CDR3 Flash (UC3F) EEPROM
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
21-33
NOTE
The values of the EPEE and B0EPEE inputs are latched with the assertion
of EHV to determine the array protection state for the clear censor
operation. It is assumed that the EPEE and B0EPEE inputs are setup prior
to the assertion of EHV. If EPEE and B0EPEE are not enabled for erase, the
CENSOR[0:1] bits may not be cleared.
5. Read the UC3FCTL register until HVS = 0.
6. Read the UC3FCTL register. Confirm PEGOOD = 1.
7. Write EHV = 0 in the UC3FCTL register.
8. Write SES = 0 and CSC = 0.
21.3.11.4 Switching The UC3F EEPROM Censorship
There are three states of censorship that CENSOR[0:1] can select. These are—cleared censorship, no
censorship (two states) and information censorship. These three states, state values, transitions, and state
of censorship are shown in
.
Figure 21-11. Censorship States and Transitions
CENSOR[0:1] = 10
CENSOR[0:1] = 00
T1
T2
T3
No Censorship
Cleared Censorship
Information Censorship
CENSOR[0:1] = 11
Data
Data
Data
Data
Data
Data
Data
Unknown
T3
T4
T3
CENSOR[0:1] = 01
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...