Maxim Integrated MAXQ610 - Manual (Page 66)

4-11
MAXQ610 User’s Guide
REGISTER DESCRIPTION
PRIVF, 08h[0Bh] Privilege Flag Register (8 bits)
Initialization This register is cleared to 00h on all forms of reset .
Access Unrestricted direct read/write .
PRIVF.3 to PRIVF.0 Reserved . All reads return 0 .
PRIVF.4 (PULRF) Protected User Loader Read Interrupt Flag. The interrupt flag is set to 1 if code
attempts/requests to read user loader memory when PULR = 0 . Once set, this flag can
only be cleared by software or by reset .
PRIVF.5 (PULWF) Protected User Loader Write Interrupt Flag. The interrupt flag is set to 1 if code
attempts/requests to write user loader memory when PULW = 0 . Once set, this flag can
only be cleared by software or by reset .
PRIVF.6 (PSYRF) Protected System Read Interrupt Flag. The interrupt flag is set to 1 if code attempts/
requests to read system memory when PSYR = 0 . Once set, this flag can only be cleared
by software or by reset .
PRIVF.7 (PSYWF) Protected System Write Interrupt Flag. The interrupt flag is set to 1 if code attempts/
requests to write system memory when PSYW = 0 . Once set, this flag can only be cleared
by software or by reset .
ULDR, 08h[0Ch] User Loader Starting Page Address (16 bits)
Initialization This register is reset to the first page address past the available flash program memory on
all resets . On a part with 64KB of program memory with 512-byte pages, this register is
reset to 0080h .
Access This register can only be modified when PRIV = HIGH . Unrestricted read access .
ULDR.8 to ULDR.0 User Loader Starting Page Address. These bits define the starting page address of the
user loader memory area .
ULDR.15 to ULDR.9 Reserved . Reads return 0 .
UAPP, 08h[0Dh] User Application Starting Page Address (16 bits)
Initialization This register is reset to the first page address past the available flash program memory on
all resets . On a part with 64KB of program memory with 512-byte pages, this register is
reset to 0080h .
Access This register can only be modified when PRIV R MEDIUM . Unrestricted read access .
UAPP.8 to UAPP.0 User Application Starting Page Address. These bits define the starting page address of
the user application memory area .
UAPP.15 to UAPP.9 Reserved . Reads return 0 .