MC9S12P128 Datasheet, PDF (448/564 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

128 KByte Flash Module (S12FTMRC128K1V1)
Offset Module Base + 0x0013
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 13-25. Flash Reserved7 Register (FRSV7)
All bits in the FRSV7 register read 0 and are not writable.
13.4 Functional Description
13.4.1 Modes of Operation
The FTMRC128K1 module provides the modes of operation shown in Table 13-25. The operating mode
is determined by module-level inputs and affects the FCLKDIV, FCNFG, and DFPROT registers, Scratch
RAM writes, and the command set availability (see Table 13-27).
Table 13-25. Modes and Mode Control Inputs
Operating
Mode
Normal:
Special:
FTMRC Input
mmc_mode_ss_t2
0
1
13.4.2 IFR Version ID Word
The version ID word is stored in the IFR at address 0x0_40B6. The contents of the word are defined in
Table 13-26.
Table 13-26. IFR Version ID Fields
[15:4]
Reserved
[3:0]
VERNUM
• VERNUM: Version number. The first version is number 0b_0001 with both 0b_0000 and 0b_1111
meaning ‘none’.
13.4.3 Flash Command Operations
Flash command operations are used to modify Flash memory contents.
The next sections describe:
S12P-Family Reference Manual, Rev. 1.12
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Freescale Semiconductor