S6E2CC/C5/C4/C3/C2/C1 Series Flash Programming Specification, Document Number: 002-04913 Rev. *D
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1.4.10 CRTRMM (CR Trimming Data Mirror Register)
This section explains the CRTRMM.
This is the mirror register of the CR trimming data.
A value of this register can be used in the user mode and the serial writer mode.
bit
31
20
16
9
0
Field
Reserved
TTRMM
Reserved
TRMM
Attribute
R
R
Initial value
*
*
[bit31:21] Reserved bits
The read values are undefined. Ignored on write.
[bit20:16] TTRMM : Temperature CR Trimming Data Mirror Register
After reset is released, store the bit[4:0]
in an address of “0x0040_2002” (temperature trimming data) of the flash memory
area into this register.
See "CHAPTER High-Speed CR Trimming" of the "FM4 Family Peripheral Manual" for details on the CR temperature
trimming data.
Field
bit
Description
TTRMM
20:16
*: Reads out bit[4:0]
of an address of “0x0040_2002”.
[bit15:10] Reserved bits
The read values are undefined. Ignored on write.
[bit9:0] TRMM : CR Trimming Data Mirror Register
After reset is released, store the bit[9:0]
in an address of “0x0040_2000” (frequency trimming data) of the flash memory
area into this register.
See "CHAPTER High-Speed CR Trimming" of the "FM4 Family Peripheral Manual" for details on the CR Frequency
trimming data.
Field
bit
Description
TRMM
9:0
*: Reads out bit[9:0]
of an address of “0x0040_2000”.
Notes:
−
After the flash memory is lost, as this register is cleared when reset is issued in a chip, the stored CR trimming data
is lost. Therefore, before this register is cleared, save the CR trimming data stored in the register on the RAM, etc.
−
When Re-Map function is enabled, this value does not change.
