MC9S12A128 MOTOROLA [Motorola, Inc], MC9S12A128 Datasheet - Page 71

• Manufacturer Part Number: MC9S12A128
• Description: Microcontroller unit (MCU)
• Manufacturer: MOTOROLA [Motorola, Inc]

A.3.1.3 Sector Erase
Erasing a 512 byte Flash sector or a 4 byte EEPROM sector takes:
The setup time can be ignored for this operation.
A.3.1.4 Mass Erase
Erasing a NVM block takes:
The setup time can be ignored for this operation.
A.3.1.5 Blank Check
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.
Conditions are shown in
Num C
NOTES:
1. Restrictions for oscillator in crystal mode apply!
2. Minimum Programming times are achieved under maximum NVM operating frequency f
3. Maximum Erase and Programming times are achieved under particular combinations of f
4. urst Programming operations are not applicable to EEPROM
5. Minimum Erase times are achieved under maximum NVM operating frequency f
6. Minimum time, if first word in the array is not blank
7. Maximum time to complete check on an erased block
10
1
2
3
4
5
6
7
8
9
frequency f
Refer to formulae in
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
bus
.
A.3.1.1 Single Word
Table A-4
Rating
Table A-11 NVM Timing Characteristics
unless otherwise noted
t
check
Programming-
t
mass
t
era
location t
(4)
4
4000
20000
A.3.1.4 Mass Erase
------------------------ -
f
NVMOP
Symbol
f
cyc
f
NVMOSC
f
NVMBUS
------------------------ -
f
t
t
NVMOP
t
bwpgm
t
t
NVMOP
swpgm
t
brpgm
check
check
mass
t
era
1
+
1
10 t
678.4
cyc
20.4
100
46
20
11
11
Min
150
MC9S12A128 Device Guide — V01.01
0.5
1
for guidance.
NVMOP
(2)
(5)
(6)
(6)
(5)
(2)
(2)
.
NVMOP
NVMOP
Typ
—
—
—
—
—
—
—
—
—
—
and maximum bus
and bus frequency f
1035.5
32,778
2058
74.5
26.7
133
Max
50
31
200
(1)
(3)
(3)
(3)
(3)
(7)
(3)
(7)
Unit
MHz
MHz
bus
kHz
t
t
ms
ms
cyc
cyc
s
s
s
.
71