FUJITSU F2MC-8L F202RA - Manual (Page 205)

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CHAPTER 8 8/16-BIT CAPTURE TIMER/COUNTER
8.7 Operation of Counter Functions
This section describes the operation of the 8/16-bit capture timer/counter function.
■ Counter Function Operation
●
8-bit mode
To operate timer 0 as the counter function in the 8-bit mode, the function must be set as shown in Figure
8.7-1 .
Figure 8.7-1 Setting of Counter Function in 8-bit Mode
Counter function operation in the 8-bit mode is the same as interval timer function (timer 0 in
8-bit mode) operation except that the external clock is used instead of the internal clock.
The number of events can be known by reading the capture data register (TCPL). A specific number of
events can be known by the event count detection function.
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
DDR3
0
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
1 1 1
TCR2 PEN TSEL
TCDL
TDR0
: Used bit
: Unused bit
0 : Set "0"
1 : Set "1"
Setting of 00
Setting of a value
other than 111
Number of detected events
Setting of the counter value to be compared