ADUC7025BCPZ32-RL7 AD [Analog Devices], ADUC7025BCPZ32-RL7 Datasheet - Page 47

• Manufacturer Part Number: ADUC7025BCPZ32-RL7
• Description: Precision Analog Microcontroller 12-bit Analog I/O, ARM7TDMI MCU
• Manufacturer: AD [Analog Devices]

Reset Operation
There are four kinds of reset: external, power-on, watchdog
expiation, and software force. The RSTSTA register indicates
the source of the last reset, and RSTCLR allows clearing the
RSTSTA register. These registers can be used during a reset
exception service routine to identify the source of the reset.
If RSTSTA is null, the reset is external.
REMAP Register
Name
REMAP
1
Table 24. REMAP MMR Bit Designations
Bit
4
3
2:1
0
Depends on model.
Name
Remap
Address
0xFFFF0220
Description
Read-Only Bit. Indicates the size of the
Flash/EE memory available. If this bit is set,
only 32 kB of Flash/EE memory is available.
Read-Only Bit. Indicates the size of the SRAM
memory available. If this bit is set, only 4 kB of
SRAM is available.
Reserved.
Remap Bit. Set by user to remap the SRAM to
address 0x00000000. Cleared automatically
after reset to remap the Flash/EE memory to
address 0x00000000.
Default Value
0xXX
1
Access
R/W
Rev. A | Page 47 of 92
RSTSTA Register
Name
RSTSTA
Table 25. RSTSTA MMR Bit Designations
Bit
7:3
2
1
0
RSTCLR Register
Name
RSTCLR
Description
Reserved.
Software Reset. Set by user to force a software reset.
Cleared by setting the corresponding bit in RSTCLR.
Watchdog Timeout. Set automatically when a
watchdog timeout occurs. Cleared by setting the
corresponding bit in RSTCLR.
Power-On Reset. Set automatically when a power-on
reset occurs. Cleared by setting the corresponding bit in
RSTCLR.
ADuC7019/20/21/22/24/25/26/27
Address
0xFFFF0230
Address
0xFFFF0234
Default Value
0x01
Default Value
0x00
Access
R/W
Access
R/W