h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 358

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 16-Bit Free-Running Timer (FRT)
12.5.9
When the OCRAMS bit in TOCR is set to 1, the contents of OCRAR and OCRAF are
automatically added to OCRA alternately, and when an OCRA compare-match occurs a write to
OCRA is performed. Figure 12.14 shows the OCRA write timing.
Rev. 3.00 Jan 25, 2006 page 306 of 872
REJ09B0286-0300
FRC
OCRA
OCRAR, OCRAF
Compare-match
signal
Automatic Addition Timing
FRC
Overflow signal
OVF
Figure 12.13 Timing of Overflow Flag (OVF) Setting
Figure 12.14 OCRA Automatic Addition Timing
N
N
H'FFFF
A
H'0000
N +1
N + A