3886 datasheet(141/380 Pages) RENESAS

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2-24

3886 Group User’s Manual

APPLICATION

2.3 Timer

This paragraph explains the registers setting method and the notes relevant to the timers.

2.3.1 Memory map

Fig. 2.3.1 Memory map of registers relevant to timers

2.3.2 Relevant registers

Fig. 2.3.2 Structure of Prescaler 12, Prescaler X, Prescaler Y

002016

002116

002216

002316

002416

002516

002616

Prescaler 12 (PRE12)

Timer 1 (T1)

Timer 2 (T2)

Timer XY mode register (TM)

Prescaler X (PREX)

Timer X (TX)

003C16

003E16

Interrupt control register 1 (ICON1)

002716

Timer Y (TY)

Prescaler Y (PREY)

003D16

003F16

Interrupt request register 1 (IREQ1)

Interrupt request register 2 (IREQ2)

Interrupt control register 2 (ICON2)

002F16

Port control register 2 (PCTL2)

Prescaler 12, Prescaler X, Prescaler Y

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Name

Prescaler 12 (PRE12) [Address : 20 16]

Prescaler X (PREX) [Address : 24 16]

Prescaler Y (PREY) [Address : 26 16]

•Set a count value of each prescaler.

•The value set in this register is written to both each prescaler

and the corresponding prescaler latch at the same time.

•When this register is read out, the count value of the corres-

ponding prescaler is read out.

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