C8051F52X_12 Datasheet, PDF (75/221 Pages) Silicon Laboratories – 8/4/2 kB ISP Flash MCU Family

C8051F52x/F53x
SFR Definition 6.1. REG0CN: Regulator Control
R/W
R/W
R
R/W
R
R
REGDIS Reserved — REG0MD —
—
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit7: REGDIS: Voltage Regulator Disable Bit.
This bit disables/enables the Voltage Regulator.
0: Voltage Regulator Enabled.
1: Voltage Regulator Disabled.
Bit6: RESERVED. Read = 1b. Must write 1b.
Bit5: UNUSED. Read = 0b. Write = don’t care.
Bit4: REG0MD: Voltage Regulator Mode Select Bit.
This bit selects the Voltage Regulator output voltage.
0: Voltage Regulator output is 2.1 V.
1: Voltage Regulator output is 2.6 V (default).
Bits3–1: UNUSED. Read = 000b. Write = don’t care.
Bit0: DROPOUT: Voltage Regulator Dropout Indicator Bit.
0: Voltage Regulator is not in dropout.
1: Voltage Regulator is in or near dropout.
R
R
Reset Value
— DROPOUT 01010000
Bit1
Bit0
SFR Address: 0xC9
Rev. 1.4
75