S912XEG384J3VA Datasheet, PDF (1229/1324 Pages) Freescale Semiconductor, Inc – MC9S12XEP100 Reference Manual Covers MC9S12XE Family

Appendix A Electrical Characteristics
A.3.1.20 Maximum CCOB Latency
The maximum time a CCOB command has to wait to be actioned due to an EEE clean up is given where
BWN = 1 if a brownout has occured otherwise BWN = 0. BWN = 1 only for the first ENEEE after reset.
t
≈
⎛
⎝
32364
⋅
-f-N-----V----M-1-----O-----P--
+
292600
⋅
f--N-----V----M---1---B----U-----S--⎠⎞
⋅
(1
+
BWN)
+ BWN ⋅ _⎝⎛350 ⋅ _f--_N----_V----1_M----_O-----_P-- + _f--_N----_V^1----1_M---0-_B--0--_U----_S--_⎠⎞
A.3.1.21 Disable EEE (FCMD=0x14)
Maximum time to disable EPROM emulation is given by
t= 300 ⋅ _{f--N-----V----M---1---B----U-----S--}
A.3.1.22 EEE Query (FCMD=0x15)
Maximum time for the EEE query command is given by
t= 300 ⋅ _{f--N-----V----M---1---B----U-----S--}
A.3.1.23 Partition D-Flash (FCMD=0x20)
The maximum time for partitioning the D-flash (ERPART=16, DFPART=0) is given by
t ≈ 21800 ⋅ _{f--N-----V----M1------O-----P--} + 400000 ⋅ _{f--N-----V----M---1---B----U-----S--}
Freescale Semiconductor
MC9S12XE-Family Reference Manual Rev. 1.25
1229