
PWM/BRM GENERATOR (Cont’d)
Figure 56. Simplified Filtered Voltage Output Schematic with BRM Added
=
=
VDD
PWMOUT
0V
VDD
OUTPUT
VOLTAGE
ST7265x
BRM = 1
BRM = 0
0V
TCPU
BRM
EXTENDED PULSE
Figure 57. Graphical Representation of 4-Bit BRM Added Pulse Positions
BRM VALUE
PWM Pulse Number (0-15)
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
0001 bit0=1
0010 bit1=1
0100 bit2=1
1000 bit3=1
Examples
0110
1111
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