M38C31M7AXXXFS datasheet(78/224 Pages) RENESAS

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38C3 Group User’s Manual

APPLICATION

2-13

2.2 Timer

Fig. 2.2.6 Structure of Timer 34 mode register

Fig. 2.2.7 Structure of Timer 56 mode register

Timer 34 mode register

b7 b6 b5 b4 b3 b2 b1 b0

Timer 34 mode register

(T34M: address 2916)

0: Count operation

1: Count stop

Name

Functions

At reset R W

0: Count operation

1: Count stop

0 0: f(XIN)/16 or f(XCIN)/16

0 1: Timer 2 underflow

1 0: f(XIN)/32 or f(XCIN)/32

1 1: f(XIN)/128 or f(XCIN)/128

0: I/O port

1: Timer 3 output

Timer 3 count stop

bit

Timer 4 count stop

bit

Timer 4 count

source selection

bits

Timer 3 output

selection bit (P42)

Timer 3 count

source selection

bits

Nothing is arranged for this bit. This is a write

disabled bit. When this bit is read out, the

contents are “0”.

b3 b2

b5 b4

0 0: f(XIN)/16 or f(XCIN)/16

0 1: Timer 3 underflow

1 0: External count input

CNTR1

1 1: Not available

Timer 56 mode register

b7 b6 b5 b4 b3 b2 b1 b0

Timer 56 mode register

(T56M: address 2A16)

0: Count operation

1: Count stop

Name

Functions

At reset R W

0: Count operation

1: Count stop

0: f(XIN)/16 or f(XCIN)/16

1: Timer 4 underflow

0: Timer mode

1: PWM mode

0: I/O port

1: Timer 6 output

Timer 5 count stop

bit

Timer 6 count stop

bit

Timer 6 count

source selection

bits

Timer 6 (PWM)

output selection bit

(P52)

Timer 5 count

source selection bit

Timer 6 operation

mode selection bit

Nothing is arranged for this bit. This is a write

disabled bit. When this bit is read out, the

contents are “0”.

b5 b4

0 0: f(XIN)/16 or f(XCIN)/16

0 1: Timer 5 underflow

1 0: Timer 4 underflow

1 1: Not available

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