ST & T UPSD3212C - Manual (Page 68)

uPSD3212A, uPSD3212C, uPSD3212CV
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Figure 36. Four-Channel 8-bit PWM Block Diagram
AI06647
8-bit PWM0-PWM3
Comparators Registers
8-bit PWM0-PWM3
Comparators
8
8
8-bit Counter
x 4
8-bit PWM0-PWM3
Data Registers
8
x 4
Port4.3
Port4.4
Port4.5
Port4.6
Overflow
clock
load
16-bit Prescaler
Register
(B2h,B1h)
16
16-bit Prescaler
Counter
f
OSC
/2
CPU rd/wr
CPU rd/wr
load
PWMCON bit5 (PWME)
PWMCON bit7 (PWML)
4
8
DATA BUS
x 4
8
8