MC9S12P64VQK Freescale Semiconductor, MC9S12P64VQK Datasheet - Page 436

• Manufacturer Part Number: MC9S12P64VQK
• Description: 16-bit Microcontrollers - MCU 16 BIT 64K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12P64VQK

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 64 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to 105 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT
• Interface Type: I2C, SCI, SPI
• Program Memory Type: Flash

128 KByte Flash Module (S12FTMRC128K1V1)
phrase containing the Flash security byte during the reset sequence, all bits in the FSEC register will be
set to leave the Flash module in a secured state with backdoor key access disabled.
The security function in the Flash module is described in
13.3.2.3
The FCCOBIX register is used to index the FCCOB register for Flash memory operations.
CCOBIX bits are readable and writable while remaining bits read 0 and are not writable.
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KEYEN[1:0]
RNV[5:2}
SEC[1:0]
Offset Module Base + 0x0002
Reset
Field
7–6
5–2
1–0
W
R
Backdoor Key Security Enable Bits — The KEYEN[1:0] bits define the enabling of backdoor key access to the
Flash module as shown in
Reserved Nonvolatile Bits — The RNV bits should remain in the erased state for future enhancements.
Flash Security Bits — The SEC[1:0] bits define the security state of the MCU as shown in
Flash module is unsecured using backdoor key access, the SEC bits are forced to 10.
Flash CCOB Index Register (FCCOBIX)
0
0
7
= Unimplemented or Reserved
0
0
6
1. Preferred KEYEN state to disable backdoor key access.
1. Preferred SEC state to set MCU to secured state.
KEYEN[1:0]
Figure 13-7. FCCOB Index Register (FCCOBIX)
SEC[1:0]
00
01
10
11
00
01
10
11
S12P-Family Reference Manual, Rev. 1.13
Table
Table 13-8. FSEC Field Descriptions
Table 13-10. Flash Security States
Table 13-9. Flash KEYEN States
0
0
5
13-9.
Status of Backdoor Key Access
0
0
4
Status of Security
Description
UNSECURED
DISABLED
SECURED
DISABLED
DISABLED
SECURED
SECURED
ENABLED
Section
0
0
3
(1)
(1)
13.5.
0
2
CCOBIX[2:0]
Freescale Semiconductor
0
1
Table
13-10. If the
0
0