MC68HC908LB8_05 Datasheet, PDF (98/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

SEL[2:0]
HRPCLK
STEP[4:0]
DIVIDER
HRPTBH HRPTBL
COMPARE INCREMENT
COMPARE
5-BIT
1
COUNTER
0
COMPARE
16-BIT COUNTER
RESET
S
Q
R
MODULUS
CLK
SRC
DITHERING TIMEBASE
DC[10:0]
+1
01
10
DUTY 1 DUTY 2
/2
/2
10
DUTY CYCLE REGISTER
UP COUNTER
PERIOD REGISTER
10
PERIOD 1
PERIOD 2
+1
01
HRPMODE
TO DEADTIME
GENERATORS
CLKSEL = 0, clock from dual frequency generator
CLKSEL = 1, clock from 16-bit timebase counter
P[10:0]
DUAL FREQUENCY GENERATOR
Figure 10-6. Dithering Controller and Dual Frequency Generator Block