Maxim Integrated MAX32660 - Table 4-14: Reset 0 Register

MAX32660 User Guide
Maxim Integrated Page 34 of 195
System Control Register
GCR_SCON
[0x0000]
Bits
Name
Access
Reset
Description
14
swd_dis
R/W
See
Description
Serial Wire Debug Disable
0: JTAG SWD enabled.
1: JTAG SWD disabled.
Note: If the Arm ICE is unlocked (GCR_SYS_ST.icelock=0), the POR reset value for this
bit is 0. If the Arm ICE is locked (GCR_SYS_ST.icelock=1), the POR reset value for this
bit is 1 and is not writable.
13:7
-
RO
-
Reserved for Future Use
Do not modify this field.
6
icc0_flush
R/W1O
0
Instruction Cache Controller Flush
Write 1 to flush the internal flash cache. This bit is cleared by hardware when the
flush is complete.
0: Flush not in process.
1: Write 1 to flush the code cache.
5
fpu_dis
R/W
0
Floating Point Unit (FPU) Disable
Set this field to 1 to disable the Cortex-M4 Floating Point Unit.
0: FPU enabled.
1: FPU disabled.
4
flash_page_flip
RO
0
Flash Page Flip Flag
Flips the bottom and top halves of the internal flash memory. This bit is controlled by
hardware. Firmware should not change the state of this bit during normal operation.
Any change to this bit flushes the instruction cache and the data cache
0: Physical layout matches logical layout
1: Top and Bottom halves flipped.
3:0
-
R/W
-
Reserved for Future Use
Do not modify this field.
Table 4-14: Reset 0 Register
Reset 0 Register
GCR_RST0
[0x0004]
Bits
Name
Access
Reset
Description
31
system
R/W1O
0
System Reset
Write 1 to perform a System Reset of the MAX32660. When set to 1, the system reset resets
everything on the device except the AoD registers and the RAM retention. All other
registers, peripherals, the CPU core and the watchdog timer are reset. This field is cleared
by hardware when the reset is complete.
0: Reset complete.
1: Write 1 to perform a System Reset.
Refer to the Device Resets section for additional information.
30
periph
R/W1O
0
System Peripheral Reset
Write 1 to perform a Peripheral Reset. All peripherals are reset except for the GPIO port pin
configuration and Watchdog Timer.
0: Reset complete.
1: Write 1 to perform the Peripheral reset.
Refer to the Device Resets section for additional information.