protection Function
1
1
0
0
1
1
0
0
0x7F_E000–0x7F_FFFF
0x7F_C000–0x7F_FFFF
0x7F_F800–0x7F_FFFF
0x7F_F000–0x7F_FFFF
Global Address Range
0x7F_8000–0x7F_83FF
0x7F_8000–0x7F_87FF
0x7F_8000–0x7F_8FFF
0x7F_8000–0x7F_9FFF
Global Address Range
Table 25-21
FPLDIS
1
0
1
0
1
0
1
0
and
No P-Flash Protection
Protected Low Range
Protected High Range
Protected High and Low Ranges
Full P-Flash Memory Protected
Unprotected Low Range
Unprotected High Range
Unprotected High and Low Ranges
Table
Figure
25-22.
Chapter 25 256 KByte Flash Module (S12XFTM256K2V1)
25-14. Although the protection scheme is
Function
Protected Size
Protected Size
16 Kbytes
(1)
2 Kbytes
4 Kbytes
8 Kbytes
2 Kbytes
4 Kbytes
8 Kbytes
1 Kbyte
915