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CHAPTER 8 8/16-BIT CAPTURE TIMER/COUNTER
8.4.7 Capture Data Registers H and L (TCPH and TCPL)
The capture data register H (TCPH) stores the number of events of the higher 8 bits in
the 16-bit capture mode of the 8/16-bit capture timer/counter.
The capture data register L (TCPL) stores the number of events in the 8-bit capture
mode of the 8/16-bit capture timer/counter or the number of events of the lower 8 bits in
the 16-bit capture mode.
In the read operation in the timer/counter mode, counter values are read.
■ Capture Data Registers H and L (TCPH and TCPL)
The number of events detected in the capture mode is stored in TCPH and TCPL. Data cannot be written to
these registers because the registers are read-only.
Figure 8.4-8 shows the bit structures of capture data registers H and L.
Figure 8.4-8 Bit Structures of Capture Data Registers H and L (TCPH and TCPL)
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
TCPH
RRRRRRRR
TCPL
RRRRRRRR
R : Read only
X : Undefined
Address
Initial value
001E
H
XXXXXXXX
B
001F
H
XXXXXXXX
B