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CHAPTER 8 8/16-BIT CAPTURE TIMER/COUNTER
● 16-bit mode
To operate the capture function in the 16-bit mode, the function must be set as shown in Figure 8.8-3 .
Figure 8.8-3 Setting of Capture Function in 16-bit Mode
To set the 16-bit capture mode, set the TCS12, TCS11, and TCS10 bits of the timer 1 control register
(TCR1) to 111
B
.
In the 16-bit mode, timers are controlled by the timer 0 control register (TCR0). The higher 8 bits of the
number of detected events are stored in the capture data register H (TCPH), and the lower 8 bits are stored
in the capture data register L (TCPL).
For operation in the 16-bit mode, see operation in the 8-bit mode.
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
TCR2
PEN TSEL
TCPH
TCPL
: Used bit
: Unused bit
0 : Set "0"
Setting of a value
other than 00
Setting of 111
Setting of a value
other than 111
Higher 8 bits of the number of detected events
Lower 8 bits of the number of detected events
0