p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 303

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

12.6.4
If the selected edge of TCMCYI is detected in the second half of a cycle of writing to the register
(TCMMLCM) in speed measurement mode, the detected edge signal is delayed by one cycle of
the system clock (φ).
Figure 12.15 shows the timing of this conflict.
Internal write
signal
φ
TCMCYI
Input capture
signal
TCMCNT
TCMICR
MAXOVF
Conflict between Edge Detection in Speed Measurement Mode and Writing to
TCMMLCM
Figure 12.15 Conflict between Edge Detection and Register Write
A
(Speed Measurement Mode)
Capture generated
Capture generated at the third rising edge of measurement cycle
Section 12 16-Bit Cycle Measurement Timer (TCM)
TCMICR > TCMMLCM (Upper limit over)
H'0000
A
Rev. 1.00 Sep. 21, 2006 Page 265 of 658
REJ09B0310-0100