C8051F960-B-GM Datasheet, PDF (274/492 Pages) Silicon Laboratories – Ultra Low Power 128K, LCD MCU Family

C8051F96x
SFR Definition 20.2. DC0CF: DC-DC Converter Configuration
Bit
7
6
5
4
3
2
1
0
Name BYPASS
VSEL[3:0]
OSCDIS
SWSEL[1:0]
Type
R
R/W
R/W
Reset
0
0
0
0
1
0
1
1
SFR Page = 0x0; SFR Address = 0x96
Bit
Name
Function
7
BYPASS _{DC-DC Converter Bypass Switch Active Indicator.}
0: The bypass switch is open.
1: The bypass switch is closed (VDC is connected to VBATDC).
6:3 VSEL[3:0] _{DC-DC Converter Output Voltage Select.}
Specifies the target output voltage.
0000: Target output voltage is 1.8 V.
0001: Target output voltage is 1.9 V.
0010: Target output voltage is 2.0 V.
0011: Target output voltage is 2.1 V.
0100: Target output voltage is 2.2 V.
0101: Target output voltage is 2.3 V.
0110: Target output voltage is 2.4 V.
0111: Target output voltage is 2.5 V.
1000: Target output voltage is 2.6 V.
1001: Target output voltage is 2.7 V.
1010: Target output voltage is 2.8 V.
1011: Target output voltage is 2.9 V.
1100: Target output voltage is 3.0 V.
1101: Target output voltage is 3.1 V.
1110: Target output voltage is 3.3 V.
1111: Target output voltage is 3.5 V.
2 VSEL[2:0] _{DC-DC Converter Local Oscillator Disabled.}
0: The local oscillator inside the dc-dc converter is enabled.
1: The local oscillator inside the dc-dc converter is disabled.
1:0 SWSEL[1:0] _{DC-DC Converter Power Switch Select.}
Selects the size of the power switches (M1, M2). Using smaller switches will resut
in higher efficiency at low supply currents.
00: Minimum switch size, optimized for load currents smaller than 5 mA.
01: Reserved.
10: Reserved.
11: Maximum switch size, optimized for load currents greater than 5 mA.
274
Rev. 1.0