Figure 12.1 Block Diagram Of 16-Bit Free-Running Timer - Renesas H8S/2158 User Manual

Section 12 16-Bit Free-Running Timer (FRT)
External clock
FTCI
FTOA
FTOB
FTIA
FTIB
FTIC
FTID
Legend:
OCRA, OCRB : Output compare register A, B (16 bits)
OCRAR,OCRAF : Output compare register AR, AF (16 bits)
OCRDM : Output compare register (16 bits)
FRC : Free-running counter (16 bits)
ICRA to D : Input capture registers A to D (16 bits)

Figure 12.1 Block Diagram of 16-Bit Free-Running Timer

Rev. 3.00 Jan 25, 2006 page 288 of 872
REJ09B0286-0300
Internal clock
φ/2
φ/8
φ/32
Clock
Clock selector
Compare-match A
Overflow
Clear
Compare-match B
Control logic
Input capture
Comparator M
Compare-match M
ICIA
ICIB
ICIC
Interrupt signal
ICID
OCIA
OCIB
FOVI
OCRAR/F (H/L)
OCRA (H/L)
Comparator A
FRC (H/L)
Comparator B
OCRB (H/L)
ICRA (H/L)
ICRB (H/L)
ICRC (H/L)
ICRD (H/L)
× 1
× 2
OCRDM L
TCSR
TIER
TCR
TOCR
TCSR : Timer control/status register (8 bits)
TIER : Timer interrupt enable register (8 bits)
TCR : Timer control register (8 bits)
TOCR : Timer output compare control register (8 bits)
Internal data bus