S12CPUV2 Motorola, S12CPUV2 Datasheet - Page 111
S12CPUV2
Manufacturer Part Number
S12CPUV2
Description
MC9S12DT128 Device User Guide V02.09
Manufacturer
Motorola
Datasheet
1.S12CPUV2.pdf
(138 pages)
- Current page: 111 of 138
- Download datasheet (3Mb)
A.3 NVM, Flash and EEPROM
A.3.1 NVM timing
The time base for all NVM program or erase operations is derived from the oscillator. A minimum
oscillator frequency f
do not have any means to monitor the frequency and will not prevent program or erase operation at
frequencies above or below the specified minimum. Attempting to program or erase the NVM modules at
a lower frequency a full program or erase transition is not assured.
The Flash and EEPROM program and erase operations are timed using a clock derived from the oscillator
using the FCLKDIV and ECLKDIV registers respectively. The frequency of this clock must be set within
the limits specified as f
The minimum program and erase times shown in Table A-11 are calculated for maximum f
maximum f
A.3.1.1 Single Word Programming
The programming time for single word programming is dependant on the bus frequency as a well as on
the frequency f
A.3.1.2 Row Programming
This applies only to the Flash where up to 32 words in a row can be programmed consecutively by keeping
the command pipeline filled. The time to program a consecutive word can be calculated as:
The time to program a whole row is:
Row programming is more than 2 times faster than single word programming.
A.3.1.3 Sector Erase
Erasing a 512 byte Flash sector or a 4 byte EEPROM sector takes:
NOTE:
bus
. The maximum times are calculated for minimum f
Unless otherwise noted the abbreviation NVM (Non Volatile Memory) is used for
both Flash and EEPROM.
NVMOP
NVMOSC
and can be calculated according to the following formula.
NVMOP
is required for performing program or erase operations. The NVM modules
.
t
t
swpgm
t
bwpgm
brpgm
=
=
=
9
t
4
swpgm
---------------------
f
NVMOP
---------------------
f
NVMOP
1
1
+
31 t
+
+
MC9S12DT128 Device User Guide — V02.09
25
9
bwpgm
NVMOP
----------
f
----------
f
bus
bus
1
1
and a f
bus
of 2MHz.
NVMOP
and
111
Related parts for S12CPUV2
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Anschlusskabel Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Selbstanschliessbare Stecker Connecteurs Confectionables Field Attachable Connectors
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Selbstanschliessbare Stecker Connecteurs Confectionables Field Attachable Connectors
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Selbstanschliessbare Stecker Connecteurs Confectionables Field Attachable Connectors
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Selbstanschliessbare Stecker Connecteurs Confectionables Field Attachable Connectors
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Solutions Fibres Optiques
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Steckverbinder Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Steckverbinder Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Steckverbinder Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Steckverbinder Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Steckverbinder Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
Anschlusskabel Cables De Raccordement Connection Cables
Manufacturer:
Contrinex AG
Datasheet:
Part Number:
Description:
S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Motorola, Inc [VOLTAGE REGULATOR]
Manufacturer:
Motorola
Datasheet:
Part Number:
Description:
3N2046367254 MOTOROLA SC (XSTRS/R F)
Manufacturer:
Motorola
Datasheet: