M16C30P_07 Datasheet, PDF(127/317 Page) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

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M16C30P_07 Datasheet, PDF (127/317 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/30 SERIES

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M16C/30P Group

14. Timers

Timer Bi Mode Register (i=0 to 2)

b7 b6 b5 b4 b3 b2 b1 b0

Symbol

Address

TB0MR to TB2MR

039Bh to 039Dh

Bit Symbol

Bit Name

Operation Mode Select Bit

TMOD0

TMOD1

After Reset

00XX0000b

Function

b1 b0

0 0 : Timer mode

0 1 : Event counter mode

1 0 : Pulse period measurement mode,

pulse w idth measurement mode

1 1 : Do not set to this value

MR0 â

MR1

Function varies w ith each operation mode

MR2

MR3

TCK0

TCK1

NOTES :

1. Timer B0.

2. Timer B1, Timer B2.

Count Source Select Bit

Function varies w ith each operation mode

RW

RW

RW

RW

RW

RW(1)

â(2)

RO

RW

RW

Timer Bi Register (i=0 to 2)(1)

(b15)

(b8)

b7

b0 b7

b0

Mode

Symbol

TB0

TB1

TB2

Address

0391h, 0390h

0393h, 0392h

0395h, 0394h

Function

After Reset

Indeterminate

Indeterminate

Indeterminate

Setting Range RW

Timer Mode

Divide the count source by n + 1 0000h to FFFFh

w here n = set value

RW

Event Counter Mode

Divide the count source by n + 1 0000h to FFFFh

w here n = set value (2)

RW

Pulse Period Measurement Mode, Measures a pulse period or w idth â

Pulse Width Measurement Mode

RO

NOTES :

1. The register must be accessed in 16-bit units.

2. The timer counts pulses from an external device or overflow s or underflow s of other timers.

Figure 14.16 TBiMR and TBi Registers

Rev.1.22 Mar 29, 2007 Page 111 of 291

REJ09B0179-0122

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