mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 637

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

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2
3
4
5
6
7
The setup time can be ignored for this operation.
A.3.1.4
Erasing a NVM block takes:
The setup time can be ignored for this operation.
A.3.1.5
The time it takes to perform a blank check on the Flash or EEPROM is dependant on the location of the
first non-blank word starting at relative address zero. It takes one bus cycle per word to verify plus a setup
of the command.
Freescale Semiconductor
t
Conditions are shown in
Num C
mass
t
10
Restrictions for oscillator in crystal mode apply!
Minimum Programming times are achieved under maximum NVM operating frequency f
f
Maximum Erase and Programming times are achieved under particular combinations of f
to formulae in Sections
urst Programming operations are not applicable to EEPROM
Minimum Erase times are achieved under maximum NVM operating frequency f
Minimum time, if first word in the array is not blank
Maximum time to complete check on an erased block
1
2
3
4
5
6
7
8
9
bus
check
.
D External Oscillator Clock
D Bus frequency for Programming or Erase Operations
D Operating Frequency
D Flash Burst Programming consecutive word
D Flash Burst Programming Time for 32 Words
D Blank Check Time Flash per block
D Blank Check Time EEPROM per block
P Single Word Programming Time
P Sector Erase Time
P Mass Erase Time
20000
location t
Mass Erase
Blank Check
Table A-4
---------------------
f
Section A.3.1.1, “Single Word
NVMOP
1
cyc
Rating
unless otherwise noted
+
10 t
Table A-11. NVM Timing Characteristics
MC9S12HZ256 Data Sheet, Rev. 2.05
cyc
4
Programming,” through
4
f
f
Symbol
NVMOSC
NVMBUS
f
t
t
NVMOP
t
t
t
swpgm
bwpgm
t
brpgm
check
check
mass
t
era
Section A.3.1.4, “Mass
678.4
20.4
NVMOP
100
46
20
11
11
Min
150
0.5
1
2
5
6
6
5
2
2
.
NVMOP
NVMOP
Appendix A Electrical Characteristics
Typ
and maximum bus frequency
and bus frequency f
Erase,” for guidance.
1035.5
32778
74.5
26.7
2058
133
Max
50
31
200
1
3
3
3
3
7
7
3
bus
. Refer
MHz
MHz
Unit
kHz
t
t
ms
ms
cyc
cyc
s
s
s
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