S9S12GN16F0CFT Freescale Semiconductor, S9S12GN16F0CFT Datasheet - Page 801
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S9S12GN16F0CFT
Manufacturer Part Number
S9S12GN16F0CFT
Description
16-bit Microcontrollers - MCU 16-bit16k Flash 2k RAM
Manufacturer
Freescale Semiconductor
Datasheet
1.S9S12GN16F0CFT.pdf
(1292 pages)
Specifications of S9S12GN16F0CFT
Rohs
yes
Core
S12
Processor Series
MC9S12G
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
16 KB
Data Ram Size
1024 B
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
TSSOP-20
Mounting Style
SMD/SMT
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24.4
24.4.1
The FTMRG16K1 module provides the modes of operation normal and special . The operating mode is
determined by module-level inputs and affects the FCLKDIV, FCNFG, and EEPROT registers (see
Table
24.4.2
The version ID word is stored in the IFR at address 0x0_40B6. The contents of the word are defined in
Table
24.4.3
IFR is an internal NVM resource readable by CPU , when NVMRES is active. The IFR fields are shown
in
The NVMRES global address map is shown in
24.4.4
Flash command operations are used to modify Flash memory contents.
The next sections describe:
24.4.4.1
Prior to issuing any Flash program or erase command after a reset, the user is required to write the
FCLKDIV register to divide BUSCLK down to a target FCLK of 1 MHz.
values for the FDIV field based on BUSCLK frequency.
Freescale Semiconductor
Table
•
•
•
•
24-25).
24-24.
VERNUM: Version number. The first version is number 0b_0001 with both 0b_0000 and 0b_1111
meaning ‘none’.
How to write the FCLKDIV register that is used to generate a time base (FCLK) derived from
BUSCLK for Flash program and erase command operations
The command write sequence used to set Flash command parameters and launch execution
Valid Flash commands available for execution, according to MCU functional mode and MCU
security state.
24-5.
Functional Description
Modes of Operation
IFR Version ID Word
Internal NVM resource (NVMRES)
Flash Command Operations
Writing the FCLKDIV Register
MC9S12G Family Reference Manual, Rev.1.23
Table 24-24. IFR Version ID Fields
Reserved
[15:4]
Table
24-6.
VERNUM
[3:0]
16 KByte Flash Module (S12FTMRG16K1V1)
Table 24-8
shows recommended
803
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