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Boot Assist Module (BAM)
MPC5566 Microcontroller Reference Manual, Rev. 2
16-6
Freescale Semiconductor
The censorship word starts at address 0x00FF_FDE0 and contains a 16-bit censorship control field [0:15]
and a 16-bit serial boot control field [16:31]. The factory default settings are shown in
:
The BAM program reads the DISNEX bit to determine which of the following passwords to compare with
the serial password received in serial boot mode:
•
Public password (64-bit constant value of 0xFEED_FACE_CAFE_BEEF); or
•
Flash password (64-bit value in the shadow row of internal flash at address 0x00FF_FDD8).
Serial boot flash password starts at address 0x00FF_FDD8:
Address: 0x00FF_FDE0
Value: 0x55AA
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Binary value
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Hex value
5
5
A
A
Censorship control field–default value configures the device as uncensored.
Address: 0x00FF_FDE2
Value: 0x55AA
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Binary value
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
Hex value
5
5
A
A
Serial boot control field–default value reads a password from internal flash.
Figure 16-2. Censorship Word
Address: 0x00FF_FDD8
Value: 0xFEED
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Binary value
1
1
1
1
1
1
1
0
1
1
1
0
1
1
0
1
Hex value
F
E
E
D
Address: 0x00FF_FDDA
Value: 0xFACE
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Binary value
1
1
1
1
1
0
1
0
1
1
0
0
1
1
1
0
Hex
value
F A C E
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...