MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 683
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MC9S12G
Manufacturer Part Number
MC9S12G
Description
Ignores external trigger. Performs one conversion sequence and stops.
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
1.MC9S12G.pdf
(1160 pages)
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21.4
21.4.1
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
21.4.2
The version ID word is stored in the IFR at address 0x0_40B6. The contents of the word are defined in
Table
21.4.3
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
21.4.4
Flash command operations are used to modify Flash memory contents.
The next sections describe:
21.4.4.1
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
•
•
•
•
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
21-25).
21-24.
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.
21-5.
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.1.01
Table 21-24. IFR Version ID Fields
Reserved
[15:4]
Table
21-6.
VERNUM
[3:0]
16 KByte Flash Module (S12FTMRG16K1V1)
Table 21-8
shows recommended
683
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