Cypress FM4 Series - Page 264

CHAPTER 7-2: VBAT Domain(A)
264 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
Details of Backup Registers
 List of backup registers
bit
31 - 24
23 - 16
15 - 8
7 - 0
Initial Value
Attribute
BREG03
BREG02
BREG01
BREG00
0x00000000
R/W
BREG07
BREG06
BREG05
BREG04
0x00000000
R/W
BREG0B
BREG0A
BREG09
BREG08
0x00000000
R/W
BREG0F
BREG0E
BREG0D
BREG0C
0x00000000
R/W
BREG13
BREG12
BREG11
BREG10
0x00000000
R/W
BREG17
BREG16
BREG15
BREG14
0x00000000
R/W
BREG1B
BREG1A
BREG19
BREG18
0x00000000
R/W
BREG1F
BREG1E
BREG1D
BREG1C
0x00000000
R/W
The interface circuit type for the above registers is type 3.
The save operation and recall operation of the backup registers are BWRITE and BREAD respectively.
The backup registers retain data with the VBAT pin power supply.
They can be accessed by byte access, halfword access and word access.