MB95630H Series
MN702-00009-1v0-E
FUJITSU SEMICONDUCTOR LIMITED
583
CHAPTER 26 NON-VOLATILE REGISTER (NVR) INTERFACE
26.3 Registers
26.3.3
Main CR Clock Temperature Dependent
Adjustment Register (CRTDA)
This section describes the main CR clock temperature dependent adjustment
register (CRTDA).
■
Register Configuration
■
Register Functions
[bit7:5] Undefined bits
Their read values are always "0". Writing values to these bits has no effect on operation.
[bit4:0] CRTDA[4:0]: Main CR clock temperature dependent adjustment bits
These bits are loaded from the Flash address 0xFFBB (bit4:0) after a reset. Their initial values are determined
by the pre-load values in the NVR Flash area.
Temperature dependent adjustment maintains the accuracy of the main CR output frequency within a
temperature range. It works in combination with the coarse trimming settings in the CRTH register and the
fine trimming settings in the CRTL register. In addition, increasing the value of the CRTDA register
decreases the main CR clock frequency
See "26.4 Notes on Main CR Clock Trimming" and "26.5 Notes on Using NVR Interface" for details of
main CR clock trimming and notes on changing the main CR clock values respectively.
bit
7
6
5
4
3
2
1
0
Field
—
—
—
CRTDA4
CRTDA3
CRTDA2
CRTDA1
CRTDA0
Attribute
—
—
—
R/W
R/W
R/W
R/W
R/W
Initial value
0
0
0
X
X
X
X
X
bit4:0
Details
Writing "00000"
Highest main CR clock frequency
:
:
Writing "11111"
Lowest main CR clock frequency
Содержание MB95630H Series
Страница 2: ......
Страница 4: ......
Страница 8: ...iv ...
Страница 20: ...xvi ...
Страница 106: ...MB95630H Series 86 FUJITSU SEMICONDUCTOR LIMITED MN702 00009 1v0 E CHAPTER 6 I O PORT 6 2 Configuration and Operations ...
Страница 282: ...MB95630H Series 262 FUJITSU SEMICONDUCTOR LIMITED MN702 00009 1v0 E CHAPTER 14 LIN UART 14 8 Notes on Using LIN UART ...
Страница 642: ...MB95630H Series 622 FUJITSU SEMICONDUCTOR LIMITED MN702 00009 1v0 E APPENDIX A Instruction Overview A 5 Instruction Map ...
Страница 644: ......