Cypress FM4 Series - Page 340

CHAPTER 7-3: VBAT Domain(B)
340 FM4 Peripheral Manual, Doc. No. 002-04856 Rev. *E
TYPE4-M4 products
■CCS Register
bit
7
6
5
4
3
2
1
0
Field
CCS
Attribute
R/W
Initial value
11001110
The interface circuit type for this register is type 3.
[bit7:0] CCS: Oscillation sustain current set bits
These bits set the value of current for sustaining oscillation.
■CCB Register
bit
7
6
5
4
3
2
1
0
Field
CCB
Attribute
R/W
Initial value
11001110
The interface circuit type for this register is type 1.
[bit7:0] CCB: Oscillation boost current set bits
These bits set the value of boost current at the start of oscillation.
Table 7-2 shows the relationship between the settings of the CCS/CCB Register and the modes.
Table 7-3 Relationship between Settings of CCS/CCB Register and the Modes
CCS/CCB
Mode
Remark
00000100
Low power
Load capacity it will be possible to use a smaller type of crystal
oscillator.
11001110
Standard
(Initial value)
Others
Undefined
Setting prohibited
Note:
− Please be the same setting CCS register and CCB register.