Lvd Reset Voltage Selection Id Register (Lvdr) - Fujitsu 8FX Hardware Manual

MB95630H Series
16.5.1

LVD Reset Voltage Selection ID Register (LVDR)

The LVD reset voltage selection ID register (LVDR) selects the reset threshold
voltage.
■ Register Configuration
bit 7
Field LVRS7
Attribute R/W
Initial value 0
■ Register Functions
[bit7:0] LVRS[7:0]: LVD reset voltage select bits
These bits select the reset threshold voltage with an 8-bit code. They are cleared upon a power-on reset.
bit7:0
Writing "01010101"
Writing "01011010"
Writing "10101010"
Writing a value other than the above
Note:
The reset of the low-voltage detection reset circuit has no effect on the reset threshold
voltage settings as the reset cannot clear this register.
MN702-00009-2v0-E
CHAPTER 16 LOW-VOLTAGE DETECTION RESET CIRCUIT
6 5
LVRS6 LVRS5
R/W R/W
0 0
Detection voltage (typical value)
FUJITSU SEMICONDUCTOR LIMITED
4 3
LVRS4 LVRS3
R/W R/W
0 0
Reset threshold voltage
2.7 V
3 V
3.2 V
2.6 V
16.5 Register
2 1
LVRS2 LVRS1
R/W R/W
0 0
Release voltage (typical value)
0
LVRS0
R/W
0
2.8 V
3.1 V
3.3 V
2.7 V
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