C8051F70X_0910 Datasheet, PDF (64/290 Pages) Silicon Laboratories – Mixed Signal ISP Flash MCU Family

C8051F70x/71x
SFR Definition 11.1. REG0CN: Voltage Regulator Control
Bit
7
6
5
4
3
2
1
0
Name ^{STOPCF BYPASS}
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
SFR Address = 0xB9; SFR Page = F
Bit Name
Function
7 STOPCF Stop Mode Configuration.
This bit configures the regulator’s behavior when the device enters STOP mode.
0: Regulator is still active in STOP mode. Any enabled reset source will reset the
device.
1: Regulator is shut down in STOP mode. Only the RST pin or power cycle can reset
the device.
6 BYPASS Bypass Internal Regulator.
This bit places the regulator in bypass mode, allowing the core to run directly from the
V_DD supply pin.
0: Normal Mode—Regulator is on and regulates V_DD down to the core voltage.
1: Bypass Mode—Regulator is in bypass mode, and the microcontroller core operates
directly from the V_DD supply voltage.
IMPORTANT: Bypass mode is for use with an external regulator as the supply
voltage only. Never place the regulator in bypass mode when the V_DD supply
voltage is greater than the specifications given in Table 7.1 on page 39. Doing so
may cause permanent damage to the device.
5:0 Reserved Reserved. Must Write 000000b
64
Rev. 0.3