M32CSLASH8B datasheet(167/406 Pages) RENESAS

167 / 406 page

Under development

M32C/8B Group

15. Timer A

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 150 of 385

Figure 15.10

UDF Register

b7 b6 b5 b4

Symbol

UDF

Address

0344h

After Reset

00h

Function

Bit Symbol

Bit Name

TA2P

Timer A3 up/down select bit(2)

TA4UD

TA3UD

Timer A2

two-phase pulse signal

processing function select bit(3)

Up/Down Select Register(1)

Timer A4 up/down select bit(2)

Timer A1 up/down select bit(2)

TA1UD

Timer A2 up/down select bit(2)

TA2UD

0: Decrement

1: Increment

Timer A0 up/down select bit(2)

TA0UD

0: Decrement

1: Increment

0: Decrement

1: Increment

0: Decrement

1: Increment

0: Decrement

1: Increment

0: Two-phase pulse signal processing function

disabled

1: Two-phase pulse signal processing function

enabled

NOTES:

1. Read-modify-write instructions cannot be used to set the UDF register. Refer to Usage Notes for details.

2. This bit is enabled when the MR2 bit in the TAiMR register (i = 0 to 4) is set to 0 (the UDF register causes increment/decrement

switching) in event counter mode.

3. Set these bits to 0 when not using the two-phase pulse signal processing function.

TA3P

Timer A3

two-phase pulse signal

processing function select bit(3)

0: Two-phase pulse signal processing function

disabled

1: Two-phase pulse signal processing function

enabled

TA4P

Timer A4

two-phase pulse signal

processing function select bit(3)

0: Two-phase pulse signal processing function

disabled

1: Two-phase pulse signal processing function

enabled

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