Rev. 1.60
76
August 20, 2019
Rev. 1.60
77
August 20, 2019
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
BS66F340/BS66F350/BS66F360/BS66F370
Touch A/D Flash MCU with LED Driver
NORMAL Mode to SLOW Mode Switching
When running in the NORMAL Mode, which uses the high speed system oscillator, and therefore
consumes more power, the system clock can switch to run in the SLOW Mode by set the
CKS2~CKS0 bits to "111" in the SCC register. This will then use the low speed system oscillator
which will consume less power. Users may decide to do this for certain operations which do not
require high performance and can subsequently reduce power consumption.
The SLOW Mode is sourced from the LXT or LIRC oscillator determined by the FSS bit in the SCC
register and therefore requires this oscillator to be stable before full mode switching occurs.
NORMAL Mode
SLOW Mode
CKS2~CKS0 = 111
SLEEP Mode
FHIDEN=0, FSIDEN=0
HALT instruction is executed
IDLE0 Mode
FHIDEN=0, FSIDEN=1
HALT instruction is executed
IDLE1 Mode
FHIDEN=1, FSIDEN=1
HALT instruction is executed
IDLE2 Mode
FHIDEN=1, FSIDEN=0
HALT instruction is executed