Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 44 (10x10) 8-Bit 40 MHz I/O number 34

Chapter 4 Memory

MC9S08AW60 Data Sheet, Rev 2

48 Freescale Semiconductor

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.

$1846 PTBDS

PTBDS7 PTBDS6 PTBDS5 PTBDS4 PTBDS3 PTBDS2 PTBDS1 PTBDS0

$1847 Reserved

— — — — — — — —

$1848 PTCPE

0 PTCPE6 PTCPE5 PTCPE4 PTCPE3 PTCPE2 PTCPE1 PTCPE0

$1849 PTCSE

0 PTCSE6 PTCSE5 PTCSE4 PTCSE3 PTCSE2 PTCSE1 PTCSE0

$184A PTCDS

0 PTCDS6 PTCDS5 PTCDS4 PTCDS3 PTCDS2 PTCDS1 PTCDS0

$184B Reserved

— — — — — — — —

$184C PTDPE

PTDPE7 PTDPE6 PTDPE5 PTDPE4 PTDPE3 PTDPE2 PTDPE1 PTDPE0

$184D PTDSE

PTDSE7 PTDSE6 PTDSE5 PTDSE4 PTDSE3 PTDSE2 PTDSE1 PTDSE0

$184E PTDDS

PTDDS7 PTDDS6 PTDDS5 PTDDS4 PTDDS3 PTDDS2 PTDDS1 PTDDS0

$184F Reserved

— — — — — — — —

$1850 PTEPE

PTEPE7 PTEPE6 PTEPE5 PTEPE4 PTEPE3 PTEPE2 PTEPE1 PTEPE0

$1851 PTESE

PTESE7 PTESE6 PTESE5 PTESE4 PTESE3 PTESE2 PTESE1 PTESE0

$1852 PTEDS

PTEDS7 PTEDS6 PTEDS5 PTEDS4 PTEDS3 PTEDS2 PTEDS1 PTEDS0

$1853 Reserved

— — — — — — — —

$1854 PTFPE

PTFPE7 PTFPE6 PTFPE5 PTFPE4 PTFPE3 PTFPE2 PTFPE1 PTFPE0

$1855 PTFSE

PTFSE7 PTFSE6 PTFSE5 PTFSE4 PTFSE3 PTFSE2 PTFSE1 PTFSE0

$1856 PTFDS

PTFDS7 PTFDS6 PTFDS5 PTFDS4 PTFDS3 PTFDS2 PTFDS1 PTFDS0

$1857 Reserved

— — — — — — — —

$1858 PTGPE

0 PTGPE6 PTGPE5 PTGPE4 PTGPE3 PTGPE2 PTGPE1 PTGPE0

$1859 PTGSE

0 PTGSE6 PTGSE5 PTGSE4 PTGSE3 PTGSE2 PTGSE1 PTGSE0

$185A PTGDS

0 PTGDS6 PTGDS5 PTGDS4 PTGDS3 PTGDS2 PTGDS1 PTGDS0

$185B–

$185F

Reserved

—

This reserved bit must always be written to 0.

Table 4-3. High-Page Register Summary (Sheet 2 of 2)

Address Register Name Bit 7 654321Bit 0