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Flash Memory
MPC5566 Microcontroller Reference Manual, Rev. 2
13-36
Freescale Semiconductor
13.4.2.6.3
FLASH_BIUAPR Modification
Censorship logic prevents modification of the access protection register (FLASH_BIUAPR) bit fields
associated with all masters except the core according to the logic presented in
.
13.4.2.6.4
External Boot Default
The SIU latches the boot default value in the SIU_RSR BOOTCFG[0:1] bits if and only if RSTCFG is
negated. Censorship logic sets the boot default value before the SIU latches the value to
external-with-external-master access disabled (EXTM = 0) if the lower half of the censorship control word
equals 0xFFFF or 0x0000. Otherwise, censorship logic sets the boot default value to internal flash.
13.4.3
Flash Memory Array: Stop Mode
Stop mode is entered by setting the FLASH_MCR[STOP] bit. The FLASH_MCR[STOP] bit cannot be
written when FLASH_MCR[PGM] = 1 or FLASH_MCR[ERS] = 1. In stop mode all DC current sources
in the flash module are disabled. Stop mode is exited by clearing the FLASH_MCR[STOP] bit.
Table 13-18. PFBAPR Modification Logic
BOOTCFG
1
1
BOOTCFG[0:1] bits are located in the SIU_RSR.
Censorship Control Word
EXTM
2
2
EXTM bit is located in the EBI_MCR.
PFBAPR Bitfields
Writable
[0]
[1]
Upper Half
Lower Half
0
0
0x55AA
0xXXXX
0
Yes
0
0
!0x55AA
0xXXXX
0
Yes
1
0
0x55AA
0xXXXX
0
Yes
1
0
!0x55AA
0xXXXX
0
Yes
1
1
0x55AA
0xXXXX
0
Yes
1
1
!0x55AA
0xXXXX
0
Yes
0
1
0xXXXX
0x55AA
0
Yes
0
1
0xXXXX
!0x55AA
0
Yes
0
0
0x55AA
0xXXXX
1
Yes
0
0
!0x55AA
0xXXXX
1
No
1
0
0x55AA
0xXXXX
1
Yes
1
0
!0x55AA
0xXXXX
1
No
1
1
0x55AA
0xXXXX
1
Yes
1
1
!0x55AA
0xXXXX
1
No
0
1
0xXXXX
0x55AA
1
No
0
1
0xXXXX
!0x55AA
1
No
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...