S9S12GN32F0MFT Freescale Semiconductor, S9S12GN32F0MFT Datasheet - Page 782

• Manufacturer Part Number: S9S12GN32F0MFT
• Description: 16-bit Microcontrollers - MCU 16-bit32k Flash 2k RAM
• Manufacturer: Freescale Semiconductor

Specifications of S9S12GN32F0MFT

• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 2048 B
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT

16 KByte Flash Module (S12FTMRG16K1V1)
The FPROT register, described in
accidental program or erase. Two separate memory regions, one growing downward from global address
0x3_FFFF in the Flash memory (called the higher region), and the remaining addresses in the Flash
memory, can be activated for protection. The Flash memory addresses covered by these protectable regions
are shown in the P-Flash memory map. The higher address region is mainly targeted to hold the boot loader
code since it covers the vector space. Default protection settings as well as security information that allows
the MCU to restrict access to the Flash module are stored in the Flash configuration field as described in
Table
784
1
0x3FF08-0x3_FF0F form a Flash phrase and must be programmed in a single command write sequence. Each byte in
the 0x3_FF08 - 0x3_FF0B reserved field should be programmed to 0xFF.
0x3_FF08-0x3_FF0B
0x3_FF00-0x3_FF07
24-4.
Global Address
0x3_FF0C
0x3_FF0D
0x3_FF0E
0x3_FF0F
Protection
Movable End
Protection
Fixed End
1
1
1
1
1
P-Flash START = 0x3_C000
P-Flash END = 0x3_FFFF
(Bytes)
Size
8
4
1
1
1
1
MC9S12G Family Reference Manual,
Section
Table 24-4. Flash Configuration Field
0x3_E000
0x3_F000
0x3_F800
Figure 24-2. P-Flash Memory Map
Backdoor Comparison Key
Refer to
Section 24.5.1, “Unsecuring the MCU using Backdoor Key
Reserved
P-Flash Protection byte
Refer to
EEPROM Protection byte
Refer to
Flash Nonvolatile byte
Refer to
Flash Security byte
Refer to
24.3.2.9, can be set to protect regions in the Flash memory from
Section 24.4.6.11, “Verify Backdoor Access Key
Section 24.3.2.9, “P-Flash Protection Register (FPROT)”
Section 24.3.2.10, “EEPROM Protection Register (EEPROT)”
Section 24.3.2.16, “Flash Option Register (FOPT)”
Section 24.3.2.2, “Flash Security Register (FSEC)”
.
.
Flash Protected/Unprotected Higher Region
2, 4, 8, 16 Kbytes
Description
Rev.1.23
Flash Configuration Field
16 bytes (0x3_FF00 - 0x3_FF0F)
Command,” and
Freescale Semiconductor
Access”