Renesas Laptop 6NM Manual Do Utilizador

Rev.1.10    Jul 01, 2005    page 96 of 318
REJ09B0124-0110

M16C/6N Group (M16C/6NK, M16C/6NM)

12. Timers

This document is under development and its contents are subject to change.

Timer A4 Up/Down Flag

Timer A3 Up/Down Flag

Timer A2 Up/Down Flag

Timer A1 Up/Down Flag

Timer A0 Up/Down Flag

Timer A2 Two-Phase Pulse
Signal Processing Select Bit

 

Timer A3 Two-Phase Pulse
Signal Processing Select Bit

 

Timer A4 Two-Phase Pulse
Signal Processing Select Bit

 

Symbol

Address

After Reset

UDF

0384h

00h

TA4P

TA3P

TA2P

Up/Down Flag 

(1)

Bit Name

Function

Bit Symbol

b7

b6

b5

b4

b3

b2

b1

b0

TA4UD

TA3UD

TA2UD

TA1UD

TA0UD

0 : Down count
1 : Up count

Enabled by setting the MR2 bit in
the TAiMR register to "0" 
(= switching source in UDF register) 
during event counter mode.

0 : Two-phase pulse signal

processing disabled

1 : Two-phase pulse signal

processing enabled 

(2) (3)

     

Symbol

Address

After Reset

TABSR

0380h

00h

Count Start Flag

Bit Name

Function

Bit Symbol

RW

b7

b6

b5

b4

b3

b2

b1

b0

Timer B2 Count Start Flag

Timer B1 Count Start Flag

Timer B0 Count Start Flag

Timer A4 Count Start Flag

Timer A3 Count Start Flag

Timer A2 Count Start Flag

Timer A1 Count Start Flag

TB2S

TB1S

TB0S

TA4S

TA3S

TA2S

TA1S

TA0S

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

WO

WO

WO

NOTES:

1. Use the MOV instruction to write to this register.
2. Make sure the port direction bits for the TA2IN to TA4IN and TA2OUT to TA4OUT pins are

set to "0" (input mode).

3. When not using the two-phase pulse signal processing function, set the corresponding bit to

timer A2 to timer A4 to "0".

Timer A0 Count Start Flag

0 : Stops counting
1 : Starts counting