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FUJITSU F2MC-8L F202RA User Manual

Page 204

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CHAPTER 8 8/16-BIT CAPTURE TIMER/COUNTER

16-bit mode

To operate timer 0 as the interval timer function in the 16-bit mode, the function must be set as shown in

Figure 8.6-4 .

Figure 8.6-4 Setting of Interval Timer Function in 16-bit Mode

In the 16-bit mode, timers are controlled by the timer 0 control register (TCR0), but the timer 1 control

register (TCR1) must be initialized. The values to be set in the data register are the higher 8 bits of TDR1

and the lower 8 bits of TDR0 (16 bits in total). The values are compared with the 16-bit counter value. The

16 bits of the counter are cleared at the same time. Other operations in the 16-bit mode are the same as

timer 0 operation in the 8-bit mode.

bit7

bit6

bit5

bit4

bit3

bit2

bit1

bit0

TCCR

CPIF CFCLR CPIEN CCMSK TCMSK EDGS1 EDGS0 RESV

TCR1

TIF1

TFCR1 T1IEN

TCS12 TCS11 TCS10 TSTR1

TCR0

TIF0

TFCR0

T0IEN

CINV

TCS02 TCS01 TCS00 TSTR0

TCR2

PEN

TSEL

0

TDR1

TDR0

: Used bit
: Unused bit
: Set "0"

Setting of 00

Setting of a value

other than 111

Setting of higher 8 bits of interval time

Setting of lower 8 bits of interval time

1

1

1

0

: Set "1"

1

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