beautypg.com

4 pwm cycle setting register (pcsr) – FUJITSU MB91F109 FR30 User Manual

Page 332

background image

308

CHAPTER 14 PWM TIMER

14.4 PWM Cycle Setting Register (PCSR)

The PWM cycle setting register (PCSR) is used to set a cycle. This register has a
buffer. A borrow occurring in the counter triggers a transfer from the buffer.

PWM Cycle Setting Register (PCSR)

The configuration of the PWM cycle setting register (PCSR) is shown below.

After the cycle setting register is initialized or rewritten, write to the duty cycle setting register.

Use a 16-bit data instruction to access the cycle setting register.

PCSR

bit

15

14

13

12

11

10

9

8

Address: ch0 0000E2

H

ch1 0000EA

H

ch2 0000F2

H

ch3 0000FA

H

7

6

5

4

3

2

1

0

Attribute

Write only

Initial value

Undefined