CDR3 Flash (UC3F) EEPROM
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
21-31
.
The only way CENSOR[0:1] can be changed is by setting or clearing the FLASH NVM fuses. In the
information censorship state, CENSOR[0:1] must be cleared to the cleared censorship state before
CENSOR[0:1] can be put into the no censorship state. While clearing CENSOR[0:1] the entire UC3F array
is erased. Thus the information stored in the UC3F array is made invalid while clearing CENSOR[0:1].
21.3.11.1 Setting and Clearing Censor
The value of each bit in CENSOR[0:1] is determined by the state of an NVM CAM cell. The NVM CAM
cell is not writable but instead may be set or cleared. Reading CENSOR[0:1] while setting or clearing with
the high voltage applied (CSC = 1 and EHV = 1) will return 0’s.
Table 21-10. Censorship Modes and Censorship Status
Mode
Censored
Uncensored
ACCESS
0
1
0
1
FIC
0
1
0
1
0
1
0
1
CENSOR[0:1]
00
01
or
10
11
00,
01,
or
10
11
00, 01, 10 or 11
UC3F EEPROM
Status
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10
#11
Indicates that the UC3F array cannot be accessed.
1.
ACCESS cannot be changed. FIC can be set. UC3F array cannot be accessed.
CENSOR[0:1] can be set. CENSOR[0:1] cannot be cleared.
2.
ACCESS cannot be changed. FIC can be set. UC3F array can be accessed.
CENSOR[0:1] can be set. CENSOR[0:1] can be cleared.
3.
ACCESS cannot be changed. FIC can be set. UC3F array cannot be accessed.
CENSOR[0:1] cannot be cleared unless IWS = 1.
4.
ACCESS cannot be changed. FIC cannot be changed. UC3F array cannot be
accessed. CENSOR[0:1] can be set. CENSOR[0:1] cannot be cleared unless IWS = 1.
5.
ACCESS cannot be changed. FIC cannot be changed. UC3F array cannot be
accessed. CENSOR[0:1] cannot be cleared unless IWS = 1.
6.
ACCESS can be cleared. FIC can be set. UC3F array can be accessed. CENSOR[0:1]
can be changed.
7.
ACCESS can be cleared. FIC cannot be changed. UC3F array can be accessed.
CENSOR[0:1] can be changed.
8.
ACCESS can be changed. FIC can be set. UC3F array can be accessed.
CENSOR[0:1] can be changed.
9.
ACCESS can be changed. FIC cannot be changed. UC3F array can be accessed.
CENSOR[0:1] cannot be changed unless IWS = 1.
10.
ACCESS can be changed. FIC can be set. UC3F array can be accessed.
CENSOR[0:1] can be changed.
11.
ACCESS can be changed. FIC cannot be changed. UC3F array can be accessed.
CENSOR[0:1] can be changed.
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...