S9S12G48F1CLC Freescale Semiconductor, S9S12G48F1CLC Datasheet - Page 794

• Manufacturer Part Number: S9S12G48F1CLC
• Description: 16-bit Microcontrollers - MCU S12Core,48k Flash,Au
• Manufacturer: Freescale Semiconductor

Specifications of S9S12G48F1CLC

• Rohs: yes
• Core: S12
• Processor Series: MC9S12G
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 48 KB
• Data Ram Size: 2 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 125 C
• Package / Case: LQFP-32
• Mounting Style: SMD/SMT

16 KByte Flash Module (S12FTMRG16K1V1)
Trying to alter data in any protected area in the P-Flash memory will result in a protection violation error
and the FPVIOL bit will be set in the FSTAT register. The block erase of a P-Flash block is not possible if
any of the P-Flash sectors contained in the same P-Flash block are protected.
Although the protection scheme is loaded from the Flash memory at global address 0x3_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.
796
FPHS[1:0]
FPOPEN
RNV[2:0]
FPHDIS
RNV[6]
Field
4–3
2–0
7
6
5
Flash Protection Operation Enable — The FPOPEN bit determines the protection function for program or
erase operations as shown in
0 When FPOPEN is clear, the FPHDIS bit defines an unprotected address range as specified by the FPHS bits
1 When FPOPEN is set, the FPHDIS bit enables protection for the address range specified by the FPHS bits
Reserved Nonvolatile Bit — The RNV bit should remain in the erased state for future enhancements.
Flash Protection Higher Address Range Disable — The FPHDIS bit determines whether there is a
protected/unprotected area in a specific region of the P-Flash memory ending with global address 0x3_FFFF.
0 Protection/Unprotection enabled
1 Protection/Unprotection disabled
Flash Protection Higher Address Size — The FPHS bits determine the size of the protected/unprotected area
in P-Flash memory as shown
Reserved Nonvolatile Bits — These RNV bits should remain in the erased state.
FPHS[1:0]
1
Table 24-19. P-Flash Protection Higher Address Range
FPOPEN
For range sizes, refer to
00
01
10
11
1
1
0
0
Table 24-18. P-Flash Protection Function
MC9S12G Family Reference Manual,
Table 24-17. FPROT Field Descriptions
FPHDIS
inTable
Table 24-18
1
0
1
0
Global Address Range
0x3_C000–0x3_FFFF
0x3_F800–0x3_FFFF
0x3_F000–0x3_FFFF
0x3_E000–0x3_FFFF
24-19. The FPHS bits can only be written to while the FPHDIS bit is set.
Table
No P-Flash Protection
Protected High Range
Full P-Flash Memory Protected
Unprotected High Range
for the P-Flash block.
24-19.
Description
Function
Rev.1.23
1
Protected Size
16 Kbytes
2 Kbytes
4 Kbytes
8 Kbytes
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