p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 301

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

12.6
12.6.1
When a conflict between TCMCNT write and count-up operation occurs in the second half of the
TCMCNT write cycle, TCMCNT is not incremented and writing to TCMCNT takes priority.
Figure 12.12 shows the timing of this conflict.
12.6.2
When a conflict between TCMMLCM write and a compare match should occur in the second half
of a cycle of writing to TCMMLCM, writing to TCMMLCM takes priority and the compare
match signal is inhibited. Figure 12.13 shows the timing of this conflict.
φ
Internal write
signal
Internal clock
TCMCNT
input clock
TCMCNT
Figure 12.12 Conflict between TCMCNT Write and Count-Up Operation
Usage Notes
Conflict between TCMCNT Write and Count-Up Operation
Conflict between TCMMLCM Write and Compare Match
Figure 12.13 Conflict between TCMMLCM Write and Compare Match
φ
Internal write
signal
TCMCNT
TCMMLCM
Compare match
signal
N
N
N
T1
T2
T1
Section 12 16-Bit Cycle Measurement Timer (TCM)
T2
Rev. 1.00 Sep. 21, 2006 Page 263 of 658
Inhibited
M
N + 1
M
REJ09B0310-0100
M + 1