Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual Rev. 1.19
Freescale Semiconductor
1229
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.
A.3.1.21
Disable EEE (FCMD=0x14)
Maximum time to disable EPROM emulation is given by
A.3.1.22
EEE Query (FCMD=0x15)
Maximum time for the EEE query command is given by
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
32364
1
f
NVMOP
-------------------------
292600
1
f
NVMBUS
-----------------------------
⋅
+
⋅
⎝
⎠
⎛
⎞
1
BWN
+
(
)
BWN
+
350
1
f
NVMOP
---------------------
1100
f
NVMBUS
-------------------------
+
⋅
⎝
⎠
⎛
⎞
⋅
⋅
≈
t
300
1
f
NVMBUS
-----------------------------
⋅
=
t
300
1
f
NVMBUS
-----------------------------
⋅
=
t
21800
1
f
NVMOP
-------------------------
400000
1
f
NVMBUS
-----------------------------
⋅
+
⋅
≈
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