Realtek
RTD2120-series
Register::Port67_pin_reg
0xFF5F
Name
Bits
Read/Write Reset State Comments
Reserved
P67
7:1
--
0
R/W
0
Reserved
1
Input/output value of P6.7
Register::Port76_pin_reg
0xFF60
Name
Bits
Read/Write Reset State Comments
Reserved
P76
7:1
--
0
R/W
0
Reserved
1
Input/output value of P7.6
Register::Port77_pin_reg
0xFF61
Name
Bits
Read/Write Reset State Comments
Reserved
P77
7:1
--
0
R/W
0
Reserved
1
Input/output value of P7.7
Low Voltage Reset & Power on Reset
When the voltage level of power supply is below VLT, the low voltage reset(LVR) generates a chip
reset signal. After the power supply is above VUT(2.6V), LVR remain in reset state for 65536 X’tal
cycle(tPOR) to guarantee the chip exit reset condition.
VCC
VUT
VLT
VSS
tPOR
INTERNAL RESET
Register::LVR_control
Name
Bits
Read/Write Reset State Comments
0xFF0A
confidential
19