beautypg.com

Reload timer 0 (external event count), Chapter 38 reload timer 3.configuration, Tmr0 tmrlr0 – FUJITSU MB91460 SERIES FR60 User Manual

Page 793

background image

777

Chapter 38 Reload Timer

3.Configuration

Figure 3-2 Configuration Diagram

Figure 3-3 Register List

Note: For information about ICR registers and interrupt vectors, see

Chapter 24

Interrupt Control (Page

No.311)

”.

Selector

CSL2-0

1 1

0

TMCSR:bit12-10

MOD2-0

0

0

1

1 0
1 1

0

X X

----------

TMCSR:bit9-7

CNTE TMCSR:bit1

0
1

Stop count

Enable count

TRG TMCSR:bit0
0
1

No effect

Soft trigger

TMR0

TMRLR0

16 bit reload register

16 bit down counter

/

/

Underflow

Reload

Event source

.

Counter
activation

Stop

"H" square wave during count

"L" square wave during count

"L" toggle output on count start

"H" toggle output on count start

One-shot mode

Reload mode

OUTL

0

0

RELD

TMCSR: bit5, bit4

1

0

1

1

1

0

Stop

Trigger (reload + counter activation)

* For internal clock, see the previous chart.

Active edge

1

Latch,
output

change

0

Reload

INTE

TMCSR:bit3

0
1

Disable interrupts
Enable interrupts

1

Timer interrupt
(underflow)

UF

TMCSRx:bit2

0

1

Underflow not present

Underflow generation

WRITE 0: Flag clear

0

Reload timer 0 (External event count)

External event *

0

0

1

1 0
1 1

0

X X

----------

Rising edge

Falling edge

Both edges

Disabled

Reload/activation/stop

control circuit

0
0
0
0

1

To general-purpose
port input

To general-purpose
port input

From general-purpose
port output

From general-purpose
port output

TIN0/ICU0/P14.0

PFR14.0

0

1

0

1

GP Port

Reload Timer Input

TIN0

TOT0

0
1

OCU0 output

TOT0 output

TO T0/OCU0/P15.0

Ch01 -> PPG0-PPG1

EPFR15.0