MC9S08AC16_08 Datasheet, PDF (48/344 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Chapter 4 Memory
Table 4-3. High-Page Register Summary (Sheet 3 of 3)
Address Register Name Bit 7
6
0x1843 Reserved
—
—
0x1844 PTBPE
R
R
0x1845 PTBSE
R
R
0x1846 PTBDS
R
R
0x1847 Reserved
—
—
0x1848 PTCPE
0
R
0x1849 PTCSE
0
R
0x184A PTCDS
0
R
0x184B Reserved
—
—
0x184C PTDPE
R
R
0x184D PTDSE
R
R
0x184E PTDDS
R
R
0x184F Reserved
—
—
0x1850 PTEPE
PTEPE7 PTEPE6
0x1851 PTESE
PTESE7 PTESE6
0x1852 PTEDS
PTEDS7 PTEDS6
0x1853 Reserved
—
—
0x1854 PTFPE
R
PTFPE6
0x1855 PTFSE
R
PTFSE6
0x1856 PTFDS
R
PTFDS6
0x1857 Reserved
—
—
0x1858 PTGPE
0
PTGPE6
0x1859 PTGSE
0
PTGSE6
0x185A PTGDS
0
PTGDS6
0x185B–
0x185F
Reserved
—
—
—
—
1 _{This reserved bit must always be written to 0.}
2 _{MC9S08AC16 and MC9S08AC8 devices only.}
5
—
R
R
R
—
PTCPE5
PTCSE5
PTCDS5
—
R
R
R
—
PTEPE5
PTESE5
PTEDS5
—
PTFPE5
PTFSE5
PTFDS5
—
PTGPE5
PTGSE5
PTGDS5
—
—
4
—
R
R
R
—
PTCPE4
PTCSE4
PTCDS4
—
R
R
R
—
PTEPE4
PTESE4
PTEDS4
—
PTFPE4
PTFSE4
PTFDS4
—
PTGPE4
PTGSE4
PTGDS4
—
—
3
—
PTBPE3
PTBSE3
PTBDS3
—
PTCPE3
PTCSE3
PTCDS3
—
PTDPE3
PTDSE3
PTDDS3
—
PTEPE3
PTESE3
PTEDS3
—
R
R
R
—
PTGPE3
PTGSE3
PTGDS3
—
—
2
—
PTBPE2
PTBSE2
PTBDS2
—
PTCPE2
PTCSE2
PTCDS2
—
PTDPE2
PTDSE2
PTDDS2
—
PTEPE2
PTESE2
PTEDS2
—
R
R
R
—
PTGPE2
PTGSE2
PTGDS2
—
—
1
—
PTBPE1
PTBSE1
PTBDS1
—
PTCPE1
PTCSE1
PTCDS1
—
PTDPE1
PTDSE1
PTDDS1
—
PTEPE1
PTESE1
PTEDS1
—
PTFPE1
PTFSE1
PTFDS1
—
PTGPE1
PTGSE1
PTGDS1
—
—
Bit 0
—
PTBPE0
PTBSE0
PTBDS0
—
PTCPE0
PTCSE0
PTCDS0
—
PTDPE0
PTDSE0
PTDDS0
—
PTEPE0
PTESE0
PTEDS0
—
PTFPE0
PTFSE0
PTFDS0
—
PTGPE0
PTGSE0
PTGDS0
—
—
Nonvolatile FLASH registers, shown in Table 4-4, are located in the FLASH memory. These registers
include an 8-byte backdoor key which optionally can be used to gain access to secure memory resources.
During reset events, the contents of NVPROT and NVOPT in the nonvolatile register area of the FLASH
memory are transferred into corresponding FPROT and FOPT working registers in the high-page registers
to control security and block protection options.
MC9S08AC16 Series Data Sheet, Rev. 6
48
Freescale Semiconductor