UPSD3254 STMICROELECTRONICS [STMicroelectronics], UPSD3254 Datasheet - Page 74

• Manufacturer Part Number: UPSD3254
• Description: Flash Programmable System Devices with 8032 Microcontroller Core
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV
Figure 36. Four-Channel 8-bit PWM Block Diagram
74/175
f
PWMCON bit5 (PWME)
OSC
/2
CPU rd/wr
8
load
16-bit Prescaler
16-bit Prescaler
(B2h,B1h)
Register
Counter
CPU rd/wr
DATA BUS
clock
Comparators Registers
8-bit PWM0-PWM3
8-bit PWM0-PWM3
8-bit PWM0-PWM3
Data Registers
Comparators
8-bit Counter
8
Overflow
x 4
x 4
x 4
load
4
PWMCON bit7 (PWML)
Port4.3
Port4.4
Port4.5
Port4.6
AI06647