p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 272

• Manufacturer Part Number: p2125vps20
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 11 16-Bit Free-Running Timer (FRT)
11.5.9
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 11.14 shows the OCRA write timing.
Rev. 1.00 Sep. 21, 2006 Page 234 of 658
REJ09B0310-0100
φ
FRC
OCRA
OCRAR, OCRAF
Compare-match
signal
Automatic Addition Timing
φ
FRC
Overflow signal
OVF
Figure 11.13 Timing of Overflow Flag (OVF) Setting
Figure 11.14 OCRA Automatic Addition Timing
N
N
H'FFFF
A
H'0000
N + A
N +1