c8051f544 Silicon Laboratories, c8051f544 Datasheet - Page 136

• Manufacturer Part Number: c8051f544
• Description: Mixed Signal Isp Flash Mcu Family
• Manufacturer: Silicon Laboratories

C8051F54x
SFR Definition 17.1. CLKSEL: Clock Select
SFR Address = 0x8F; SFR Page = 0x0F;
136
Name
Reset
7:2
1:0
Bit
Type
Bit
CLKSL[1:0] System Clock Source Select Bits.
Unused
Name
R
7
0
Read = 000000b; Write = Don’t Care
00: SYSCLK derived from the Internal Oscillator and scaled per the IFCN bits in reg-
ister OSCICN.
01: SYSCLK derived from the External Oscillator circuit.
10: SYSCLK derived from the Clock Multiplier.
11: reserved.
R
6
0
R
5
0
Rev. 1.0
R
4
0
Function
R
3
0
R
2
0
1
0
CLKSL[1:0]
R/W
0
0