mc9s12uf32 Freescale Semiconductor, Inc, mc9s12uf32 Datasheet - Page 110

• Manufacturer Part Number: mc9s12uf32
• Description: System Chip Guide V01.05
• Manufacturer: Freescale Semiconductor, Inc

System on a Chip Guide — 9S12UF32DGV1/D V01.05
The setup time can be ignored for this operation.
A.2.1.4 Mass Erase
Erasing a NVM block takes:
The setup time can be ignored for this operation.
A.2.1.5 Blank Check
The time it takes to perform a blank check on the Flash 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.
110
Conditions are shown in Table A-4 unless otherwise noted
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. Minimum Erase times are achieved under maximum NVM operating frequency f
5. Minimum time, if first word in the array is not blank
6. Maximum time to complete check on an erased block
1
2
3
4
5
6
7
8
9
f
Refer to formulae in Sections Section A.2.1.1 Single Word Programming- Section A.2.1.4 Mass Erase for guidance.
bus
.
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
P Single Word Programming Time
P Sector Erase Time
P Mass Erase Time
Rating
Table A-9 NVM Timing Characteristics
t
check
t
mass
t
era
location t
4000
20000
Symbol
---------------------
f
f
f
NVMOSC
NVMBUS
f
NVMOP
cyc
t
t
NVMOP
t
swpgm
bwpgm
t
t
brpgm
check
---------------------
f
mass
t
era
NVMOP
1
+
1
10 t
678.4
20.4
100
Min
46
20
11
150
0.5
NVMOP
1
cyc
2
4
5
4
2
2
NVMOP
.
NVMOP
Typ
and maximum bus frequency
Freescale Semiconductor
and bus frequency f
1035.5
32778
74.5
26.7
133
Max
60
31
200
1
3
3
3
3
6
3
bus
Unit
MHz
MHz
kHz
t
ms
ms
cyc
.
s
s
s