...the world's most energy friendly microcontrollers
Bit
Name
Reset
Access
Description
31:17
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
16
PERIOD
0
RW
Sets the timebase period
Decides whether TIMEBASE specifies the number of AUX cycles in 1 us or 5 us
Value
0
1
Mode
1US
5US
Description
TIMEBASE period is 1 us
TIMEBASE period is 5 us
15:6
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
5:0
BASE
0x10
RW
Timebase used by MSC to time flash writes and erases
Should be set to the number of AUX clock cycles-1 in 1.1 us if PERIOD is cleared, or the number of AUX clock cycles-1 in 5.5 us if
PERIOD is set. The value should be rounded up to make sure the number of clock cycles generate at least the specified time. The
resetvalue of the timebase matches a 14 MHz AUXHFRCO, which is the default frequency of the AUXHFRCO.
7.5.17 MSC_MASSLOCK - Mass Erase Lock Register
Offset
0x054
Reset
Access
Name
Bit Position
Bit
Name
Reset
Access
Description
31:16
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
15:0
LOCKKEY
0x0001
RW
Mass Erase Lock
Write any other value than the unlock code to lock access the the ERASEMAIN0 and ERASEMAIN1 commands. Write the unlock
code 631A to enable access. When reading the register, bit 0 is set when the lock is enabled. Locked by default
Mode
Read Operation
UNLOCKED
LOCKED
Write Operation
LOCK
UNLOCK
Value
0
1
0
0x631A
Description
Mass erase unlocked
Mass erase locked
Lock mass erase
Unlock mass erase
2012-04-24 - Giant Gecko Family - d0053_Rev0.96
48
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