M32C80 Datasheet, PDF(156/352 Page) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C80 Datasheet, PDF (156/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

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M32C/80 Group

14. Timer (Timer A)

Timer Ai Mode Register (i=0 to 4) (Timer Mode)

b7 b6 b5 b4 b3 b2 b1 b0

0

000

Symbol

Address

TA0MR to TA4MR 035616, 035716, 035816, 035916, 035A16

Bit

Symbol

Bit Name

Function

TMOD0

TMOD1

Operating Mode

Select Bit

b1b0

0 0: Timer mode

After Reset

0016

RW

RW

RW

Reserved Bit

(b2)

MR1

MR2

Gate Function

Select Bit

Set to "0"

RW

b4b3

0 X: Gate function disabled(1)

RW

(TAiIN pin is a programmable I/O pin)

1 0: Timer counts only while the

TAiIN pin is held "L"

1 1: Timer counts only while the

RW

TAiIN pin is held "H"

MR3 Set to "0" in timer mode

RW

b7b6

TCK0

0 0: f1

RW

Count Source

0 1: f8

Select Bit

1 0: f2n(2)

TCK1

1 1: fC32

RW

NOTES:

1. X can be set to either "0" or "1".

2. The CNT3 to CNT0 bits in the TCSPR register select no division (n=0) or divide-by-2n (n=1 to 15).

Figure 14.8 TA0MR to TA4MR Registers

Rev. 1.00 Nov. 01, 2005 Page 137 of 330

REJ09B0271-0100

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