sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 573

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

16.3.2.2
The FSEC register holds all bits associated with the security of the MCU and Flash module.
All bits in the FSEC register are readable but not writable.
During the reset sequence, the FSEC register is loaded with the contents of the Flash security byte in the
Flash configuration field at global address 0x3_FF0F located in P-Flash memory (see
Freescale Semiconductor
Offset Module Base + 0x0001
Reset
W
R
Flash Security Register (FSEC)
F
7
KEYEN[1:0]
1
2
BUSCLK is Greater Than this value.
BUSCLK is Less Than or Equal to this value.
BUSCLK Frequency
MIN
10.6
11.6
12.6
13.6
14.6
15.6
1.0
1.6
2.6
3.6
4.6
5.6
6.6
7.6
8.6
9.6
= Unimplemented or Reserved
1
Table 16-7. FDIV values for various BUSCLK Frequencies
(MHz)
F
6
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Figure 16-6. Flash Security Register (FSEC)
MAX
10.6
11.6
12.6
13.6
14.6
15.6
16.6
1.6
2.6
3.6
4.6
5.6
6.6
7.6
8.6
9.6
2
F
5
FDIV[5:0]
0x0C
0x0D
0x0A
0x0B
0x0E
0x0F
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
F
4
RNV[5:2]
BUSCLK Frequency
MIN
16.6
17.6
18.6
19.6
20.6
21.6
22.6
23.6
24.6
25.6
26.6
27.6
28.6
29.6
30.6
31.6
1
F
3
(MHz)
MAX
17.6
18.6
19.6
20.6
21.6
22.6
23.6
24.6
25.6
26.6
27.6
28.6
29.6
30.6
31.6
32.6
48 KByte Flash Module (S12FTMRC48K1V1)
2
F
2
FDIV[5:0]
0x1C
0x1D
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1E
0x1F
Table
F
1
SEC[1:0]
16-3) as
F
0
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