upd78f0124m6gba1-8et Renesas Electronics Corporation., upd78f0124m6gba1-8et Datasheet - Page 182

• Manufacturer Part Number: upd78f0124m6gba1-8et
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(1) PWM output basic operation
182
Note 8-bit timer/event counter 50: P17, PM17
Remark n = 0, 1
<1> Set each register.
<2> The count operation starts when TCE5n = 1.
<1> PWM output (output from TO5n) outputs an inactive level until an overflow occurs.
<2> When an overflow occurs, the active level is output.
<3> After the CR5n matches the count value, the inactive level is output until an overflow occurs again.
<4> Operations <2> and <3> are repeated until the count operation stops.
<5> When the count operation is stopped with TCE5n = 0, PWM output becomes inactive.
Setting
PWM output operation
8-bit timer/event counter 51: P33, PM33
• Set the port output latch (P17 or P33)
• TCL5n: Select the count clock.
• CR5n:
• TMC5n: Stop the count operation, select PWM mode.
Set TCE5n to 0 to stop the count operation.
The active level is output until CR5n matches the count value of 8-bit timer counter 5n (TM5n).
For details of timing, see Figures 7-14 and 7-15.
The cycle, active-level width, and duty are as follows.
• Cycle = 2
• Active-level width = Nt
• Duty = N/2
(N = 00H to FFH)
8
t
Compare value
The timer output F/F is not changed.
8
Timer output enabled
(TMC5n = 01000001B or 01000011B)
TMC5n1
CHAPTER 7 8-BIT TIMER/EVENT COUNTERS 50 AND 51
0
1
Active-high
Active-low
User’s Manual U16315EJ3V1UD
Note
Active Level Selection
and port mode register (PM17 or PM33)
Note
to 0.