M38B53M4-059FP datasheet(100/355 Pages) MITSUBISHI

100 / 355 page

2-12

38B5 Group User’s Manual

APPLICATION

2.2 Timer

Fig. 2.2.5 Structure of Timer 12 mode register

Timer 12 mode register

b7 b6 b5 b4 b3 b2 b1 b0

Timer 12 mode register

(T12M: address 2816)

0: Count operation

1: Count stop

Name

Functions

At reset R W

0: Count operation

1: Count stop

0 0: f(XIN)/8 or f(XCIN)/16

0 1: f(XCIN)

1 0: f(XIN)/16 or f(XCIN)/32

1 1: f(XIN)/64 or f(XCIN)/128

0: I/O port

1: Timer 1 output

Timer 1 count stop

bit

Timer 2 count stop

bit

Timer 2 count

source selection

bits

Timer 1 output

selection bit (P45)

Timer 1 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: Timer 1 underflow

0 1: f(XCIN)

1 0: External count input

CNTR0

1 1: Not available

Fig. 2.2.6 Structure of Timer 34 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)/8 or f(XCIN)/16

0 1: Timer 2 underflow

1 0: f(XIN)/16 or f(XCIN)/32

1 1: f(XIN)/64 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 (P46)

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)/8 or f(XCIN)/16

0 1: Timer 3 underflow

1 0: External count input

CNTR1 (Note)

1 1: Not available

Note: In the mask option type P, CNTR1 function cannot be used.

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