h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 410

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 16-Bit Timer Pulse Unit (TPU)
Contention between TCNT Write and Increment Operations: If incrementing occurs in the T2
state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented.
Figure 10.50 shows the timing in this case.
Rev. 5.00 Sep 22, 2005 page 384 of 1136
REJ09B0257-0500
Address
Write signal
TCNT input
clock
TCNT
Figure 10.50 Contention between TCNT Write and Increment Operations
TCNT write data
N
TCNT write cycle
TCNT address
T1
T2
M