194
2. Block diagram
Figure 9.3 shows a block diagram of timer F.
PSS
Toggle
circuit
Toggle
circuit
ø
TMIF
ø
w
/4
TMOFL
TMOFH
TCRF
TCFL
OCRFL
TCFH
OCRFH
TCSRF
Comparator
Comparator
Match
IRRTFH
IRRTFL
Notation:
TCRF:
TCSRF:
TCFH:
TCFL:
OCRFH:
OCRFL:
IRRTFH:
IRRTFL:
PSS:
Timer control register F
Timer control/status register F
8-bit timer counter FH
8-bit timer counter FL
Output compare register FH
Output compare register FL
Timer FH interrupt request flag
Timer FL interrupt request flag
Prescaler S
Internal data bus
Figure 9.3 Block Diagram of Timer F