H8S2472 Datasheet, PDF (424/1250 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/2400 Series

Section 10 16-Bit Free-Running Timer (FRT)
Figure 10.1 is a block diagram of the FRT.
Internal clock
φ/2
φ/8
φ/32
Clock selector
Clock
OCRAR/F
OCRA
Compare-match A _{Comparator A}
Overflow
Clear
FRC
Compare-match B _{Comparator B}
Control logic
OCRB
Internal data bus
TCSR
TIER
TCR
TOCR
OCIA
OCIB
FOVI
Interrupt signal
[Legend]
OCRA, OCRB:
OCRAR,OCRAF:
FRC:
TCSR:
TIER:
TCR:
TOCR:
Output compare registers A and B (16 bits)
Output compare registers AR and AF (16 bits)
Free-running counter (16 bits)
Timer control/status register (8 bits)
Timer interrupt enable register (8 bits)
Timer control register (8 bits)
Timer output compare control register (8 bits)
Figure 10.1 Block Diagram of 16-Bit Free-Running Timer
Rev. 2.00 Aug. 20, 2008 Page 376 of 1198
REJ09B0403-0200