Datasheet

ManualsBrandsNXP SEMICONDUCTORS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller SOIC 8 8-Bit 16 MHz I/O number 4

Chapter 4 Memory Map and Register Definition

MC9S08QD4 Series MCU Data Sheet, Rev. 6

Freescale Semiconductor 35

Nonvolatile flash registers, shown in Table 4-4, are located in the flash memory. These registers include

an 8-byte backdoor key that 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.

Table 4-3. High-Page Register Summary

AddressRegister NameBit 7654321Bit 0

0x1800 SRS POR PIN COP ILOP ILAD

0LVD0

0x1801 SBDFR

0 0 0 0 0 0 0BDFR

0x1802 SOPT1 COPE COPT STOPE

0 0 0 BKGDPE RSTPE

0x1803 SOPT2 COPCLKS

0 0 0 0 0 0 0

0x1804 Reserved

— — — — — — — —

0x1805 Reserved

— — — — — — — —

0x1806 SDIDH REV3 REV2 REV1 REV0 ID11 ID10 ID9 ID8

0x1807 SDIDL ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0

0x1808 SRTISC RTIF RTIACK RTICLKS RTIE

0RTIS

0x1809 SPMSC1 LVDF LVDACK LVDIE LVDRE LVDSE LVDE

This reserved bit must always be written to 0.

BGBE

0x180A SPMSC2 LVWF LVWACK LVDV LVWV PPDF PPDACK

—PPDC

0x180B–

0x181F

Reserved

—

0x1820 FCDIV DIVLD PRDIV8 DIV

0x1821 FOPT KEYEN FNORED

0 0 0 0 SEC01 SEC00

0x1822 Reserved

— — — — — — — —

0x1823 FCNFG

0 0 KEYACC 0 0 0 0 0

0x1824 FPROT FPS FPDIS

0x1825 FSTAT FCBEF FCCF FPVIOL FACCERR

0 FBLANK 0 0

0x1826 FCMD FCMD

0x1827–

0x183F

Reserved

—

0x1840 PTAPE

0 0 PTAPE5 PTAPE4 PTAPE3 PTAPE2 PTAPE1 PTAPE0

0x1841 PTASE

0 0 PTASE5 PTASE4 PTASE3 PTASE2 PTASE1 PTASE0

0x1842 PTADS

0 0 PTADS5 PTADS4 PTADS3 PTADS2 PTADS1 PTADS0

0x1843–

0x1847

Reserved

—